Publication list

 

Journal

 

(45) Surface plasmon enhanced bright light emission from InGaN/GaN

K. Okamoto, I. Niki, A. Shvartser, G. Maltezos, Y. Narukawa, T. Mukai, Y. Kawakami, A. Scherer

Physica Status Solidi, Accepted 11/29/2006, in press

 

(44) Time-resolved photoluminescence spectroscopy of surface-plasmon-enhanced light emission from conjugate polymers

T. D. Neal, K. Okamoto, A. Scherer, M. S. Liu, A. K-Y Jen

Applied Physics Letters, Vol. 89, Art. No. 221106 (2006)  PDF file (165KB)

 

(43). Ultralow threshold on-chip toroidal microcavity nanocrystal quantum dot lasers

B. Min, S. Kim, K. Okamoto, L. Yang, A. Scherer, H. Atwater, K. Vahala

Applied Physics Letters, Vol. 89, Art. No. 191124 (2006)  PDF file (529KB)

 

(42) Diffusion of the Platinum ions and platinum nanoparticles during the photo-reduction processes using the transient grating method

M. Harada, K. Okamoto, M. Terazima

Langmuir, Vol. 22, No. 22, pp. 9142-9194 (2006)  PDF file (278KB)

 

(41) Surface plasmon enhanced bright emission from CdSe quantum dots nanocrystal

K. Okamoto, S. Vyawahare, A. Scherer

Journal of the Optical Society of America B, Vol. 23, No. 8, pp. 1674-1678 (2006).  PDF file (300KB)

 

(40). Electrochemical conditions for the synthesis of Cu2O nanowires in alumina template

E. Ko, J. Choi, K. Okamoto, Y. Taka, J. Lee

ChemPhysChem, Vol. 7, No. 7, pp. 1505-1509 (2006).  PDF file (232KB)

 

(39). Near-field scanning optical microscopic transient lens for carrier dynamics study in InGaN/GaN

K. Okamoto, A. Scherer, Y. Kawakami

Applied Physics Letters, Vol. 87, Art. No. 161104 (2005).  PDF file (322KB)

  --->  highlighted at Editors’ Choice, Science Vol.310, p.591 (2005)

 

(38). Confocal micro-photoluminescence of InGaN-based light emitting diodes

K. Okamoto, A. Kaneta, Y. Kawakami, S. Fujita, J. Choi, M. Terazima, T. Mukai

Journal of Applied Physics, Vol. 98, Art. No. 064503 (2005).  PDF file (720KB)

 

(37). Molecular dynamics study of photochromic molecules probed by the mask pattern transferred transient grating technique

K. Okamoto, T. D. Neal, Z. Zhang, D. T. Wei, A. Scherer

Chemical Physics Letters, Vol. 414, pp. 155-160 (2005).  PDF file (218KB)

 

(36). Surface plasmon enhanced spontaneous emission rate of InGaN/GaN quantum wells probed by time-resolved photoluminescence spectroscopy

K. Okamoto, I. Niki, A. Scherer, Y. Narukawa, T. Mukai, Y. Kawakami

Applied Physics Letters, Vol. 87, Art. No. 071102 (2005).  PDF file (364KB)

 

(35). Surface plasmon enhanced emission from dye doped polymer layers

T. D. Neal, K. Okamoto, A. Scherer

Optics Express, Vol. 13, No. 14, pp. 5522-5527 (2005).  PDF file (118KB)

  --->  highlighted at Laser Focus World, September 2005, p. 36

 

(34). Surface plasmon enhanced super bright InGaN light emitter

K. Okamoto, I. Niki, A. Shvartser, Y. Narukawa, T. Mukai, and A. Scherer

Physica Status Solidi (c), Vol. 2, No. 7, pp. 2841-2844 (2005).  PDF file (104KB)

 

(33). Mask pattern transferred transient grating technique for molecular dynamics study in solutions

K. Okamoto, Z. Zhang, D. T. Wei, and A. Scherer

Applied Physics Letters, Vol. 85, No. 21, pp. 4842-4844 (2004).  PDF file (207KB)

 

(32). Surface plasmon enhanced light-emitters based on InGaN quantum wells

K. Okamoto, I. Niki, A. Shvartser, Y. Narukawa, T. Mukai, and A. Scherer

Nature Materials, Vol. 3, No. 9, pp. 601–605 (2004).  PDF file (372KB)

