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 (λ=2.5 μm) 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. © 2004 American Institute of Physics.
CITATION STYLE
Kübler, C., Huber, R., Tübel, S., & Leitenstorfer, A. (2004). Ultrabroadband detection of multi-terahertz field transients with GaSe electro-optic sensors: Approaching the near infrared. Applied Physics Letters, 85(16), 3360–3362. https://doi.org/10.1063/1.1808232
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