Infra-red multi-mode absorption spectroscopy of acetylene using an Er/Yb:glass micro-laser.
Opt Express 16:7 (2008) 4437-4442
Abstract:
Multi-mode absorption spectroscopy, MUMAS, in the near-infra-red is reported for the first time. A diode laser pumped Er/Yb:glass micro-cavity laser emitting multiple longitudinal modes at 1.53 microm was used to detect several transitions in the nu(1)+nu(3) overtone band of C2H2.Multi-mode absorption spectroscopy of oxygen for measurement of concentration, temperature and pressure
APPL PHYS B-LASERS O 90:2 (2008) 205-211
Abstract:
The use of multi-mode absorption spectroscopy (MUMAS) to detect multiple transitions in the A-band b(1)Sigma(g) (+)-X-3 Sigma(-)(g) of molecular oxygen is reported. The modelling of MUMAS signatures and the procedure for fitting such model signatures to experimental data obtained using a multi-mode diode laser is described. The technique is shown to allow accurate and precise measurement of concentration, temperature over the range 300 to 500 K and of pressure over the range 0.2 to 1 bar. Extension of the technique to other ranges of temperature and pressure and to other species is discussed.A widely tunable, high power, single-mode laser for linear and nonlinear spectroscopy
MEASUREMENT SCIENCE AND TECHNOLOGY 19:1 (2008) ARTN 015603
Multi-mode absorption spectroscopy
OPTICS COMMUNICATIONS 281:9 (2008) 2561-2566
Measurement of nitric oxide concentration in a spark-ignition engine using degenerate four-wave mixing
Combustion and Flame 148 (2007) 223-233