Development of Sealing Technology for Far-Infrared Multispectral ZnS Using Chalcogenide Glass Material

Chalcogenide Glass Materials for Integrated Infrared Photonics

Chalcogenide glasses (ChGs) are amorphous compounds containing the chalcogen elements (S, Se, Te) and exhibit wide infrared transparency windows. They are easy to synthesize in bulk and thin film forms and their compositional flexibility allows tuning of optical properties such as refractive index making them ideal for infrared photonics. We have studied the material attenuation in ChGs that ar...

Chalcogenide Glass Optical Waveguides for Infrared Biosensing

Due to the remarkable properties of chalcogenide (Chg) glasses, Chg optical waveguides should play a significant role in the development of optical biosensors. This paper describes the fabrication and properties of chalcogenide fibres and planar waveguides. Using optical fibre transparent in the mid-infrared spectral range we have developed a biosensor that can collect information on whole meta...

Far-Infrared Dielectric Function of Zincblende ZnS

The complex dielectric response function of zincblende ZnS is determined a t 300 K by dispersive Fourier transform spectroscopy. The frequency range studied, 150 to 450 cm-l, spans the frequency of the q = 0 transverse optic (TO) phonon mode. The frequency dependence of the anharmonic self-energy function T(Y) of the q = 0 TO phonon is calculated from these data. The features observed in the sp...

On-chip mid-infrared gas detection using chalcogenide glass waveguide

Methane detection in far infrared using multispectral IR camera

The article presents the problem of methane detection using multispectral IR camera. The project of such camera and some theoretical calculations regarding the possibility of methane detection are presented. The calculation of optical path: “camera-cloud of methane–background” were also shown. Verification of theoretical result will be made by laboratory measurement. Some result of methane dete...