Title :
Tunable photonic bandgap devices based on Pb-La-Zr-Ti-O/Sr-Ti-O two dimensional multi-layers on GaAs substrates
Author :
Young, D. ; Linnik, M. ; Chow, A. ; Christou, A.
Author_Institution :
Mater. Sci. & Eng., Maryland Univ., College Park, MD, USA
Abstract :
Multiple-layer perovskite Pb0.91La0.09Zr0.65Ti0.35O3/SrTiO3 (PLZT/STO) heterostructures have been grown by pulsed laser deposition (PLD) on [001] MgO/GaAs substrates. The perovskite layers are single phase with 35nm RMS roughness on the top surface. Electrically induced birefringence in the PLZT layers, resulted in both optical phase and optical amplitude modulation. The application of an electric field across the PLZT layers resulted in optical modulation at both the primary and first harmonic frequencies, and direct evidence of the non-linear electro-optic effect.
Keywords :
birefringence; electro-optical effects; ferroelectric ceramics; ferroelectric thin films; lanthanum compounds; lead compounds; nonlinear optics; optical harmonic generation; photonic band gap; pulsed laser deposition; strontium compounds; surface topography; 35 nm; GaAs substrates; MgO-GaAs; PLZT layers; Pb-La-Zr-Ti-O/Sr-Ti-O; Pb0.91La0.09Zr0.65Ti0.35O3-SrTiO3; Pb0.91La0.09Zr0.65Ti0.35O3/SrTiO3; electrically induced birefringence; first harmonic frequencies; nonlinear electro-optic effect; optical amplitude modulation; optical phase modulation; primary frequencies; pulsed laser deposition; tunable photonic bandgap devices; two dimensional multi-layers; Gallium arsenide; Nonlinear optics; Optical modulation; Optical pulses; Photonic band gap; Pulsed laser deposition; Rough surfaces; Surface roughness; Tunable circuits and devices; Zirconium;
Conference_Titel :
Optoelectronic and Microelectronic Materials and Devices, 2000. COMMAD 2000. Proceedings Conference on
Print_ISBN :
0-7803-6698-0
DOI :
10.1109/COMMAD.2000.1022963
