Ultraviolet laser-induced voltages in LaSrAlO4 single crystal

• 来源期刊: 中国物理B（英文版）
• 关键词: photovoltaic effect LaSrAlO4 single crystal
• 年，卷（期）: 2009,（10）
• 页码范围: 4521-4523
• 页数: 3页
• 语种: 英文

摘要

Laser-induced ultrafast photovoltaie effect is observed in LaSrA104 single crystal at ambient temperature withoutany applied bias. An open-circuit photovoltage is obtained when the wafer is irradiated by a 248-nm-KrF laser pulseof 20 as duration. The response time and full width at half maximum of the photovoltage pulse are 6 as and 19 ns,respectively, indicating that LaSrAlO4 single crystal has potential application in ultraviolet detector.