2009

Matt J. Dicken*, Koray Aydin*, Imogen M. Pryce*, L. A. Sweatlock, E. M. Boyd, S. Walavalkar, J. Ma, and Harry A. Atwater, "Frequency tunable near-infrared metamaterials based on VO2 phase transition" Optics Express 17, 18330 (2009) (*equal contribution)

A. O. Cakmak, Koray Aydin, E. Colak, Z. Li, F. Bilotti, L. Vegni, and E. Ozbay, "Enhanced transmission through a subwavelength aperture using metamaterials" Appl. Phys. Lett. 95, 052103 (2009).

Koray Aydin, A. O. Cakmak, L. Sahin, Z. Li, F. Bilotti, L. Vegni, and E. Ozbay, "Split-ring-resonator-coupled enhanced transmission through a single subwavelength aperture" Phys. Rev. Lett 102, 013904 (2009).

Zhaofeng Li, Koray Aydin, and Ekmel Ozbay, "Determination of the effective constitutive parameters of the bianisotropic metamaterials from reflection and transmission coefficients" Phys. Rev. E 79, 026610 (2009).

2008

R. S. Penciu, K. Aydin, M. Kafesaki, Th. Koschny, E. Ozbay, E. N. Economou and C. M. Soukoulis "Multi-gap individual and coupled split-ring resonator structures" Optics Express 16, 18131 (2008).

Koray Aydin, Z. Li, L. Sahin, and E. Ozbay, "Negative phase advance in polarization independent, multi-layer negative index metamaterials" Optics Express 16, 8835 (2008).

Zhaofeng Li, Koray Aydin and Ekmel Ozbay, "Wide bandwidth directional beaming via waveguide ports in photonic crystals" J. Phys. D. 41, 155115 (2008).

Ekmel Ozbay, Z. Li and Koray Aydin, "Super-resolution imaging by one dimensional, microwave left-handed metamaterials with an effective negative index" J. Phys. Cond. Matt. 20, 304216 (2008).

B. Butun*, K. Aydin*, E. Ulker, S. Cheylan, G. Badenes, M. Forster, U. Scherf, and E. Ozbay,  "A hybrid light source with integrated inorganic light-emitting diode and organic polymer distributed feedback grating" Nanotechnology 19, 195202 (2008). (*equal contribution)

E. Ozbay and K. Aydin, "Negative refraction and imaging beyond the diffraction limit by a two-dimensional left-handed metamaterial" Photon. Nanostr.: Fundam. Appl. 6, 108 (2008). [INVITED]

K. Aydin, Z. Li, S. Bilge, and E. Ozbay, "Experimental and numerical study of omega type bianostropic metamaterials combined with a negative permittivity medium" Photon. Nanostr.: Fundam. Appl. 6, 116 (2008).

2007

F. Bilotti, A. Toscano, L. Vegni, K. Aydin, K. B. Alici, and E. Ozbay, "Equivalent circuit models for the design of metamaterials based on artificial magnetic inclusions" IEEE Trans. Microw. Theory Tech. 55, 2865 (2007).

Koray Aydin, Zhaofeng Li, M. Hudlicka, S. A. Tretyakov, Ekmel Ozbay, "Transmission characteristics of bianisotropic metamaterials based on omega shaped metallic inclusions" New J. Phys. 9, 326 (2007).

E. Ozbay, K. Guven and K. Aydin, "Metamaterials with negative permeability and negative refractive index: Experiments and simulations" J. Opt. A.: Pure Appl. Opt. 9, S301 (2007). [INVITED]

Zhaofeng Li, Koray Aydin, and Ekmel Ozbay, "Highly directional emission from photonic crystals with a wide bandwidth" Appl. Phys. Lett. 91, 121105 (2007).

E. Ozbay, and K. Aydin, "Experimental study of subwavelength focusing by left-handed metamaterials with negative refractive index" J. Nanophotonics 1, 011695 (2007).

Koray Aydin, I. Bulu and E.Ozbay, "Subwavelength resolution with a negative-index metamaterial superlens" Appl. Phys. Lett. 90, 254102 (2007).

Koray Aydin, and E. Ozbay, "Left-handed metamaterial based superlens for subwavelength imaging of electromagnetic waves" Appl. Phys. A: Mat. Sci. Proc.  87, 137 (2007).

E. Ozbay, K. Aydin, I. Bulu, and K. Guven, "Negative refraction, subwavelength focusing and beam formation by photonic crystals" J. Phys. D: Appl. Phys. 40, 2652 (2007).

K. Aydin, and E. Ozbay, "Experimental and numerical analyses of the resonances of split-ring resonators" Phys. Stat. Sol. B. 244, 1197 (2007).

I. Bulu, H. Caglayan, K. Aydin, and E. Ozbay, "Study of the field emitted by a source placed inside a two dimensional left-handed metamaterial" Opt. Lett. 32, 850 (2007).

