Title :
MBE growth of low-optical-loss Cd1-xMnxTe magnetooptical waveguides on GaAs substrate
Author :
Zaets, Wadim ; Ando, Koji
Author_Institution :
Electrotech. Lab., Ibaraki, Japan
Abstract :
We report the growth of a low-loss Cdl-xMnxTe waveguide on GaAs (001) substrate by MBE method. Substrate cleaning with atomic hydrogen and amorphous Cd predeposition were used. During 5 min of cleaning at substrate temperature 400 °C the reflection high-energy electron diffraction (RHEED) pattern evolves from a dot pattern to streaky pattern. A high intensity RHEED pattern with more than 10 diffraction lines and without any 3D features were observed at the end of cleaning. The obtained magneto-optic figure-of-merit is 150 deg/dB under magnetic field of 5 kG, which is enough high for practical application
Keywords :
cadmium compounds; magneto-optical devices; manganese compounds; molecular beam epitaxial growth; optical fabrication; optical losses; optical waveguides; reflection high energy electron diffraction; semiconductor growth; semiconductor materials; surface cleaning; 400 degC; 5 min; CdMnTe; GaAs; GaAs (001) substrate; GaAs substrate; MBE growth; RHEED; amorphous Cd predeposition; atomic hydrogen; dot pattern; low-optical-loss Cd1-xMnxTe magnetooptical waveguides; magnetic field; magneto-optic figure-of-merit; reflection high-energy electron diffraction; streaky pattern; substrate cleaning; Amorphous materials; Cleaning; Diffraction; Electrons; Gallium arsenide; Hydrogen; Magnetic fields; Reflection; Tellurium; Temperature;
Conference_Titel :
LEOS '99. IEEE Lasers and Electro-Optics Society 1999 12th Annual Meeting
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-5634-9
DOI :
10.1109/LEOS.1999.811820