  --->  highlighted at Photonics Spectra, December 2004, p. 105

 

(31). Photothermal molecular sensing by using metal thin-film nano grating for chemical and biomedical applications

K. Okamoto, Z. Zhang, D. T. Wei, and A. Scherer

Thin Solid Films, Vol. 469-470, pp. 420-424 (2004).  PDF file (332KB)

 

(30). Submicron-scale photoluminescence of InGaN/GaN probed by confocal scanning laser microscopy

K. Okamoto, J. Choi, Y. Kawakami, M. Terazima, T. Mukai, and S. Fujita

Japanese Journal of Applied Physics, Vol. 43, No. 2, pp. 839-840 (2004).  PDF file (128KB)

 

(29). Photonic crystal nanolasers (I): Porous cavity lasers

M. Lončar, T. Yoshie, K. Okamoto, Y. Qiu, J. Vučković, A. Scherer

IEICE Transaction on Electronics, Vol. E87-C, No. 3, pp. 291-299 (2004).  PDF file (1430KB)

 

(28). Sub-microscopic transient lens spectroscopy of InGaN/GaN quantum wells

K. Okamoto, S. Fujita, Y. Kawakami, A. Scherer

Physica Status Solidi (b), Vol. 240, No. 2, pp. 368-371 (2003).  PDF file (309KB)

 

(27). Recombination dynamics in low-dimensional nitride semiconductors

Y. Kawakami, A. Kaneta, K Omae, A. Shikanai, K. Okamoto, G. Marutsuki, Y. Narukawa, T. Mukai, S. Fujita

Physica Status Solidi (b), Vol. 240, No. 2, pp. 337-343 (2003).  PDF file (460KB)

 

(26). Near-field scanning optical microscopy of photonic crystal nanocavities

K. Okamoto, M. Lončar, T. Yoshie, A. Scherer, Y. Qui, P. Gogna,

Applied Physics Letters, Vol. 82, No. 10, pp. 1676-1678 (2003).  PDF file (328KB)

 

(25). Contribution of hydrogen bonding to the slow diffusion of transient radicals

K. Okamoto, Y. Nogami, T. Tominaga, M. Terazima

Chemical Physics Letters, Vol. 372, pp. 419-422 (2003).  PDF file (155KB)

 

(24). Photonic crystal nanocavities for efficient light confinement and emission

A. Scherer, T. Yoshie, M. Lončar, J. Vučković, K. Okamoto, D. Deppe

Journal of the Korean Physical Society, Vol 42, pp. S768-S773 (2003).  PDF file (585KB)

 

(23). Nonradiative recombination processes of carriers in InGaN/GaN probed by the microscopic transient lens spectroscopy

 

K. Okamoto, K. Inoue, Y. Kawakami, Sg. Fujita, M. Terazima, A. Tsujimura, I. Kidoguchi

Review of Scientific Instruments, Vol. 74, No. 1, pp. 575-577 (2003).  PDF file (71.7KB)

 

(22). Spatial and temporal luminescence dynamics in an InxGa1-xN single quantum well probed by near field optical microscopy

A. Kaneta, K. Okamoto, Y. Kawakami, Sg. Fujita, G. marutsuki, Y. Narukawa, T. Mukai

Applied Physics Letters, Vol. 81, No. 23, pp. 4353-4355 (2002).  PDF file (180KB)

 

(21). Erratum: ‘‘Narrow luminescence lines from self-assembled CdSe quantum dots at room temperature’’ [Appl. Phys. Lett. 78, 297 (2001)]

Z. H. Zheng, K. Okamoto, H. C. Ko, Y. Kawakami, Sg. Fujita

Applied Physics Letters, Vol. 78, No. 23, p. 3749 (2002).  PDF file (10.4KB)

 

(20). Microscopic patterning on the polysilane films by the laser induced grating technique

K. Okamoto,  T. Tojo,  H. Tada,  M. Terazima, K. Matsushige

Molecular Crystal and Liquid Crystals, 370, pp370-382 (2001).  PDF file (155KB)

 

(19). Carrier dynamics in InGaN/GaN SQW structure probed by the transient grating method with subpicosecond pulsed laser

K. Okamoto, A. Kaneta, K. Inoue, Y. Kawakami, M. Terazima, T. Mukai, G. Shinomiya, Sg. Fujita

Physica Status Solidi B, Vol. 228, No. 1, pp. 81-84 (2001).  PDF file (143KB)

 

