THz generation from optical rectification tilted-pulse-front pumping scheme with laser pulse focused to a line

Hai-Wei Du; Hiromichi Hoshina; Chiko Otani

doi:10.1117/12.2199229

15 October 2015 THz generation from optical rectification tilted-pulse-front pumping scheme with laser pulse focused to a line

Hai-Wei Du, Hiromichi Hoshina, Chiko Otani

Author Affiliations +

Proceedings Volume 9671, AOPC 2015: Advances in Laser Technology and Applications; 96710M (2015) https://doi.org/10.1117/12.2199229
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

In this study, we investigate THz pulses generated from optical rectification with tilted-pulse-front pumping scheme in which the laser beam is focused to a line in a stoichiometric lithium niobate (sLN) crystal. A cylindrical lens and a common lens are used to focus the pump laser beam to a line. The power law of THz pulse generation and the redshift induced from the sLN crystal are measured. The spectral shapes of the laser pulse are changed by inserting a filter into the pump laser beam, causing the THz radiation to change. The filter is a metal wire with 2 mm diameter. Experimental results show that this method can change the generated THz time waveforms but not their spectra. Such method offers a simple means to change and manipulate THz field generated from optical rectification with tiled-pulse-front pumping scheme.

Citation Download Citation

Hai-Wei Du, Hiromichi Hoshina, and Chiko Otani "THz generation from optical rectification tilted-pulse-front pumping scheme with laser pulse focused to a line", Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 96710M (15 October 2015); https://doi.org/10.1117/12.2199229

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