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Papers by Mikhail Inochkin

2016 International Conference Laser Optics (LO), 2016

The term “Super Pulse” (SP) was initially coined to describe certain regimes of a specially desig... more The term “Super Pulse” (SP) was initially coined to describe certain regimes of a specially designed CO2 laser [1]. In general, it refers to a mode of operation of a laser when laser emission is produced in a series of pulses with peak power significantly higher than average emitted power and with repetition rate significantly higher than that of “normal” pulsed operation. Until recently, diode lasers were not available in the SP mode, which limited soft-tissue surgical capabilities of such systems compared with CO2 and solid-state-based systems.

AIP Conference Proceedings, 2001

Laser excited pulsed, electron beam systems that operate at energies from 1 MeV up to 5 MeV and p... more Laser excited pulsed, electron beam systems that operate at energies from 1 MeV up to 5 MeV and pulse width from 0.1 to 100 ps are described. The systems consist of a high voltage pulser and a coaxial laser triggered gas or liquid spark gap. The spark gap discharges into a pulse forming line designed to produce and maintain a flat voltage pulse for 1 ns duration on the cathode of a photodiode. A synchronized laser is used to illuminate the photocathode with a laser pulse to produce an electron beam with very high brightness, short duration and current at or near the space charge limit. Operation of the system is described and preliminary test measurements of voltages, synchronization and jitter are presented for a 5 MeV system. Applications in chemistry, and accelerator research are briefly discussed.

2014 International Conference Laser Optics, 2014

A compact Nd:YAG laser with pulse energy more than 700mJ at 1064nm wavelength with individual spi... more A compact Nd:YAG laser with pulse energy more than 700mJ at 1064nm wavelength with individual spike duration less than 0.8ns was build. Supershort-term quasiperiodic Q-modulation of laser cavity was used for generation of stable subnanosecond pulses.

2016 International Conference Laser Optics (LO), 2016

Different schematics of compact Nd:YAG laser system capable to generate sub-nanosecond output pul... more Different schematics of compact Nd:YAG laser system capable to generate sub-nanosecond output pulses with energy up to 1J are described. Trade-offs and advantages of different laser schematics are discussed.

Journal Scientific and Technical Of Information Technologies, Mechanics and Optics, 2018

Journal Scientific and Technical Of Information Technologies, Mechanics and Optics, 2018

Cette invention concerne un dispositif qui repose, pour le traitement de la peau d'un patient... more Cette invention concerne un dispositif qui repose, pour le traitement de la peau d'un patient, sur l'emploi d'une lampe et qui est plus efficace que des dispositifs et des procedes analogues utilises jusqu'ici pour divers traitements dermatologiques. L'efficacite accrue de ce dispositif est attribuable a de moindres fuites photoniques et autres ameliorations. L'invention concerne egalement divers progres en ce qui concerne les guides d'onde utilises pour le traitement optique de la peau.

L'invention concerne un circuit d'alimentation ou d'attaque destine a une lampe-eclai... more L'invention concerne un circuit d'alimentation ou d'attaque destine a une lampe-eclair alimentee par impulsions, utilisant un composant a deux conducteurs a bobinages communs comme inducteur a decharge d'arc et comme declencheur d'eclair pour la lampe. La decharge d'un condensateur par l'inducteur et la lampe est controlee par un commutateur a grande vitesse a semi-conducteurs qui est mis en mode marche et arret par une commande adaptee, le courant circulant depuis l'inducteur par une voie unique comprenant la lampe lorsque le commutateur est en mode arret. La commande permet de maintenir le taux de variation de courant dans la lampe a une valeur moyenne sensiblement constante.

Journal Scientific and Technical Of Information Technologies, Mechanics and Optics, 2018

Journal Scientific and Technical Of Information Technologies, Mechanics and Optics, 2018

Optical and Quantum Electronics, 2017

We developed gigawatt laser system on diode-pumped Nd:Cr:YAG microchip sub-nanosecond laser and l... more We developed gigawatt laser system on diode-pumped Nd:Cr:YAG microchip sub-nanosecond laser and lamp pumped Nd:YAG multistage amplifier. Pulse energy up to 1 J with pulse duration of 0.7 ns at the wavelength of 1064 nm was achieved with very good beam quality. We demonstrated good agreement of computer simulation and experimental data.

Soviet Journal of Quantum Electronics, 1987

Journal of Optical Technology, 2010

The lasing of an Er:YLF laser has been theoretically and experimentally investigated at wavelengt... more The lasing of an Er:YLF laser has been theoretically and experimentally investigated at wavelengths 2.66, 2.71, and 2.81 m in the pulsed-periodic regime under selective pumping by laser-diode radiation at 0.98 m. A substantial variation of the delays of the beginning of lasing at the individual wavelengths is observed, depending on the pump-pulse-repetition rate, along with loss of the lasing at wavelengths 2.66 and 2.71 m as the pulse-repetition rate increases.

Journal of Optical Technology, 2012

ABSTRACT This paper describes an experimental study of the lasing of an Er:YLF laser at wavelengt... more ABSTRACT This paper describes an experimental study of the lasing of an Er:YLF laser at wavelengths 2.66, 2.71, and 2.81 µm under selective pumping by the radiation of laser diodes at wavelength 0.98 µm and passive Q-switching of the cavity by a shutter based on an Fe2+:ZnSe crystal. Single pulses are obtained with energy 3 mJ and width 30 ns at wavelength 2.81 µm.

