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Visible and Ultraviolet Reflectivity of Hg0.8Cd0.2Te |
JIANG Run-qing;HU Xie-rong;FANG Jia-xiong1 |
Infrared and Remote Sensing Research Laboratory, Shandong University, Ji’ nan 250100
1Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083 |
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Cite this article: |
JIANG Run-qing, HU Xie-rong, FANG Jia-xiong 1996 Chin. Phys. Lett. 13 937-939 |
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Abstract The fundamental reflectivity spectra of Hg0.8Cd0.2Te have been investigated. The feature of the spectra is the presence of El and E2 peaks within the fundamental absorption region. A three dimensional saddle point is used to fit the El and El+ Δl critical point and some simulated calculation is done for E2 at X point. The measured and calculated reflectivities are compared and prominent features of the reflectivity spectra are identified with critical point transition at the and X points in the Brillouin zone.
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Keywords:
78.20.Ci
78.40.-q
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Published: 01 December 1996
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PACS: |
78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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78.40.-q
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(Absorption and reflection spectra: visible and ultraviolet)
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