(18). Spatial inhomogeneity of photoluminescence in InGaN single quantum well structures

A. Kaneta, G. Marutsuki, K. Okamoto, Y. Kawakami, Y. Nakagawa, G. Shinomiya, T. Mukai, Sg. Fujita

Physica Status Solidi B, Vol. 228, No. 1, pp. 153-1564 (2001).  PDF file (249KB)

 

(17). In inhomogeneity and emission characteristics of InGaN

Y. Kawakami, K. Omae, A. Kaneta, K. Okamoto, Y. Narukawa, T. Mukai, Sg. Fujita

Journal of Physics: Condensed Matter, Vol. 13, pp. 6993-7010 (2001).  PDF file (863KB)

 

(16). Spatial inhomogeneity of photoluminescence in an InGaN-based light-emitting diode structure probed by near-field optical microscopy under illumination-collection mode

A. Kaneta, T. Izumi, K. Okamoto, Y. Kawakami, Sg. Fujita, Y. Narita, T. Inoue, T. Mukai

Japanese Journal of Applied Physics, Vol. 40 pp. 110-111 (2001)  PDF file (41.1KB)

 

(15). Radiative and nonradiative recombination processes in GaN-based semiconductors

Y. Kawakami, K. Omae, A. Kaneta, K. Okamoto, T. Izumi, S. Saijo, K. Inoue, Y. Narukawa, S. Nakamura, Sg. Fujita

Physica Status Solidi (a), Vol. 183, pp. 41-50 (2001)  PDF file (208KB)

 

(14). Translational diffusion of ion radicals created by electron transfer in charged micellar solutions probed by the transient grating method and the Taylor dispersion method

K. Okamoto,  N. Hirota,  M. Terazima,  T. Tominaga,

The Journal of Physical Chemistry A, Vol.105, No.27, pp. 6586-6593 (2001).  PDF file (107KB)

 

(13). Photothermal processes of wide-bandgap semiconductors probed by the transient grating method

K. Okamoto,  Y. Kawakami ,  Shigeo Fujita,  M. Terazima

Analytical Science, Vol. 17, pp. s312-s314 (2001).  PDF file (421KB)

 

(12). Time-space resolved photoluminescence from (Zn,Cd)Se -based quantum dots structures

K. Okamoto,  H.-C. Ko,  Y. Kawakami,  Sg. Fujita

Journal of Crystal Growth, 214/215, pp. 639-645 (2000).  PDF file (502KB)

 

(11). Time-reserved photoluminescence spectroscopy in GaN-based semiconductors with micron special

T. Izumi,  Y. Narukawa,  K. Okamoto,  Y. Kawakami ,  Shigeo Fujita,  S. Nakamura

Journal of Luminescence, 87-89, pp. 1196-1198 (2000).  PDF file (424KB)

 

(10). Diffusion of photochemically generated intermediate radicals in water-ethanol mixed solvents

K.Okamoto,  N. Hirota,  M. Terazima

The Journal of Physical Chemistry A, Vol.102, No.19 pp. 3447-3454 (1998).  PDF file (104KB)

 

(9). Diffusion of electrically neutral radicals and anion radicals created by photochemical reaction

K. Okamoto,  N. Hirota,  M. Terazima

The Journal of Chemical Society Faraday Transaction, Vol.94, No.1 pp. 185-194 (1998).  PDF file (337KB)

 

(8). Diffusion process of the benzyl radical created by photodissociated probed by the transient grating method

K. Okamoto,  N. Hirota,  M. Terazima

The Journal of Physical Chemistry A, Vol.101, No.29, pp. 5269-5277 (1997).  PDF file (306KB)

 

(7). Comment on "Diffusion of free radicals in solution. TEMPO, diphenylpicrylhydrazyl, and nitrosodisulfonate"

K. Okamoto,  N. Hirota,  M. Terazima

The Journal of Physical Chemistry A, Vol.101, No.29, pp. 5380-5381 (1997).  PDF file (52.8KB)

 

(6). Temperature dependence of diffusion of radical intermediates probed by the

transient grating method

K. Okamoto,  M. Terazima,  N. Hirota

The Jounal of Chemical Physics, Vol.103, No.24, pp. 10445-10452 (1995).  PDF file (169KB)

 

(5). Translational diffusion of transient radicals created by the photoinduced hydrogen abstraction reaction in solution: Anomalous size dependence in the radical diffusion

