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Study of Optical Nonlinearity in Hydrogenated Amorphous Silicon Carbide Film |
XU Jun;CHEN Kunji;HUANG Xinfan;FENG Duan;ZHANG Dakui*;LI Qun*;WANG Wenyao*;QIU Peihua* |
Department of Physics and Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210008
*Shanghai Institute of Optical and Fine Mechanics, Academia Sinica, Shanghai 201800
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Cite this article: |
XU Jun, CHEN Kunji, HUANG Xinfan et al 1993 Chin. Phys. Lett. 10 151-154 |
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Abstract Hydrogenated amorphous silicon carbide (a-Sicx:H) films were prepared by glow discharge technique with gas mixture of silane (SiH4) and methan (CH4). The room-temperature optical bistability was demonstrated in uncoated a-SiCx:H films at the excitation wavelength about 532nm. The switch-on intensity of device is about 0.8 MW/cm2 and the switching time is in the nanosecond scale. The physical origin of the optical nonlin5arity in these materials is also discussed.
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Keywords:
42.65.Pc
78.65.Gb
61.40.+b
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Published: 01 March 1993
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