Related Experiment Video
Updated: Jun 20, 2026

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
Published on: April 28, 2016
Abstract:
We report the first known observation of lasing in NH (3) on the aP(6, 2) transition at 12.26 microm. Emission is obtained by pumping the aR(4, 2) line with the P(34) 9-microm CO(2) laser line. The frequency offset between pump and absorption line center is 5.16 GHz. This pump-emission pair was chosen to minimize the effects of ac Stark shifts and population transfer and allows us to study the Raman processes occurring in this type of optically pumped laser. We have confirmed that lasing takes place by a Raman process and obtained good agreement between theory and experimental measurements of small-signal gain.
More Related Videos
06:54Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model
Published on: August 22, 2015
06:15Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications
Published on: June 16, 2023
Related Concept Videos
Raman Spectroscopy Instrumentation: Overview
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
Raman Spectroscopy: Overview
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...