Sergey B Mirov

Sergey B Mirov
University of Alabama at Birmingham | UAB · Department of Physics

PhD in Physics

About

458
Publications
37,817
Reads
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5,532
Citations
Additional affiliations
July 1993 - present
University of Alabama at Birmingham
Position
  • University Professor, Director Center of Optical Sensors and Spectroscopies
September 1983 - October 1992
A. M. Prokhorov General Physics Institute, Russian Academy of Sciences
Position
  • Group Leader
May 1978 - August 1983
P.N. Lebedev Physics Institute USSR Academy of Sciences
Position
  • Staff Research Physicist

Publications

Publications (458)
Conference Paper
We present recent results on high energy, high repetition rate 2090 nm Ho:YAG laser system resonantly pumped by the radiation of efficient Tm-doped CW fiber lasers. The laser consists of a master oscillator power amplifier (MOPA) with two additional amplification stages. We demonstrate maximum energy of 120 mJ per pulse with a 15 ns pulse width at...
Preprint
Full-text available
Large scale laser facilities are needed to advance the energy frontier in high energy physics and accelerator physics. Laser plasma accelerators are core to advanced accelerator concepts aimed at reaching TeV electron electron colliders. In these facilities, intense laser pulses drive plasmas and are used to accelerate electrons to high energies in...
Article
New developments in ultrafast mid-infrared (mid-IR) hybrid lasers enable the implementation of compact and reliable optical frequency combs for real-world applications.
Conference Paper
Full-text available
We demonstrate vector solitons in a few-cycle polycrystalline Cr:ZnS oscillator at the middle-IR wavelength 2.4 µm and deploy realistic simulations to identify χ (2) nonlinearity in a polycrystal as the main factor contributing to polarization dynamics.
Conference Paper
Full-text available
We report dual-comb spectroscopy experiments with stabilized combs based on Kerr-lens mode-locked Cr:ZnS lasers. The compact dual-comb setup features >3W power per each channel, 80-MHz comb-mode spacing, and 60-THz-wide band centered at 2.4 μm.
Conference Paper
We present recent results on 1645/1617 nm Er:YAG and 2090 nm Ho:YAG laser systems optically pumped by efficient CW fiber lasers. Multi-mJ pulse energy, MW-level peak powers are obtained in a range of repetition rates.
Article
Full-text available
The resonant nonlinear refraction of 4-5-μm light in CO and CO 2 gas at a peak intensity of 15 MW/cm 2 was demonstrated using time-and frequency-resolved measurements of self-focusing and self-defocusing. The nonlinearity of these molecular gases exhibits intensity-dependent sign reversals and a < 4-ns response time. A change from self-focusing to...
Article
Full-text available
10 µm lasing is studied in a compact CO2-He cell pressurized up to 15 atm when optically pumped by a ∼50 mJ Fe:ZnSe laser tunable around 4.3 µm. The optimal pump wavelength and partial pressure of CO2 for generating 10 µm pulses are found to be ∼4.4 µm and 0.75 atm, respectively. Without cavity optimization, the optical-to-optical conversion effici...
Preprint
The resonant nonlinear refraction of 4-5 $\mu$m light in CO and CO$_2$ gas at a peak intensity of 15 MW/cm$^2$ was demonstrated using time- and frequency-resolved measurements of self-focusing and self-defocusing. The nonlinearity of these molecular gases exhibits intensity-dependent sign reversals and a < 4 ns response time. A change from self-foc...
Article
Until recently, the generation of super-octave continua in bulk materials at full repetition rates of femtosecond (fs) oscillators has been limited to a few special cases of Kerr-lens mode-locked Ti:sapphire lasers. In 2019 we described a 3.4-octave fs source with 50 nJ pulse energy at the repetition rate of 78 MHz based on polycrystalline Cr:ZnS [...
Article
This Joint Issue of Optics Express and Optical Materials Express features 15 articles written by authors who participated in the international online conference Advanced Solid State Lasers held 13–16 October, 2020. This review provides a summary of the conference and these articles from the conference which sample the spectrum of solid state laser...
Article
This Joint Issue of Optics Express and Optical Materials Express features 15 articles written by authors who participated in the international online conference Advanced Solid State Lasers held 13–16 October, 2020. This review provides a summary of the conference and these articles from the conference which sample the spectrum of solid state laser...
