Abstract

Continuously tunable and coherent radiation in the wide range 56.81618 µm (0.18–5.27 THz) has been achieved as a novel and promising terahertz source based on collinear phase-matched difference frequency generation in a GaSe crystal. This source has the advantages of high coherence, simplicity for tuning, simple alignment, and stable output. The peak output power for the terahertz radiation reaches 69.4 W at a wavelength of 196 µm (1.53 THz), which corresponds to a photon conversion efficiency of 3.3%. A simple optimization of the design can yield a compact terahertz source.

© 2002 Optical Society of America

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Corrections

Wei Shi, Yujie J. Ding, Nils Fernelius, and Konstantin Vodopyanov, "Efficient, tunable, and coherent 0.18–5.27-THz source based on GaSe crystal: erratum," Opt. Lett. 28, 136-136 (2003)
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-28-2-136

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