Direct determination of the two-photon absorption cross section by the intracavity laser spectroscopy method

Intensity Measurements and Collision-Broadening Coefficients for the Oxygen A Band Measured by Intracavity Laser Absorption Spectroscopy

“…With this technique, effective pathlengths of tens to hundreds of kilometers through the sample can be achieved, overcoming many of the sensitivity limitations noted above. By careful control of the ICLAS generation time t g 1 and data acquisition procedure (12), it is possible to carry out quantitative lineshape measurements, as has been demonstrated for water vapor (14,15), methane (16), and the (vЈ ϭ 2) 4 (vЉ ϭ 0) band of the O 2 b 4 X transition (␥ band) (17,18).…”

INTRACAVITY LASER ABSORPTION SPECTROSCOPY OF NO2 AND CH4 COOLED IN A SLIT JET SUPERSONIC EXPANSION

“…1 for a recent review). In consequence very weak absorption coefficient alpha can be detected and as alpha is proportional to the density of the absorber and to the intensity of the line, the ICLAS technique covers two major fields of a plications : detection of low densi of absorbers (radical [2], F pollutants [3] etc..) and observation o very weak absorption transitions ?forbidden transitions). In the past few years we have been mainly concerned with the study of overtone transitions in the visible range [I].…”

Plasmonic nanolaser for intracavity spectroscopy and sensorics

“…In laser physics, intracavity laser spectroscopy methods are known to have an extremely high sensitivity. 1 In these methods, an analyte is placed in the laser cavity. This analyte should absorb at the lasing wavelength.…”