Prospects of using quantum-cascade lasers in optoelectronic countermeasure systems: review

One of the most vulnerable issues in the technical protection of information is to obtain data via leakage through the opto-electronic channel. In this paper, studies of the protective capabilities of glass from laser sounding depending on its elemental composition were carried out using such indicators as the coefficients of reflection and absorption of the laser beam by the window glass. As a result of the work, an experimental installation based on a continuous solid-state laser was assembled. The study of the elemental composition of window glass, which is produced by modern industry, X-ray fluorescence method and the study of the coefficients of reflection and absorption of glass samples in the experimental setup showed that the studied window glass chemically belongs to quartz (silicate). All chemical elements involved in its formation can be divided into 3 groups: glass-forming, transitional, modifiers, which affects the optical properties of the studied glasses, as the elements used have different not only qualitative but also quantitative parameters. Absorption increases if the number of chemical elements that exhibit amphoteric and non-metallic properties and have (-charge) decreases, and increases if the number of chemical elements in the glass that exhibit the most alkaline, alkaline earth properties and in which the radius of cations (+ions) increases. Systematization of the elemental and quantitative composition of the studied window glass in accordance with the periods and groups of the periodic table of chemical elements, enabled the relationship between the electronic structure of chemical elements and the protective properties of glass

show abstract

“…In works [7,8], domestic scientists consider the issue of speech information protection from leakage by using an opto-electronic channel.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the protective capabilities of glass from laser sounding depending on its elemental composition

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In this way, the QCL market approached 341 million USD in 2019. 9 Quantum cascade lasers find broad application in molecular detection and imaging, 10,11,12 sensing of chemical vapors, 13,14 optoelectronic countermeasure systems, 15 defense and security 16 , and many other fields. Nevertheless, despite the widespread use of this technology, examples of QCL in ion spectroscopy are limited.…”

Section: Introductionmentioning

confidence: 99%

Application of continuous wave quantum cascade laser in combination with CIVP spectroscopy for investigation of large organic and organometallic ions

Gorbachev

Miloglyadova

Tsybizova

et al. 2021

Review of Scientific Instruments

View full text Add to dashboard Cite

Rapidly developing mid-infrared quantum cascade laser (QCL) technology gives easy access to broadly tunable mid-IR laser radiation at a modest cost. Despite several applications of QCL in the industry, its usage for spectroscopic investigation of synthetically relevant organic compounds has been limited. Here we report the application of an external cavity, continuous wave, mid-IR QCL to cryogenic ion vibrational predissociation spectroscopy (CIVP) to analyze a set of large organic molecules, organometallic complexes, and isotopically labeled compounds. The obtained spectra of test molecules are characterized by high signal-to-noise ratio and low FWHM-values, allowing the assignment of two compounds with just a few wavenumbers difference. Data generated by cw-QCL and spectra produced by another standard Nd:YAG DFG system are compared and discussed.

show abstract

“…Yet, another suggested protection method is an IR radiation-seeker missile jammer 18 . However, this active defensive system exhibits severe limitations due to the extreme standoff range of 100 -1,000 km and a high target velocity 22,23 . Huang et al proposed a combination of quick maneuvers with the deployment of IR decoys as a viable defense strategy 24 .…”

Section: Introductionmentioning

confidence: 99%

Toward on-board microchip synthesis of CdSe vs. PbSe nanocrystalline quantum dots as a spectral decoy for protecting space assets

Nijhuis

Tran

et al. 2021

React. Chem. Eng.

View full text Add to dashboard Cite

show abstract

Prospects of using quantum-cascade lasers in optoelectronic countermeasure systems: review

Cited by 29 publications

References 28 publications

Investigation of the protective capabilities of glass from laser sounding depending on its elemental composition

Investigation of the protective capabilities of glass from laser sounding depending on its elemental composition

Application of continuous wave quantum cascade laser in combination with CIVP spectroscopy for investigation of large organic and organometallic ions

Toward on-board microchip synthesis of CdSe vs. PbSe nanocrystalline quantum dots as a spectral decoy for protecting space assets

Contact Info

Product

Resources

About