Near-field localization of ultrashort optical pulses in transverse 1-D periodic nanostructures.

We present a transverse 1-D periodic nanostructure which exhibits lateral internal Thorneld localization for normally incident ultrashort pulses, and which may be applied to the enhancement of nonlinear optical phenomena. The peak intensity of an optical pulse propagating in the nanostructure is approximately 12 times that of an identical incident pulse propagating in a bulk material of the same refractive index. For second harmonic generation, an overall enhancement factor of approximately 10.8 is predicted. Modeling of pulse propagation is performed using Fourier spectrum decomposition and Rigorous Coupled-Wave Analysis (RCWA).

[1]  O. Bryngdahl,et al.  Comment on numerical stability of rigorous differential methods of diffraction , 1996 .

[2]  Thomas K. Gaylord,et al.  Stable implementation of the rigorous coupled-wave analysis for surface-relief gratings: enhanced transmittance matrix approach , 1995 .

[3]  John E. Sipe,et al.  Nonlinear optical susceptibilities of layered composite materials , 1994 .

[4]  Lifeng Li.  Formulation and comparison of two recursive matrix algorithms for modeling layered diffraction gratings , 1996 .

[5]  Jean-Paul Hugonin,et al.  Algorithm for the rigorous coupled-wave analysis of grating diffraction , 1994 .

[6]  R. Boyd,et al.  Accessing the optical nonlinearity of metals with metal- dielectric photonic bandgap structures. , 1999, Optics letters.

[7]  Dennis W. Prather,et al.  Design of binary subwavelength diffractive lenses by use of zeroth-order effective-medium theory , 1999 .

[8]  Boyd,et al.  Nonlinear susceptibility of composite optical materials in the Maxwell Garnett model. , 1992, Physical review. A, Atomic, molecular, and optical physics.

[9]  Y Fainman,et al.  Form-birefringent computer-generated holograms. , 1996, Optics letters.

[10]  P. Sheng,et al.  Third-order optical nonlinearity enhancement through composite microstructures , 1998 .

[11]  Enhancement of Optical Nonlinearity Through Anisotropic Microstructures , 1997, cond-mat/9711166.

[12]  Fischer,et al.  Enhanced nonlinear optical response of composite materials. , 1995, Physical review letters.

[13]  T. Gaylord,et al.  Diffraction analysis of dielectric surface-relief gratings , 1982 .

[14]  P. Sheng,et al.  Enhancement of optical nonlinearity through anisotropic microstructures , 1998 .

[15]  Y. Fainman,et al.  Design, fabrication, and characterization of form-birefringent multilayer polarizing beam splitter , 1997 .

[16]  Philippe Lalanne,et al.  High-order effective-medium theory of subwavelength gratings in classical mounting: application to volume holograms , 1998 .