Laser pulse amplitude changes induced by terahertz waves under linear electro-optic effectстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 июня 2014 г.
Аннотация:Changes in the amplitude of femtosecond laser pulses and in the energy of terahertz wave radiation
induced during their co-propagation in ZnTe and GaP crystals are studied theoretically and
experimentally. The results show that variation of the optical field amplitude leads to changes in
the laser pulse energy and spectrum shift. We investigate the quantitative correlations between
variations of the optical pulse energy, spectrum, phase and terahertz radiation energy. The values
of laser pulse energy change and spectrum shift are proportional to the first time derivative of the
magnitude of terahertz electric field, which enables coherent electro-optic detection. A simple and
convenient calibration technique for terahertz energy detectors based on the correlation between
laser and terahertz energy changes is proposed and tested.