Phase-Insensitive Scattering of Terahertz Radiation
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-01-31 |
| Journal | Photonics |
| Authors | Mihail Petev, Niclas Westerberg, E. Rubino, Daniel Moss, A. Couairon |
| Institutions | Technion ā Israel Institute of Technology, Centre National de la Recherche Scientifique |
| Citations | 5 |
Abstract
Section titled āAbstractāThe nonlinear interaction between Near-Infrared (NIR) and Terahertz pulses is principally investigated as a means for the detection of radiation in the hardly accessible THz spectral region. Most studies have targeted second-order nonlinear processes, given their higher efficiencies, and only a limited number have addressed third-order nonlinear interactions, mainly investigating four-wave mixing in air for broadband THz detection. We have studied the nonlinear interaction between THz and NIR pulses in solid-state media (specifically diamond), and we show how the former can be frequency-shifted up to UV frequencies by the scattering from the nonlinear polarisation induced by the latter. Such UV emission differs from the well-known electric field-induced second harmonic (EFISH) one, as it is generated via a phase-insensitive scattering, rather than a sum- or difference-frequency four-wave-mixing process.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2005 - THz imaging and sensing for security applicationsāExplosives, weapons and drugs [Crossref]
- 2009 - Laser-based standoff detection of explosives: A critical review [Crossref]
- 2007 - Cutting-edge terahertz technology [Crossref]
- 1996 - Optical second-harmonic probe for silicon millimeter-wave circuits [Crossref]
- 1998 - Detection of freely propagating terahertz radiation by use of optical second-harmonic generation [Crossref]
- 2006 - Detection of Broadband Terahertz Waves with a Laser-Induced Plasma in Gases [Crossref]
- 2008 - Coherent heterodyne time-domain spectrometry covering the entire āterahertz gapā [Crossref]
- 2013 - Spectrally resolved wave-mixing between near- and far-infrared pulses in gas [Crossref]
- 2015 - Broadband field-resolved terahertz detection via laser induced air plasma with controlled optical bias [Crossref]