Resonant second-harmonic generation in a GaAs photonic crystal waveguide

被引：48

作者：

Malvezzi, AM

Vecchi, G

Patrini, M

Guizzetti, G

Andreani, LC

Romanato, F

Businaro, L

Di Fabrizio, E

Passaseo, A

De Vittorio, M

机构：

[1] Univ Pavia, INFM, I-27100 Pavia, Italy

[2] Univ Pavia, Dipartimento Elettron, I-27100 Pavia, Italy

[3] Univ Pavia, Dipartimento Fis A Volta, I-27100 Pavia, Italy

[4] TASC, NNL, INFM, ELETTRA Synchrotron Light Source, I-34012 Trieste, Italy

[5] Univ Lecce, NNL, INFM, I-73100 Lecce, Italy

[6] Univ Lecce, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.68.161306

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Second-harmonic generation (SHG) measurements in reflection on a GaAs/Al0.25Ga0.75As photonic crystal waveguide show a resonant enhancement when the pump beam is frequency and momentum matched with the photonic modes in the slab. The enhanced SH signal is observed in the form of resonant peaks, unlike in linear reflectance spectra. The observations are in very good agreement with a full 3D calculation of the anisotropic mode dispersion in the photonic crystal slab. The present results open the way towards realizing the extraordinary enhancement of SHG which was recently predicted [A. R. Cowan and J. F. Young, Phys. Rev. B 65, 085106 (2002)], and also demonstrate the potential of SHG as a nonlinear spectroscopic tool for optical studies of photonic crystals.

引用

页数：4

共 31 条

[1] Photonic bands and gap maps in a photonic crystal slab [J].