Cui, Wei and Awan, Kashif Masud and Huber, Rupert and Dolgaleva, Ksenia and Menard, Jean-Michel (2022) Broadband and High-Sensitivity Time-Resolved THz System Using Grating-Assisted Tilted-Pulse-Front Phase Matching. ADVANCED OPTICAL MATERIALS, 10 (1): 2101136. ISSN 2195-1071,
Full text not available from this repository. (Request a copy)Abstract
A broadband and sensitive time-resolved terahertz (THz) configuration relying on noncollinear optical interactions is presented. This noncollinear scheme enables a higher THz generation and detection efficiency in nonlinear crystals. The concept relies on a pair of thick (2 mm) GaP crystals with a phase grating etched on their surface to achieve phase matching between a diffracted near-infrared pulse and a THz wave propagating at normal incidence. This system is compared to a standard collinear scheme based on thin (0.2 mm) crystals and, while both systems provide access to a spectral bandwidth extending up to 6.5 THz, it is found that the noncollinear configuration improves the THz signal by more than a factor of 400 and the dynamic range of the system by 30 dB at a frequency of 3 THz.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | OPTICAL RECTIFICATION; TERAHERTZ GENERATION; LASER-PULSES; DESIGN; SPECTROSCOPY; POWER; broadband; grating-assisted tilted-pulse-front phase matching; high-sensitivity; time-resolved terahertz system |
| 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: | 14 Sep 2022 09:42 |
| Last Modified: | 14 Sep 2022 09:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47452 |
Actions (login required)
 |
View Item |
