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Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Continuous-wave far-infrared two-photon-pumped, single-photon-pumped, and Raman laser emission from 14NH3

G D Willenberg¹

¹Physikalisch-Technische Bundesanstalt, D-3300 Braunschweig, Germany.

|August 25, 2009

Abstract:

Continuous-wave laser emission has been obtained in (14)NH(3) by using different excitation techniques. Two-photon infrared-microwave pumping led to laser emission with offsets between the virtual level and a real level up to 3 GHz. Raman laser emission could be demonstrated with offsets between the virtual level and a real level tip to 0.56 GHz. A new coincidence between (14)NH(3) and N(2)O could be used to generate far-infrared laser emission by resonant single-photon pumping.

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Raman Spectroscopy: Overview

Raman Spectroscopy: Overview

The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...

Articles linked to this work by shared authors, journal, and citation graph.

Predictions of far-infrared laser lines from (14)NH(3) and (15)NH(3).

Optics letters·2009

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