@inproceedings{d9a77b343c0f4a0489747418b8b84aee,
title = "Terahertz generation by difference frequency conversion of two single-frequency VECSELs in an external resonance cavity",
abstract = "We demonstrate a continuous wave, single frequency terahertz (THz) source based on parametric difference frequency generation within a nonlinear crystal located in an optical enhancement cavity. Two single-frequency VECSELs with emission wavelengths spaced by 6.8 nm are phase locked to the external cavity and are used as pump sources for the nonlinear down conversion. The emitting THz radiation is centered at 1.9 THz and has a linewidth of less than 100 kHz. The output power of the source exceeds 100 μW. We show that the THz source can be used as local oscillator to drive a receiver used in astronomy applications.",
keywords = "Frequency conversion, High power, Nonlinear optics, Single-frequency, Terahertz, VECSEL",
author = "Maik Scheller and Paul, {Justin R.} and Alexandre Laurain and Abram Young and Koch, {Stephan W.} and Moloney, {Jerome V.}",
year = "2014",
doi = "10.1117/12.2040399",
language = "English (US)",
isbn = "9780819498793",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
booktitle = "Vertical External Cavity Surface Emitting Lasers (VECSELs) IV",
note = "Vertical External Cavity Surface Emitting Lasers (VECSELs) IV ; Conference date: 02-02-2014 Through 04-02-2014",
}