K. Aydin, and E. Ozbay, "Experimental investigation of reflection characteristics of left-handed metamaterials in free space" IET  Microw. Antennas Propag. 1, 89 (2007).

K. Aydin, and E. Ozbay, "Capacitor-loaded split ring resonators as tunable metamaterial components" J. Appl. Phys. 101, 024911 (2007).

2006

Koray Aydin, I. Bulu, and E. Ozbay, "Electromagnetic wave focusing from sources inside a two-dimensional left-handed material superlens" New J. Phys. 8, 221 (2006).

Koray Aydin, I. Bulu and E. Ozbay, "Verification of impedance matching at the surface of left-handed materials," Microw. Opt. Tech. Lett. 48, 2548 (2006).

Koray Aydin, and E. Ozbay, "Identifying the magnetic response of split-ring resonators at microwave frequencies" Opto-Electron. Rev. 14, 193 (2006).

E. Ozbay, I. Bulu, K. Guven, H. Caglayan, and K. Aydin, "Observation of negative refraction and focusing in two-dimensional photonic crystals", Japanese J. Appl. Phys. 45, 6064 (2006). [INVITED]

M. Gokkavas, K. Guven, I. Bulu, K. Aydin, R. S. Penciu, M. Kafesaki, C. M. Soukoulis, and E. Ozbay, "Experimental demonstration of a left-handed metamaterial operating at 100 GHz," Phys. Rev. B 73, 193103 (2006).

Koray Aydin, and E. Ozbay, "Negative refraction through an impedance matched left-handed metamaterial slab," J. Opt. Soc. Am. B 23, 415 (2006).
 

2005

K. Guven, K. Aydin, and E. Ozbay "Experimental analysis of true left-handed behavior and transmission properties of composite metamaterials", Photonics and Nanostruct. - Fund. Appl. 3, 75 (2005).

Koray Aydin, I. Bulu and E. Ozbay, "Focusing of electromagnetic waves by a left-handed metamaterial flat lens", Opt. Express 13, 8753 (2005).

I. Bulu, H. Caglayan, K. Aydin, and E. Ozbay, “Compact size highly directive antennas based on SRR metamaterial medium,” New J. Phys. 7, 223 (2005).

Koray Aydin, I. Bulu, K. Guven, M. Kafesaki, C. M. Soukoulis and E. Ozbay, “Investigation of magnetic resonances for different split-ring resonator parameters and designs,” New J. Phys. 7, 168 (2005).

Koray Aydin, K. Guven, C. M. Soukoulis and E. Ozbay, “Observation of negative refraction and negative phase velocity in left-handed metamaterials”, Appl. Phys. Lett. 86, 124102 (2005).

E. Ozbay, I. Bulu, K. Aydin, H. Caglayan, K. Guven, and Boratay K. Alici, “Highly directive radiation and negative refraction using photonic crystals,” Laser Phys. 15, 217 (2005). [INVITED]
 

2004

Koray Aydin, K. Guven, N. Katsarakis, C. M. Soukoulis, and E. Ozbay, “Effect of disorder on magnetic resonance band gap of split-ring resonator structures,” Opt. Express 12, 5896 (2004).

Koray Aydin, K. Guven, L. Zhang, M. Kafesaki, C. M. Soukoulis, and E. Ozbay, “Experimental observation of true left-handed transmission peak in metamaterials,” Opt. Lett. 29, 2623 (2004).

K. Guven, K. Aydin, K. B. Alici, C. M. Soukoulis, and E. Ozbay, “Spectral negative refraction and point focusing analysis of a two-dimensional left-handed photonic crystal lens,” Phys. Rev. B. 70, 205125 (2004).

E.Ozbay, K. Guven, E. Cubukcu, K. Aydin, and B. K. Alici, “Negative refraction and subwavelength focusing using photonic crystals,” Mod. Phys. Lett. B 18, 1275 (2004). [INVITED]

2003

E. Cubukcu, K. Aydin, S. Foteinopolou, C. M. Soukoulis, and E. Ozbay, “Subwavelength resolution in a two-dimensional photonic crystal based superlens,” Phys. Rev. Lett. 91, 207401 (2003).

Ekmel Ozbay, Koray Aydin, E. Cubukcu, M. Bayindir, “Transmission and reflection properties of composite double negative metamaterials in free space,” IEEE Trans. Antennas Propag. 51, 2592 (2003).

E. Cubukcu, K. Aydin, E. Ozbay, S. Foteinopoulou, and C. M. Soukoulis, “Electromagnetic waves: Negative refraction by photonic crystals,” Nature 423, 604 (2003).
 

2002

M. Bayindir, K. Aydin, E. Ozbay, P. Markos and C. M. Soukoulis, “Transmission properties of composite metamaterials in free space,” Appl. Phys. Lett. 81, 120 (2002).