Analytical Applications of Broadly Tunable Lasers
Tuesday, March 13th, 2012
8:00 AM Room: 308A
Richard A Crocombe, Thermo Fisher Scientific and Mark A Druy, Physical Sciences Inc
In recent years, virtually all mid-infrared spectroscopy has been performed using interferometers and black-body-type sources. Mid-infrared lasers have traditionally been limited to very small (a few wavenumbers) tuning ranges. However, recent advances in solid-state laser technology have enabled the development of widely tunable devices, covering hundreds of wavenumbers, and approaching the whole of the traditional mid-infrared fingerprint region. These lasers have the inherent advantages of very bright, diffraction-limited beams, with obvious applications in stack emissions, remote sensing, fenceline monitoring, as well as laboratory applications like microscopy and imaging.
The technologies employed include quantum cascade lasers (QCLs), optical parametric oscillators (OPOs), sum-difference techniques, and broad-band gain media with internal and external tuning elements.
This Organized Contributed Session brings together the developers of these technologies and instruments with those pioneering their analytical applications.