Lossless backward second-harmonic generation of extremely narrow subdiffractive beams in two-dimensional photonic crystals

Journal Article · Wed Sep 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.033805· OSTI ID:21456966

Nistor, C; Cojocaru, C; Trull, J ^[1]; Karle, T J; Raj, R ^[2]; Raineri, F ^[2]; Staliunas, K ^[1]

---

1. Universitat Politecnica de Catalunya, Departament de Fisica i Enginyeria Nuclear, Colom 11, E-08222 Terrassa (Spain)
2. Laboratoire de Photonique et de Nanostructures, Route de Nozay, F-91460 Marcoussis (France)

We report efficient second harmonic generation using extremely narrow beams (with diameter of the order of the wavelength) that propagate in the self-collimation (or nondiffractive) regime in a two-dimensional photonic crystal. We design and numerically test an AlGaAs photonic crystal membrane, where both fundamental and generated second harmonic beams propagate without diffraction and without out-of-plane losses. The characteristics of the generated second harmonic that is mainly propagating in the backward direction and the conversion efficiency of the proposed scheme are obtained by nonlinear finite-difference time-domain numerical simulations.

• OSTI ID: 21456966
• Journal Information: Physical Review. A, Vol. 82, Issue 3; Other Information: DOI: 10.1103/PhysRevA.82.033805; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM ARSENIDES
COMPUTERIZED SIMULATION
CONVERSION
CRYSTALS
GALLIUM ARSENIDES
HARMONIC GENERATION
MEMBRANES
NONLINEAR PROBLEMS
PHOTONS
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
BOSONS
ELEMENTARY PARTICLES
FREQUENCY MIXING
GALLIUM COMPOUNDS
MASSLESS PARTICLES
PNICTIDES
SIMULATION