Low-volume, fast response-time hollow silica waveguide gas cells for mid-IR spectroscopy

D Francis, J Hodgkinson, B Livingstone, P Black… - Applied …, 2016 - opg.optica.org
Hollow silica waveguides (HSWs) are used to produce long path length, low-volume gas
cells, and are demonstrated with quantum cascade laser spectroscopy. Absorption …

Long-wave infrared pulsed external-cavity QCL spectrometer using a hollow waveguide gas cell

D Francis, J Hodgkinson, RP Tatam - Optics Express, 2024 - opg.optica.org
A spectrometer built using an external cavity pulsed quantum cascade laser is described.
The spectrometer has a tuning range from 10–13 µm (1,000–769 cm^− 1) and is designed to …

Quantitative determination of loss properties of semiconductor laser beams propagating in hollow waveguides

L Yuan, S Meng, J Liu, K Tong, J Li… - IEEE Photonics …, 2022 - ieeexplore.ieee.org
The loss propertiesof semiconductor laser beams propagating in hollow waveguides
(HWGs) are crucial in several applications. The attenuation coefficient of the distributed …

CO and CO2 laser beam guiding with silver halide polycrystalline fibers and hollow waveguides

AS Novikov, I Usenov, V Artyushenko… - … Symposium on High …, 2022 - spiedigitallibrary.org
Silver halide polycrystalline infrared (PIR) fibers and hollow waveguides (HWGs) have high
transmission at midinfrared wavelengths from 3 to 18 μm. Their applications include a …