M. Terazima,  K. Okamoto,  N. Hirota

The Jounal of Chemical Physics, Vol.102, No.6, pp. 2506-2515 (1995).  PDF file (249KB)

 

(4). Translational diffusion of transient radicals studied by the transient grating method

M. Terazima,  K. Okamoto,  N. Hirota

Journal of Molecular Liquids, Vol.65/66, pp. 401-404 (1995)  PDF file (732KB)

 

(3). Molecular dynamics in solution probed by the transient grating method with a nanosecond pulsed Laser

M. Terazima,  K. Okamoto,  N. Hirota

Laser Chemistry, Vol.13, pp. 169-185 (1994)  PDF file (3130KB)

 

(2). Transient radical diffusion in photoinduced hydrogen abstraction reaction of benzophenone probed by transient grating method

M. Terazima,  K. Okamoto,  N. Hirota

The Journal of Physical Chemistry, Vol.97, No.50 pp. 13387-13393 (1993).  PDF file (878KB)

 

(1). Diffusion process of methyl red in organic solvents studied by the transient grating method

M. Terazima,  K. Okamoto,  N. Hirota

The Journal of Physical Chemistry, Vol.97, No.19 pp. 5188-5192 (1993).  PDF file (543KB)

 

 

Proceedings

 

(13). Surface plasmon enhanced InGaN light emitter

K. Okamoto, I. Niki, A. Shvartser, G. Maltezos, Y. Narukawa, T. Mukai, K. Nishizuka, Y. Kawakami, A. Scherer

Proceedongs of SPIE, vol 5733, pp94-103 (2005).  PDF file (489KB)

 

(12). Photonic crystal nanocavities with quantum well or quantum dot active material

T. Yoshie, M. Loncar, K. Okamoto, Y. Qiu; O. B. Shchekin,, H. Chen, D. G. Deppe, A. Scherer

Proceedongs of SPIE, vol 5360, pp16-23 (2004).

 

(11). Light concentration in photonic crystal and plasmon optical cavities

A. Scherer, M. Loncar, K. Okamoto, T. Yoshie, M. Adams, J. Witzens

Lasers and Electro-Optics Society, 2004. LEOS 2004. Vol. 2, pp. 815- 816 (2004)  PDF file (717KB)

 

(10). Photonic bandgap microcavities and waveguides

A. Scherer, M. Loncar,, T. Yoshie, K. Okamoto, B. Maune, J. Witzens

SOI Conference, 2003. IEEE International, pp. 9- 11 (2003)  PDF file (257KB)

 

(9). Photonic bandgap microcavity devices

A. Scherer, M. Loncar,, T. Yoshie, K. Okamoto

Nanotechnology, 2003. IEEE-NANO 2003. Vol. 1 pp. 275- 276 (2003)  PDF file (206KB)

 

(8). 2-D photonic crystal microcavities

A. Scherer, T. Yoshie, M. Loncar,, J. Vuckovic, D. Deppe, K. Okamoto

2003 Digest of the LEOS Summer Topical Meetings. Page TuA3.1/47 (2003)  PDF file (108KB)

 

(7). Recombination mechanism in low-dimensional nitride semiconductors

Y. Kawakami, A. Kaneta, K. Okamoto, T. Inoue, F. Satou, Y. Narita, F. Henneberger, G. Marutsuki, Y. Narukawa, T. Mukai, S. Fujita

Proceedongs of SPIE, vol 4986, pp575-588 (2003).

 

(6). Direct observation of the nonradiative recombination processes in InGaN-based LEDs probed by the third-order nonlinear spectroscopy

K. Okamoto, S. Saijo, Y. Kawakami, Sg. Fujita, M. Terazima, T. Mukai, G. Shinomiya, S. Nakamura

Proceedongs of SPIE, vol 4278, pp150-157 (2001).  PDF file (477KB)

 

(5). Dynamics of spontaneous and stimulated emission in GaN-based semiconductors

Y. Kawakami, K. Omae, A. Kaneta, K. Okamoto, T. Izumi, S. Saijo, K. Inoue, Y. Narukawa, T. Mukai, Sg. Fujita

Proceedongs of SPIE, vol 4280, pp45-52 (2001).  PDF file (993KB)

 

(4). Time-resolved fluorescence spectroscopy of dopamine in the single cells

M. Mabuchi, J. Shimada, K. Okamoto, Y. Kawakami, Sg. Fujita, K. Matsushige,

Proceedongs of SPIE, vol 4252, pp140-147 (2001).  PDF file (222KB)

 

(3). Nonradiative recombination processes in GaN-based semiconductors probed by the transient grating method.

