Carrier-Envelope Phase-Dependent Atomic Coherence and Its Detection Scheme

Qing Yang Xu, Xiangming Hu, J. W. Yin

Xiaoxue Yang, Ying Wu

The carrier-envelope phase (CEP) of few-cycle laser pulses is shown to have profound effects on the bound-state atomic coherence even in the weak-field regime where ionizations hardly take place, and a simple scheme is proposed to measure such CEP-dependent atomic coherence.

Ying Wu, Xiaoxue Yang

It is shown that the carrier-envelope phase (CEP) of few-cycle laser pulses has profound effects on the bound-state atomic coherence even in the weak-field regime where both tunneling and multiphoton ionization hardly take place. The atomic coherence thus produced is shown to be able to be mapped onto the CEP-dependent signal of quantum beats (and other quantum-interference phenomena) and hence might be used to extract information about and ultimately to measure the carrier-envelope phase.

Elijah Ogaro Nyakang’o

Yu. P. Malakyan, Dmitry Budker, Valeriy V. Yashchuk +3 more

Wen‐Xing Yang, Xiaoxue Yang, Ray‐Kuang Lee

By analyzing the interaction of a few-cycle laser pulse within an asymmetric semiconductor double quantum well structure, we show that the transient coherence thus produced is strongly dependent on the carrier-envelope-phase (CEP) and significantly enhanced due to the Fano-type interference. A method to determine the CEP is proposed by directly mapping the CEP dependent coherence to the quantum beat signals.