A repository & source of cutting edge news about emerging terahertz technology, it's commercialization & innovations in THz devices, quality & process control, medical diagnostics, security, astronomy, communications, applications in graphene, metamaterials, CMOS, compressive sensing, 3d printing, and the Internet of Nanothings. NOTHING POSTED IS INVESTMENT ADVICE! REPOSTED COPYRIGHT IS FOR EDUCATIONAL USE.
Pages- Terahertz Imaging & Detection
▼
Monday, March 3, 2014
Abstract-Circularly polarized narrowband terahertz radiation from a eulytite oxide by a pair of femtosecond laser pulses
Phys. Rev. A
R. Takeda, N. Kida, M. Sotome, Y. Matsui, and H. Okamoto
We report on terahertz radiation induced by an optical rectification process in a non-centrosymmetric and insulating oxide, eulytite Bi4Ge3O12, at room temperature. The radiated terahertz pulse consists mainly of a temporal oscillation component with a frequency of 2.01 THz. The generation of this oscillation is ascribed to an increase in the effective generation length for the terahertz radiation up to about 2 mm at 2.01 THz. By using a pair of femtosecond laser pulses with an appropriate interval, polarization, and power, we succeeded in controlling the trajectory of the radiated terahertz wave. This method also enabled us to generate circularly polarized narrowband terahertz radiation with 2.01 THz
No comments:
Post a Comment
Please share your thoughts. Leave a comment.