Jiaqi Nie, Huan Zhao, Yan Zhang. Broadband Terahertz Spectroscopy System Based on Difference Frequency Generation in GaSe Crystal[J]. Laser & Optoelectronics Progress, 2020, 57(7): 073001
- Laser & Optoelectronics Progress
- Vol. 57, Issue 7, 073001 (2020)
Fig. 1. Broad-spectrum THz system based on GaSe crystal
Fig. 2. Characterization of THz transient electric field. (a) Autocorrelation signal; (b) corresponding spectrum
Fig. 3. Comparison of signals before and after application of uracil samples. (a) Autocorrelation signal; (b) corresponding spectrum
Fig. 4. Absorption spectra of samples. (a) Uracil, (b) 5-bromouracil; (c) thymine
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