K. Okamoto,  Y. Kawakami,  Sg. Fujita,  M. Terazima,  S. Nakamura,

Proc. Int. Workshop on Nitride Semiconductors, IPAP Conf. Series 1 pp. 540-543 (2000).  PDF file (312KB)

 

(2). Recombination dynamics in GaN and InGaN/GaN multiple quantum wells on air-bridged lateral epitaxial grown GaN layers

T. Izumi, K. Inoue, Y. Narukawa, K. Okamoto, Y. Kawakami, Sg. Fujita, A. Tsujimura, I. Kidoguchi, Y. Ban

Proc. Int. Workshop on Nitride Semiconductors, IPAP Conf. Series 1 pp. 599-602 (2000).  PDF file (316KB)

 

(1). Postdoctoral scholars should do research with free style - In case of Kyoto University-Venture Business Laboratory -

   ポストドク研究員だからこそできる自由な研究 -京都大学ベンチャービジネスラボラトリーにて-

岡本晃一 (Koichi Okamoto)

化学と工業 (Kagaku to Kogyo), Vol. 53, No. 7, pp. 798-8002000PDF file (794KB)

 

 

International Conference

 

(42). (Invited) Surface plasmon enhanced light emission

K. Okamoto

Focused Session in International Workshop on Nitride Semiconductors (IWN2006), Kyoto Univ., Japan, 2006

 

(41). Surface plasmon enhanced bright light emission from InGaN/GaN

K. Okamoto, I. Niki, A. Shvartser, G. Maltezos, Y. Narukawa, T. Mukai, Y. Kawakami, A. Scherer

International Workshop on Nitride Semiconductors (IWN2006), Kyoto, Japan, 2006

 

(40). Surface plasmon enhanced light emission from CdSe quantum dot nanocrystals

K. Okamoto, S. Vyawahare, A. Scherer

Conference on Lasers and Electro-Optics/ Quantum Electronics & Laser Science Conference (CLEO/QELS), Long Beach, USA, 2006

 

(39). Enhanced light emission from dye doped polymer layers using surface plasmons

T. D. Neal, K. Okamoto, A. Scherer

Conference on Lasers and Electro-Optics/ Quantum Electronics & Laser Science Conference (CLEO/QELS), Long Beach, USA, 2006

 

(38). Ultralow threshold on-chip toroidal microcavity nanocrystal quantum dot lasers

B. Min1, S. Kim, K. Okamoto, L. Yang, A. Scherer, H. Atwater, K. Vahala

Conference on Lasers and Electro-Optics/ Quantum Electronics & Laser Science Conference (CLEO/QELS), Long Beach, USA, 2006

 

(37). Ultralow threshold nanocrystal quantum dot lasers

B. Min, S. Kim, K. Okamoto, L. Yang, A.l Scherer, H. Atwater, K. Vahala

2006 Material Research Society (MRS) spring meeting, San Francisco, USA, 2005

 

(36) (Invited) Surface plasmon enhanced super bright solid-state light emitters: Fabrication and characterization

K. Okamoto

CSU-Long Beach Physics Colloquium, Long Beach, USA, 2005

 

(35). Surface plasmon enhanced high-speed spontaneous emission of InGaN/GaN

K. Okamoto, I. Niki, Y. Narukawa, T. Mukai, Y. Kawakami, A. Scherer

2005 Material Research Society (MRS) fall meeting, Boston, USA, 2005

 

(34). New applications of nano-structured-metal/semiconductor and -metal/liquid interface

K. Okamoto, A. Scherer

MRS – Spring Meeting 2005, San Fransisco, USA, 2005

 

(33). Surface plasmon enhanced InGaN light emitter

K. Okamoto, I. Niki, A. Shvartser, G. Maltezos, Y. Narukawa, T. Mukai, K. Nishizuka, Y. Kawakami, A. Scherer

SPIE Photonics West, Optelectronics 2005, San Jose, California, USA,2005.

 

(32). Improved Optical Heterodyne Detected Transient Grating Method by using a Thin Film Grating

K Okamoto, Z. Zhang, D. T. Wei, and A. Scherer

AVS, 51st International Symposium & Exhibition, Anaheim, USA, 2004.

