Special Technologies Ltd.

Novosibirsk, Russia

Special Technologies Ltd.

Novosibirsk, Russia
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Kolker D.B.,Novosibirsk State University | Sherstov I.V.,Novosibirsk State University | Kostyukova N.Yu.,Novosibirsk State University | Boyko A.A.,Novosibirsk State University | And 2 more authors.
Quantum Electronics | Year: 2017

A combined optical parametric oscillator (OPO) with continuous tuning of the radiation wavelength in the spectral range 2.5-10.8 μm, optically pumped with the radiation from a Q-switched Nd:YLF laser (1.053 μm), is developed and tested. The oscillation is provided by an OPO1 based on a MgO:PPLN 'fan-out' structure in the spectral region 2.5-4.5 μm and by an OPO2 based on HgGa2S4 nonlinear crystals in the spectral region 4.18-10.8 μm, respectively. The angles of phase matching are measured for the HgGa2S4 crystals in the spectral range 4.18-10.8 μm for the type II conversion (eo-e), which virtually coincide with the calculated ones. The experimental absorption spectra of a gas mixture in the range 2.5-10.8 μm obtained using a gas-filled sealed-off photoacoustic cell are presented. © 2017 Kvantovaya Elektronika and Turpion Ltd.


Boyko A.A.,Special Technologies Ltd | Karapuzikov A.I.,RAS Institute of Laser Physics | Chernikov S.B.,RAS Institute of Laser Physics | Spitcin V.V.,RAS Institute of Laser Physics | And 8 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2014

We report automated waveguide RF excited 13C16O2 - laser based on Z-shaped resonant cavity. The laser possesses possibility of wavelength tuning from 9.5 to 11.5 μm by means of the cavity's diffraction grating position management. The diffraction grating position is driven by precision motorized linear actuator. The lasing lines of P-branch from 11.04 to 11.31 μm were studied in details. Operating mode selection is performed with specially designed PC software "Tunable CO2 - Laser". P-branch 11P(10) - 11P(32) lines' tuning time does not exceed 3 sec. © 2014 SPIE.


Kostyukova N.Y.,Novosibirsk State Technical University | Kolker D.B.,Novosibirsk State University | Zenov K.G.,Special Technologies Ltd | Boyko A.A.,Novosibirsk State Technical University | And 3 more authors.
Laser Physics Letters | Year: 2015

We demonstrate an optical parametric oscillator based on two HgGa2S4 crystals with an extremely wide tuning range from 4.2 to 10.8 μm. The HgGa2S4 optical parametric oscillator was pumped by a Q-switched nanosecond Nd : YLF laser at 1.053 μm. The absorption spectrum of ammonia was presented to demonstrate the feasibility of the developed optical parametric oscillator system for spectroscopic measurements and gas detection. © 2015 Astro Ltd.


Boyko A.A.,Special Technologies Ltd. | Karapuzikov A.I.,RAS Institute of Laser Physics | Chernikov S.B.,RAS Institute of Laser Physics | Spitcin V.V.,RAS Institute of Laser Physics | And 3 more authors.
Proceedings - 2016 International Conference Laser Optics, LO 2016 | Year: 2016

Possibility of obtaining the pulse-periodic lasing mode with 100% modulation at pulse repetition rates from 10 kHz to 60 kHz is reported. © 2016 IEEE.


Marchev G.,Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy | Reza M.,Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy | Reza M.,University of Pavia | Badikov V.,Kuban State University | And 15 more authors.
Applied Optics | Year: 2014

We compare linear, planar ring, and rotated image singly resonant twisted rectangle (RISTRA) type nanosecond optical parametric oscillator cavities using HgGa2S4 nonlinear crystal pumped by 8 ns pulses at 1064 nm from a low beam quality pump source. The input-output characteristics and the output idler beam quality at 6300 nm are compared for two values of the pump beam diameter presenting different cavity Fresnel numbers and magnitudes of the spatial walk-off effect due to birefringence. The RISTRA cavity ensures in all cases a circular output beam profile but is advantageous in terms of beam quality with respect to the planar ring only at a large pump beam diameter. © 2014 Optical Society of America.


