Abstract
This paper reports on nonlinear optical investigations of 2D photonic crystals etched into GaAs/AlGaAs waveguides by means of second-harmonic generation (SHG) from the surface of the samples. 130-fs laser pulses from a tunable Ti:sapphire source at 800 nm and from an optical parametric oscillator in the range 1.4 to 1.6 micron have been chosen to excite SH signals in reflection and diffraction directions. The measured angles of diffracted second-harmonic beams agree with those predicted from nonlinear diffraction conditions. The intensities of the reflected and diffracted SH signals are measured by varying the angle of incidence, input polarization and wavelength. Their observed behavior reflects the GaAs crystalline symmetry and the photonic crystal structure, respectively. Moreover, the measured high diffraction-to-reflection intensity ratio suggests the possibility of tailoring the nonlinear response using diffraction modes.
Original language | English (US) |
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Title of host publication | 2003 IEEE/LEOS - Summer Topical Meeting |
Subtitle of host publication | Holey Fibers and Photonic Crystals |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 39-40 |
Number of pages | 2 |
ISBN (Electronic) | 0780379829, 9780780379824 |
DOIs | |
State | Published - 2003 |
Externally published | Yes |
Event | 2003 IEEE/LEOS - Summer Topical Meeting - Vancouver, Canada Duration: Jul 14 2003 → Jul 16 2003 |
Publication series
Name | LEOS Summer Topical Meeting |
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Volume | 2003-January |
ISSN (Print) | 1099-4742 |
Other
Other | 2003 IEEE/LEOS - Summer Topical Meeting |
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Country/Territory | Canada |
City | Vancouver |
Period | 07/14/03 → 07/16/03 |
Bibliographical note
Publisher Copyright:© 2003 IEEE.
Keywords
- Etching
- Gallium arsenide
- Nonlinear optics
- Optical diffraction
- Optical harmonic generation
- Optical pulse generation
- Optical waveguides
- Photonic crystals
- Signal generators
- Wavelength measurement
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering