Observation of two-phonon difference bands in the FIR transmission spectrum of Si期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Observation of two-phonon difference bands in the FIR transmission spectrum of Si

Affiliation:	1. Department of Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, PR China;2. Department of Pathology, Basic Medical College of Chongqing Medical University, 400016, PR China;3. Department of Reproductive Endocrinology, Chongqing Health Center for Women and Children, Chongqing 401147, PR China

Abstract:	The FIR transmission spectrum of Si has been measured between 100 and 400 cm⁻¹ by FTS at both 90 and 300 K. Weak absorption bands have been observed for the first time at 122 and 156 cm⁻¹ in addition to bands at 316 and 376 cm⁻¹ which have been reported before. The bands are assigned to two-phonon difference processes at the L, X and W points in the Brillouin zone.

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