Urbanek, B. and Moeller, M. and Eisele, M. and Baierl, S. and Kaplan, D. and Lange, C. and Huber, R. (2016) Femtosecond terahertz time-domain spectroscopy at 36 kHz scan rate using an acousto-optic delay. APPLIED PHYSICS LETTERS, 108 (12): 121101. ISSN 0003-6951, 1077-3118
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We present a rapid-scan, time-domain terahertz spectrometer employing femtosecond Er:fiber technology and an acousto-optic delay with attosecond precision, enabling scanning of terahertz transients over a 12.4-ps time window at a waveform refresh rate of 36 kHz, and a signal-to-noise ratio of 1.7 x 10(5) / root Hz. Our approach enables real-time monitoring of dynamic THz processes at unprecedented speeds, which we demonstrate through rapid 2D thickness mapping of a spinning teflon disc at a precision of 10 nm/root Hz. The compact, all-optical design ensures alignment-free operation even in harsh environments. (C) 2016 AIP Publishing LLC.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | OPTICAL COHERENCE TOMOGRAPHY; LASER; GENERATION; PRECISION; DYNAMICS; FIELD; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Mar 2019 08:58 |
| Last Modified: | 26 Mar 2019 08:58 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3231 |
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