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Ultraviolet laser-induced voltages in LaSrAlO4 single crystal |
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| Authors: | Lü Zhi-Qing Zhao Kun Zhao Hui Zhao Song-Qing Zhou Qing-Li |
| Institution: | [1]Department of Mathematics and Physics, China University of Petroleum, Beijing 102249, China [2]State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China [3]Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China [4]Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Department of Physics, Capital Normal University, Beijing 100048, China |
| Abstract: | Laser-induced ultrafast photovoltaic effect is observed in LaSrAlO4 single crystal at ambient temperature without any applied bias. An open-circuit photovoltage is obtained when the wafer is irradiated by a 248-nm-KrF laser pulse of 20~ns duration. The response time and full width at half maximum of the photovoltage pulse are 6~ns and 19~ns, respectively, indicating that LaSrAlO4 single crystal has potential application in ultraviolet detector. |
| Keywords: | photovoltaic effect LaSrAlO4 single crystal |
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