| Citation: |
Wu Xiaojun, Huang Min, Chen Xiaoshu, Zhao Fuli, Jia Tianqing, Wang Gang, Xu Ningsheng. THz-Wave Generation and Detection from ZnSe Crystal Induced by a Femtosecond Laser[J]. Journal of Semiconductors, 2006, 27(8): 1412-1416.
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Wu X J, Huang M, Chen X S, Zhao F L, Jia T Q, Wang G, Xu N S. THz-Wave Generation and Detection from ZnSe Crystal Induced by a Femtosecond Laser[J]. Chin. J. Semicond., 2006, 27(8): 1412.
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THz-Wave Generation and Detection from ZnSe Crystal Induced by a Femtosecond Laser
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Abstract
We experimentally study THz generation and detection in 〈111〉 ZnSe samples using optical rectification and electro-optic sampling.A THz radiation pulse with a width of 113fs (full width at half maximum),results in a wideband THz spectrum near 5.8THz with a peak signal at 3THz.We also examine the dependence of the peak THz electric field on optica pump power.The generated peak electric field increase linearly with increasing optical pump power in the ZnSe sample with a clean surface,while for the sample with a carbon-sprinkled surface,the peak field exhibits a slow saturation behavior at powers greater than 250mW.It seems that the damages surface decreases the optical rectification efficiency.-
Keywords:
- THz,
- femtosecond laser,
- ZnSe,
- optical rectification,
- electro-optic sampling
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References
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Proportional views
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