期刊
APPLIED PHYSICS LETTERS
卷 85, 期 16, 页码 3360-3362出版社
AMER INST PHYSICS
DOI: 10.1063/1.1808232
关键词
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Field-resolved detection of ultrabroadband infrared pulses is implemented with GaSe crystals. Via phase matching, we extend the detectable frequency range toward the near infrared (lambda=2.5 mum) and directly record transform-limited pulses as short as 28 fs with a 3 dB bandwidth of 41 THz. The continuous tunability of the center frequency over a wide interval ranging from 31 THz to the far-infrared is demonstrated using thick sensors. (C) 2004 American Institute of Physics.
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