VI. OptoelectronicsNo Access

TUNABLE COHERENT RADIATION FROM TERAHERTZ TO MICROWAVE BY MIXING TWO INFRARED FREQUENCIES IN A 47-MM-LONG GaSe CRYSTAL

WEI SHI

Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, PA 18015, USA

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and

YUJIE J. DING

Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, PA 18015, USA

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https://doi.org/10.1142/S0129156406003874Cited by:20 (Source: Crossref)

Abstract

By mixing two infrared radiations near 1 μm in a 47-mm-long GaSe crystal, we efficiently generated a monochromatic radiation which has frequency tunability from 4.51 THz down to 53 GHz. The highest peak power produced by us is 389 W at 203 μm (1.48 THz), which corresponds to the photon conversion efficiency of 19% (the power conversion efficiency of 0.098%).

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