Tunable diode laser absorption spectroscopy (TDLAS) has been widely employed in atmospheric trace gases detection. In th......

The wavelength modulation indices are measured based on harmonic amplitude ratio of 4f_(amp)/6f_(amp) (4f_(amp) and 6f_(......

Behaviors of harmonic signals in wavelength modulation spectroscopy (WMS) for gas detection with Lorentzian line under h......

We experimentally demonstrate a simple modulation-free scheme for offset locking the frequency of a laser using buffer g......

We establish a single diode laser sensor system to obtain temperature and water concentration in CH4/air premixed flame.......

An adaptive filter for cancelling noise contained in the direct absorption spectra is reported. This technique takes adv......

We develop a self-adaptive algebraic tomography algorithm (SAATA) to investigate the simultaneous reconstruction of conc......

Tunable diode laser based gas detectors are now being used in a wide variety of applications for safety and environmenta......

A CO2 sensor for capnography, based on a hollow...

A novel measurement system for the gas density based on spectrum absorption is studied in details. Based on the theory o......

Tunable diode laser absorption spectroscopy (TDLAS) is a new method to detect trace-gas qualitatively or quantificationa......

Measurements of the excitation power-dependence and temperature-dependence photoluminescence (PL) are performed to inves......

Operating a laser diode in an external cavity, which provides frequency-selective feedback, is a very effective method t......