【摘 要】
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The negative nonlinear index of a semiconductor saturable absorber mirror (SESAM) was investigated by using the reflection Z-scan technique. This is an experime
【机 构】
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Ultrafast Laser Laboratory, College of Precision Instrument & Optoelectronics Engineering, Tianjin U
论文部分内容阅读
The negative nonlinear index of a semiconductor saturable absorber mirror (SESAM) was investigated by using the reflection Z-scan technique. This is an experimental demonstration, for the first time to our knowledge, thatthe SESAM possesses comparable negative nonlinear index n2 = -2.35 × 10-10 esu, which may have importantimplications in design and alignment of Kerr-lens mode-locking based on the self-focusing effect.
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