Kolker D.B.,Novosibirsk State Technical University | Starikova M.K.,Novosibirsk State Technical University | Pustovalova R.V.,Institute of Laser Physics | Karapuzikov A.I.,Institute of Laser Physics | And 3 more authors.
Instruments and Experimental Techniques | Year: 2012

An optical parametric oscillator (OPO) with double-pass pump based on MgO:PPLN and PPLN periodic structures is described. A compact nanosecond Nd:YLF laser has been used as a pump source at 1.053 μm (the pumping pulse duration is 5-7 ns at a maximum pulse energy of 300 μJ at frequencies of 1-7 kHz). The oscillation threshold of the OPO based on MgO:PPLN was varied in a range of 11-28 μJ at wavelength of 2.1-4.3 μm. The conversion efficiency from the pump wave to an idler wave decreased from 8.6 to 2.5% in the range of 2.0-4.3 μm. For PPLN-OPO the measured threshold was 36 μJ at 4.2 μm and 49 μJ at 4.7 μm. The conversion efficiency of the pump energy into the energy of an idler wave was 3.3-0.4% at wavelengths of 4.2-4.7 μm. © Pleiades Publishing, Ltd., 2012.


Karapuzikov A.A.,Special Technologies Ltd. | Sherstov I.V.,Special Technologies Ltd. | Kolker D.B.,Novosibirsk State Technical University | Karapuzikov A.I.,Special Technologies Ltd. | And 12 more authors.
Physics of Wave Phenomena | Year: 2014

A laser gas analyzer has been designed for determining the composition of exhaled air by means of photoacoustic spectroscopy. The analyzer, based on a broadband optical parametric oscillator and photoacoustic detector, provides high-precision rapid analysis of the multicomponent composition of human exhaled air for dynamic estimation of the efficiency of treating bronchus and lung diseases. © 2014 Allerton Press, Inc.


Kistenev Y.V.,Siberian State Medical University | Karapuzikov A.I.,Special Technologies Ltd. | Kostyukova N.Y.,Special Technologies Ltd. | Starikova M.K.,Special Technologies Ltd. | And 7 more authors.
Journal of Biomedical Optics | Year: 2015

A human exhaled air analysis by means of infrared (IR) laser photoacoustic spectroscopy is presented. Eleven healthy nonsmoking volunteers (control group) and seven patients with chronic obstructive pulmonary disease (COPD, target group) were involved in the study. The principal component analysis method was used to select the most informative ranges of the absorption spectra of patients' exhaled air in terms of the separation of the studied groups. It is shown that the data of the profiles of exhaled air absorption spectrum in the informative ranges allow identifying COPD patients in comparison to the control group. ©2015 Society of Photo-Optical Instrumentation Engineers (SPIE).


PubMed | Special Technologies Ltd., Novosibirsk State University and Siberian State Medical University
Type: Journal Article | Journal: Journal of biomedical optics | Year: 2015

A human exhaled air analysis by means of infrared (IR) laser photoacoustic spectroscopy is presented. Eleven healthy nonsmoking volunteers (control group) and seven patients with chronic obstructive pulmonary disease (COPD, target group) were involved in the study. The principal component analysis method was used to select the most informative ranges of the absorption spectra of patients exhaled air in terms of the separation of the studied groups. It is shown that the data of the profiles of exhaled air absorption spectrum in the informative ranges allow identifying COPD patients in comparison to the control group.


Kistenev Y.V.,Siberian State Medical University | Borisov A.V.,Siberian State Medical University | Kuzmin D.A.,Siberian State Medical University | Bulanova A.A.,Siberian State Medical University | And 3 more authors.
Progress in Biomedical Optics and Imaging - Proceedings of SPIE | Year: 2016

The results of measuring of biomarkers in breath air of patients with broncho-pulmonary diseases using wide-band frequency tuning IR laser photo-acoustic spectroscopy and the methods of data mining are presented. We will discuss experimental equipment and various methods of intellectual analysis of the experimental spectra in context of above task. The work was carried out with partial financial support of the FCPIR contract No 14.578.21.0082 (ID RFMEFI57814X0082). © 2016 SPIE.

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