 

(31). Temporal and spatial-resolved nonlinear spectroscopy of InGaN/GaN

K. Okamoto, Y. Kawakami, M. Terazima, and A. Scherer

Frontiers in Optics 2004/ Laser Science XX (FiO/LS) - The 88th OSA annual meeting -, Rochester, USA, 2004

 

(30). Surface plasmon enhanced super bright InGaN light emitter

K. Okamoto, I. Niki, A. Shvartser, Y. Narukawa, T. Mukai, and A. Scherer

MRS - International Workshop on Nitride Semiconductors (IWN2004), Pittsburgh, USA, 2004

 

(29). Surface plasmon enhanced internal quantum efficiencies of emission from InGaN/GaN quantum wells

K. Okamoto, I. Niki, A. Shvartser, Y. Narukawa, T. Mukai, and A. Scherer

The Conference on Lasers and Electro-Optics/ International Quantum Electronics Conference (CLEO/IQEC), San Francisco, USA, 2004

 

(28). Photothermal molecular sensing by using metal thin-film nano grating for chemical and biomedical applications

K Okamoto, Z. Zhang, D. T. Wei, and A. Scherer

The International Conference On Metallurgical Coatings And Thin Films (ICMCTF), San Diego, USA, 2004.

 

(27). Near-field Scanning Optical Microscopy of Photonic Crystal Laser

K. Okamoto, M. Lončar, T. Yoshie, A. Scherer

PECS-V: International Workshop on Photonic and Electromagnetic Crystal Structures, Kyoto, Japan 2004  PDF file (163KB)

 

(26). Photonic crystal nanocavity modes probed by near-field scanning optical microscopy

K. Okamoto, M. Lončar, T. Yoshie, A. Scherer

2003 Material Research Society (MRS) fall meeting, Boston, USA, 2003

 

(25). Nanograting for photo-thermal detection

Z. Zhang, K. Okamoto, D. T. Wei, and A. Scherer

AVS The Science & Technology Society, Southern California Chapter, Anaheim, USA, 2003.

 

(24). Molecular detection based on the nonlinear optical effect with nano-grating

K Okamoto, Z. Zhang, D. T. Wei, and A. Scherer

AVS The Science & Technology Society, Southern California Chapter, Anaheim, USA, 2003.

 

(23). Recombination dynamics in low-dimensional nitride semiconductors

Y. Kawakami, A. Kaneta, K Omae, A. Shikanai, K. Okamoto, G. Marutsuki, Y. Narukawa, T. Mukai, S. Fujita

The 5th International Conference on Nitride Semiconductors (ICNS-5), Nara, Japan. 2003

 

(22). Sub-Microscopic transient lens spectroscopy of InGaN/GaN quantum wells

K. Okamoto, Y. Kawakami, S. Fujita, A. Scherer

The 5th International Conference on Nitride Semiconductors (ICNS-5), Nara, Japan. 2003

 

(21). Nerr-field scanning optical microscopy of photonic crystal high-Q nanocavities

K. Okamoto, L. Marko, T. Yoshie, A. Scherer, Y. Qui, P. Gogna

Conference on Lasers and Electro-Optics/ Quantum Electronics & Laser Science Conference (CLEO/QELS), Baltimore, Maryland, USA, 2003

 

(20). Recombination mechanism in low-dimensional nitride semiconductors

Y. Kawakami, K. Omae, A. Shikanai, K. Okamoto, A. Kaneta, Sg. Fujita, J. Puls, F. Henneberger, Y. Narukawa, G. Marutsuki, S. Nagahama, T. Mukai

SPIE Photonics West Optelectronics 2003, San Jose, California, USA, 2000

 

(19). Localized cavity modes and dielectric band modes of photonic crystal probed by near-field scanning optical microscopy

K. Okamoto, L. Marko, T. Yoshie, A. Scherer, Y. Qui, P. Gogna

International Workshop on Photonic and Electromagnetic Crystal Structures (PECS-IV), Los Angeles, USA 2002

 

(18). Nonradiative Recombination Processes of Carrier in InGaN/GaN probed by the Microscopic Transient Lens Spectroscopy

K. Okamoto, K. Inoue, Y. Kawakami, Sg. Fujita, M. Terazima, A. Tujimura, I. Kidoguchi

The 12th International Conference on Photoacoustic and Photothermal Phenomena, Toronto, Canada 2002

 

