The vast majority of gaseous chemical substances exhibit fundamental rovibrational
absorption bands in the mid-infrared spectral region (2.5–25 μm), and the absorption of light …

Power transformers are a central component in the field of energy distribution and
transmission. The early recognition of incipient faults in operating transformers is …

Infrared laser technology over the last decades has led to an increasing demand for optical
detectors with high sensitivity and a wide operative spectral range suitable for spectroscopic …

Two compact TDLAS sensor systems based on different structural optical cores were
developed. The two optical cores combine two recent developments, gallium antimonide …

A mid-infrared ethane (C 2 H 6) sensor based on a wavelength modulation spectroscopy
(WMS) technique was developed using a thermoelectrically cooled (TEC), continuous-wave …

A tunable diode laser absorption spectroscopy-based methane sensor, employing a dense-
pattern multi-pass gas cell and a 3.3 μm, CW, DFB, room temperature interband cascade …

In this paper, an end-to-end methane gas detection algorithm based on transformer and
multi-layer perceptron (MLP) for tunable diode laser absorption spectroscopy (TDLAS) is …

As a new form of energy, hydrogen (H2) has clean and green features, and the detection of
H2 has been a hot topic in recent years. However, the lack of suitable laser sources and the …

The development of a continuous wave, thermoelectrically cooled (TEC), distributed
feedback diode laser-based spectroscopic trace-gas sensor for ultra-sensitive and selective …

A vehicle-deployed parts-per-billion in volume (ppbv)-level off-axis integrated cavity output
spectroscopic (OA-ICOS) CH4/C2H6 sensor system was experimentally presented for …