2016 International Conference Laser Optics (LO), 2016

The term “Super Pulse” (SP) was initially coined to describe certain regimes of a specially desig... more The term “Super Pulse” (SP) was initially coined to describe certain regimes of a specially designed CO2 laser [1]. In general, it refers to a mode of operation of a laser when laser emission is produced in a series of pulses with peak power significantly higher than average emitted power and with repetition rate significantly higher than that of “normal” pulsed operation. Until recently, diode lasers were not available in the SP mode, which limited soft-tissue surgical capabilities of such systems compared with CO2 and solid-state-based systems.

AIP Conference Proceedings, 2001

Laser excited pulsed, electron beam systems that operate at energies from 1 MeV up to 5 MeV and p... more Laser excited pulsed, electron beam systems that operate at energies from 1 MeV up to 5 MeV and pulse width from 0.1 to 100 ps are described. The systems consist of a high voltage pulser and a coaxial laser triggered gas or liquid spark gap. The spark gap discharges into a pulse forming line designed to produce and maintain a flat voltage pulse for 1 ns duration on the cathode of a photodiode. A synchronized laser is used to illuminate the photocathode with a laser pulse to produce an electron beam with very high brightness, short duration and current at or near the space charge limit. Operation of the system is described and preliminary test measurements of voltages, synchronization and jitter are presented for a 5 MeV system. Applications in chemistry, and accelerator research are briefly discussed.

2014 International Conference Laser Optics, 2014

A compact Nd:YAG laser with pulse energy more than 700mJ at 1064nm wavelength with individual spi... more A compact Nd:YAG laser with pulse energy more than 700mJ at 1064nm wavelength with individual spike duration less than 0.8ns was build. Supershort-term quasiperiodic Q-modulation of laser cavity was used for generation of stable subnanosecond pulses.

2016 International Conference Laser Optics (LO), 2016

Different schematics of compact Nd:YAG laser system capable to generate sub-nanosecond output pul... more Different schematics of compact Nd:YAG laser system capable to generate sub-nanosecond output pulses with energy up to 1J are described. Trade-offs and advantages of different laser schematics are discussed.

Journal Scientific and Technical Of Information Technologies, Mechanics and Optics, 2018

Journal Scientific and Technical Of Information Technologies, Mechanics and Optics, 2018

Cette invention concerne un dispositif qui repose, pour le traitement de la peau d'un patient... more Cette invention concerne un dispositif qui repose, pour le traitement de la peau d'un patient, sur l'emploi d'une lampe et qui est plus efficace que des dispositifs et des procedes analogues utilises jusqu'ici pour divers traitements dermatologiques. L'efficacite accrue de ce dispositif est attribuable a de moindres fuites photoniques et autres ameliorations. L'invention concerne egalement divers progres en ce qui concerne les guides d'onde utilises pour le traitement optique de la peau.

L'invention concerne un circuit d'alimentation ou d'attaque destine a une lampe-eclai... more L'invention concerne un circuit d'alimentation ou d'attaque destine a une lampe-eclair alimentee par impulsions, utilisant un composant a deux conducteurs a bobinages communs comme inducteur a decharge d'arc et comme declencheur d'eclair pour la lampe. La decharge d'un condensateur par l'inducteur et la lampe est controlee par un commutateur a grande vitesse a semi-conducteurs qui est mis en mode marche et arret par une commande adaptee, le courant circulant depuis l'inducteur par une voie unique comprenant la lampe lorsque le commutateur est en mode arret. La commande permet de maintenir le taux de variation de courant dans la lampe a une valeur moyenne sensiblement constante.

Journal Scientific and Technical Of Information Technologies, Mechanics and Optics, 2018

Journal Scientific and Technical Of Information Technologies, Mechanics and Optics, 2018

Optical and Quantum Electronics, 2017

We developed gigawatt laser system on diode-pumped Nd:Cr:YAG microchip sub-nanosecond laser and l... more We developed gigawatt laser system on diode-pumped Nd:Cr:YAG microchip sub-nanosecond laser and lamp pumped Nd:YAG multistage amplifier. Pulse energy up to 1 J with pulse duration of 0.7 ns at the wavelength of 1064 nm was achieved with very good beam quality. We demonstrated good agreement of computer simulation and experimental data.

Soviet Journal of Quantum Electronics, 1987

Journal of Optical Technology, 2010

The lasing of an Er:YLF laser has been theoretically and experimentally investigated at wavelengt... more The lasing of an Er:YLF laser has been theoretically and experimentally investigated at wavelengths 2.66, 2.71, and 2.81 m in the pulsed-periodic regime under selective pumping by laser-diode radiation at 0.98 m. A substantial variation of the delays of the beginning of lasing at the individual wavelengths is observed, depending on the pump-pulse-repetition rate, along with loss of the lasing at wavelengths 2.66 and 2.71 m as the pulse-repetition rate increases.

Journal of Optical Technology, 2012

ABSTRACT This paper describes an experimental study of the lasing of an Er:YLF laser at wavelengt... more ABSTRACT This paper describes an experimental study of the lasing of an Er:YLF laser at wavelengths 2.66, 2.71, and 2.81 µm under selective pumping by the radiation of laser diodes at wavelength 0.98 µm and passive Q-switching of the cavity by a shutter based on an Fe2+:ZnSe crystal. Single pulses are obtained with energy 3 mJ and width 30 ns at wavelength 2.81 µm.