(17). Spatial inhomogeneity of photoluminescence in InGaN single quantum well structures

A. Kaneta, G. Marutsuki, K. Okamoto, Y. Kawakami, Y. Nakagawa, G. Shinomiya, T. Mukai, Sg. Fujita

The 4th International Conference on Nitride Semiconductors, Denver, Colorado USA. 2001

 

(16). Carrier dynamics in InGaN/GaN SQW structure probed by the transient grating method with subpicosecond pulsed laser

K. Okamoto, A. Kaneta, K. Inoue, Y. Kawakami, M. Terazima, T. Mukai, G. Shinomiya, Sg. Fujita

The 4th International Conference on Nitride Semiconductors, Denver, Colorado, USA. 2001

 

(15). Dynamics of Spontaneous and Stimulated Emission in GaN-based Semiconductors

Y. Kawakami, K. Omae, A. Kaneta, K. Okamoto, T. Izumi, S. Saijo, K. Inoue, Y. Narukawa, T. Mukai, Sg. Fujita

SPIE Photonics West Optelectronics 2001, San Jose, California, USA, 2001

 

(14). Time-Resolved Fluorescence Spectroscopy of Dopamine in the Single Cells

M. Mabuchi, J. Shimada, K. Okamoto, Y. Kawakami, Sg. Fujita, K. Matsushige,

SPIE Photonics West Optelectronics 2001, San Jose, California, USA,2001

 

(13). Direct Observation of the Nonradiative Recombination Processes in InGaN-based LEDs probed by the third-order Nonlinear Spectroscopy

K. Okamoto, S. Saijo, Y. Kawakami, Sg. Fujita, M. Terazima, T. Mukai, G. Shinomiya, S. Nakamura

SPIE Photonics West Optelectronics 2001, San Jose, California, USA, 2001

 

(12). Microscopic Patterning on the Polysilane Films by the Laser Induced Grating Technique.

K. Okamoto,  T. Tojo,  H. Tada,  M. Terazima,  K. Matsushige

Korea-Japan Joint Forum 2000,  Organic Materials for Electronics and Photonics, Kyoto 2000

 

(11). Optical Properties of Highly Oriented Oligosilane Films.

T. Tojo, K. Okamoto, M. Kako, H. Tada, Y. Kawakami, Y. Nakadaira, Sg. Fujita, K. Matsushige

International Chemical Congress of Pacific Basin Societies, Honolulu, Hawaii, 2000

 

(10). Novel Surgical Micro-tumer Tracking System for Lung Tumors.

J. Shimada,  K. Okamoto,  K. Kuboyama,  K. Matsushige

World Congress of High Tech Medicine, October Hannover, Germany, 2000

 

(9). Surgical Micro-Tumor Tracking System for Lung Tumors

J. Shimada,  K. Kuboyama,  K. Okamoto,  K. Matsushige

World Conference on Lung Canser, September Tokyo, 2000

 

(8). Recombination Dynamics in GaN and InGaN/GaN Multiple Quantum Wells on Air-bridged Lateral Epitaxial Grown GaN Layers

T. Izumi, K. Inoue, Y. Narukawa, K. Okamoto, Y. Kawakami, Sg. Fujita, A. Tsujimura, I. Kidoguchi, Y. Ban

International Workshop on Niteride Semiconductors, Nagoya, 2000

 

(7). Nonradiative Recombination Processes in GaN-based Semiconductors Probed by the Transient Grating Method.

K. Okamoto,  Y. Kawakami,  Sg. Fujita,  M. Terazima,  S. Nakamura,

International Workshop on Niteride Semiconductors, Nagoya, 2000 

 

(6). Time-resolved Luminescence Spectroscopy in InGaN-based Semiconductors

Y. Kawakami, K. Omae, A. Kaneta, K. Okamoto, T. Izumi, S. Saijo, K. Inoue, Y. Narukawa, S. Nakamura, Sg. Fujita

Frontier Science Research Conference, La Jolla, USA, 2000

 

(5). Photothermal Processes of wide-bandgap Semiconductors probed by the Transient Grating Method.

K. Okamoto,  Y. Kawakami,  Sg. Fujita,  M. Terazima

11th International Conference on Photothermal and Photo acoustic Phenomena, Kyoto, 2000

 

(4). Time-reserved Photoluminescence Spectroscopy in GaN-based Semiconductors with Micron Special.