Article
We report mechanically Q-switched 2.94 µm Er:YAG laser based on spinning mirror with 805 mJ output energy in a single 61 ns pulse at 1 Hz repetition rate and 670 Hz rotational rate of the spinning mirror. This record output energy was achieved with the use of 300 mm long MQS Er:YAG laser cavity consisted of 70% output coupler, 7x120 mm AR coated Er...
Article
We report the first room temperature gain switched Fe:ZnSe hot-pressed ceramic laser pumped by 2.94 μm radiation of mechanically Q-switched Er:YAG laser. The maximum output energy was obtained to be 2.5 mJ at 32 mJ of pump energy. The measured slope efficiency was 8% with respect to the pump energy. In this experiment, 3.2 mm hot-pressed Fe:ZnSe ce...
Article
This Joint Issue of Optics Express and Optical Materials Express features 15 articles written by authors who participated in the international online conference Advanced Solid State Lasers held 13-16 October, 2020. This review provides a summary of the conference and these articles from the conference which sample the spectrum of solid state laser...
Article
Full-text available
We report on the spectroscopic characterization, absorption saturation, and excited-state dynamics of GR1 centers in synthetic diamonds. The non-linear optical measurements reveal an efficient bleaching of the GR1 center's ground level under ns-pulsed 633 nm excitation. The maxima of absorption and emission cross sections were estimated to be 4.5 ×...
Article
Full-text available
We report a flashlamp pumped mechanically Q-switched (MQS) 2.94 μm Er:YAG laser based on a spinning mirror with a highest output energy of 805 mJ at a pulse duration of 61 ns and 13 MW of peak power at 1 Hz repetition rate. This record output energy was achieved with the use of 300 mm long MQS Er:YAG laser cavity consisting of a 70% output coupler,...
Article
We report, to the best of our knowledge, the first super-octave femtosecond polycrystalline Cr:ZnS laser at the central wavelength 2.4 µm. The laser is based on a non-polarizing astigmatic X-folded resonator with normal incidence mounting of the gain element. The chromatic dispersion of the resonator is controlled with a set of dispersive mirrors w...
Article
We report on a RT gain-switched Fe:ZnSe master oscillator power amplifier (MOPA) system tunable over 3.8-5.0 µm pumped by radiation of Er:YAG laser operating at 2.94 µm. The mechanically Q-switched Er:YAG laser with output energy up to 220 mJ was used as a pump source for a master oscillator and three-stage power amplifier. The maximum output energ...
Conference Paper
We report on room temperature Fe:ZnSe MOPA system tunable over 3.6-5.2 µm pumped by radiation of Q-switched 2.94 µm Er:YAG laser. The maximum output energy was measured to be 60mJ under 200mJ of pump energy.
Conference Paper
We report the mechanically Q-switched 2.94 µm Er:YAG laser with a record 350 mJ output energy at 3 Hz repetition rate with 160 ns pulse duration and ~10 ns pulse jitter for fine synchronization of pulses.
Conference Paper
We report the first room temperature gain switched hot-pressed Fe:ZnSe ceramic laser pumped by radiation of 2.94 μm mechanically Q-switched Er:YAG laser. The maximum output energy was 1.5 mJ (90 ns) with 15% slope efficiency.
Conference Paper
Full-text available
We report on saturation of GR1 centers absorption resulting in ~70% inversion. Probe kinetics revealed strong bleaching of ground level followed by relaxation to metastable level with branching ratio ~0.5.
Article
Full-text available
We report the first room temperature gain-switched Fe:ZnSe hot-pressed ceramic laser pumped by 2.94 µm radiation of mechanically Q-switched Er:YAG laser. The maximum output energy at 4.2 µm was 41 mJ at 3 Hz repetition rate and 120 ns pulse duration. The measured slope efficiency was 25% with respect to the absorbed energy. This technique could be...
Article
We report on the highly efficient, octave-spanning mid-infrared (mid-IR) optical parametric amplification (OPA) in a ZnGeP2 (ZGP) crystal, pumped by a 1 kHz, 2.4 μm, 250 fs Cr:ZnSe chirped-pulse amplifier. The full spectral coverage of 3-10 μm with the amplified signal and idler beams is demonstrated. The signal beam in the range of ∼3 - 5 μm is pr...
Article
A pulsed ