Single-shot terahertz time-domain spectroscopy in pulsed high magnetic fields
- Rice Univ., Houston, TX (United States)
- Yokohama National Univ., Yokohama (Japan)
- The Univ. of Tokyo, Tokyo (Japan)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Tohoku Univ., Sendai (Japan)
Here, we have developed a single-shot terahertz time-domain spectrometer to perform optical-pump/terahertz-probe experiments in pulsed, high magnetic fields up to 30 T. The single-shot detection scheme for measuring a terahertz waveform incorporates a reflective echelon to create time-delayed beamlets across the intensity profile of the optical gate beam before it spatially and temporally overlaps with the terahertz radiation in a ZnTe detection crystal. After imaging the gate beam onto a camera, we can retrieve the terahertz time-domain waveform by analyzing the resulting image. To demonstrate the utility of our technique, we measured cyclotron resonance absorption of optically excited carriers in the terahertz frequency range in intrinsic silicon at high magnetic fields, with results that agree well with published values.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1352155
- Journal Information:
- Optics Express, Journal Name: Optics Express Journal Issue: 26 Vol. 24; ISSN 1094-4087; ISSN OPEXFF
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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