Frontiers of Optoelectronics, 2018, 11 (4): 407–412, 网络出版: 2019-01-10
Proposal for CEP measurement based on terahertz air photonics
Proposal for CEP measurement based on terahertz air photonics
ultrafast measurements far-infrared or terahertz ultrafast nonlinear optics harmonic generation and mixing
摘要
Abstract
Single-shot carrier envelope phase (CEP) measurement is a challenge in the research field of ultrafast optics. We theoretically investigate how an intense terahertz pulse modulates second harmonic emission (SH) from a gas plasma induced by a few-cycle laser pulse (FCL). Results show that the modulation quantity of SH intensity has a cosinoidal dependence on the CEP of FCL pulses, based on which we propose a low energy, alloptical method for single-shot CEP measurements via using a known intense terahertz pulse. Moreover, we propose an experimental realization.
, , , , . Proposal for CEP measurement based on terahertz air photonics[J]. Frontiers of Optoelectronics, 2018, 11(4): 407–412. Kejia WANG, Xinyang GU, Jinsong LIU, Zhengang YANG, Shenglie WANG. Proposal for CEP measurement based on terahertz air photonics[J]. Frontiers of Optoelectronics, 2018, 11(4): 407–412.