太赫兹辐射
极化(电化学)
激光器
飞秒
物理
Crystal(编程语言)
光学
化学
计算机科学
物理化学
程序设计语言
作者
Anton Sinko,N. V. Surovtsev,A.V. Kargovsky,Н. А. Николаев,В. Л. Маноменова,N. N. Kozlova,Е. Б. Руднева,А. Э. Волошин,A. P. Shkurinov
出处
期刊:IEEE Transactions on Terahertz Science and Technology
[Institute of Electrical and Electronics Engineers]
日期:2023-09-01
卷期号:13 (5): 526-538
被引量:1
标识
DOI:10.1109/tthz.2023.3286662
摘要
The present article studies narrow-band terahertz (THz) emission stimulated by femtosecond laser pulse in molecular crystal guanylurea hydrogen phosphite (NH $_{2})_{2}$ CNHCO(NH $_{2}$ )H $_{2}$ PO $_{3}$ (GUHP). We demonstrate that this emission is closely connected with the excitement of high-quality phonon oscillations in the crystal, which is proved by the temperature dynamics of the spectra and DFT calculations. For the purposes of studying the origin of this stimulated THz emission and creation of the adequate model of the phenomenon, we analyzed the polarization sensitive spectra of spontaneous Raman scattering and THz transmission spectra while considering their polarization features in relation to crystallographic axes of GUHP crystal. In this article, we show that molecular crystals provide an effective means to convert vis-NIR laser light regardless of wavelength into the THz frequency range. This approach can lead to the creation of “laser-like” source with the desired THz frequency for a range of medical, scientific, and technological applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI