GaSe crystals for broadband terahertz wave detection

Liu, Kai; Xu, Jingzhou; Zhang, X.-C.
August 2004
Applied Physics Letters;8/9/2004, Vol. 85 Issue 6, p863
Academic Journal
We report experimental results of using GaSe crystals for the broadband detection of terahertz (THz) waves from 100 GHz to 30 THz. In comparison, the THz wave field amplitude measured with a GaSe crystal exceeds that detected by a ZnTe crystal with a comparable detection bandwidth. The central frequency is tunable by varying the angle between the incident THz radiation and the crystal surface normal.


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