T. Izumi,  Y. Narukawa,  K. Okamoto,  Y. Kawakami ,  Shigeo Fujita,  S. Nakamura

Intern. Conf. On Luminescence and Optical Spectroscopy of Condensed Matter, Osaka, 1999

 

(3). Photothermal Processes of ZnCdSe/ZnSe Quantum Well Structures Probed by the Third-order Nonlinear Spectroscopy.

K. Okamoto,  Y. Kawakami,  Sg. Fujita,  M. Terazima

The Third SANKEN International Symposium, Osaka, 2000

 

(2). Time-space resolved Photoluminescence from (Zn,Cd)Se -based Quantum Dots

K. Okamoto,  H.-C. Ko,  Y. Kawakami,  Sg. Fujita

The 9th International Conference on II-VI Compounds, Kyoto, 1999

 

(1). Translational Diffusion of Transient Radicals Studied by the Transient Grating Method.

Masahide Terazima,  Koichi Okamoto,  Noboru Hirota

Yamada Conferebce XXXXII on structure, flactuation, and relaxation in solution. Yamada, 1994 

 

Other 62 Japanese conference talks were presented.

 

 

Awards

 

(11). Kansai Silicon valley Forum, Venture Business Prize, Mar. 2001

 

(10). JSPS Research Fellowship for Young Scientists, Apr. 2000 – Dec. 2002

 

(9). Grant of the Research Foundation for Opto-Science and Technology, Apr. 2000 – Mar. 2002

 

(8). Kansai Techno-Idea Prize ’2000, Nov. 2000

 

(7). Konica Imaging Science Prize, Jan. 2000

 

(6). Kansai techno-Idea Prize ’99, Japan, Nov. 1999

 

(5). Young Researcher Prize in Kyoto University-Venture Business Lab., May, 1999

                

(4). Kansai Silicon valley Forum, Venture Idea Prize, May 1999

 

(3). KU-VBL, Techno-Idea Prize, Nov. 1998

                

(2). KU-VBL, Research Grant for Young Scientists, Sep. 1998 – Mar. 2001

 

(1). Fellowship of the Japan Scholarship Foundation, Apr. 1994 – Mar. 1997

 

 

US Patent

 

(2). Nitride Semiconductor Device and a Process manufacturing the same

Inventors:  Y. Narukawa, I. Niki, A. Scherer, K. Okamoto, Y. Kawakami, M. Funato, S. Fujita 

Assignee:  Nichia Corporation

United States Patent  6,876,009 

April 5, 2005 

 

(1). Electric Field Sensor Using Liquid Crystal and Three-dimensional Movie Player/Recorder Using the Same.

Inventors:  K. Okamoto, Y. Kawakami

Assignee:  F. Suzuki, Toko, Co., Ltd., S. Miyazato, A. Sakai

United States Patent  6,629,762  

October 7, 2003

 

2 other US patents were submitted.

 

 

Patent application in Japan

 

(6). Nitride Semiconductor Device and a Process manufacturing the same

Inventors:  Y. Narukawa, I. Niki, A. Scherer, K. Okamoto, Y. Kawakami, M. Funato, S. Fujita 

Assignee:  Nichia Corporation

Submitted 2003-284758,  Published 2004-193555

 

(5). Optical assembly device

Inventors:  Y. Kawakami, K. Okamoto, A. Kaneta, S. Fujita

Assignee:  Kansai Technology Licensing Organization Co.

Submitted 2001-5881,  Published 2002-123965

 

(4). Optical memory device

Inventors:  Y. Kawakami, K. Okamoto, A. Kaneta, S. Fujita

Assignee:  Kansai Technology Licensing Organization Co.

Submitted 2000-244127,

 

(3). Near-field optical microscopic device

Inventors:  Y. Kawakami, K. Okamoto, A. Kaneta, S. Fujita

Assignee:  Kansai Technology Licensing Organization Co.

Submitted 2000-216432,  Published 2002-31591

 

(2). Microscopic device

Inventors:  K. Okamoto, Y. Kawakami

Assignee:  Kansai Technology Licensing Organization Co.

Submitted 2000-35992,  Published 2001-228403

 

(1). Electric Field Sensor Using Liquid Crustal and Three-dimensional Movie Player/Recorder Using the Same.

Inventors:  K. Okamoto, Y. Kawakami

Assignee:  F. Suzuki, Toko, Co., Ltd., S. Miyazato, A. Sakai

Japanese Patent  3,515,994  

 

 

 

 

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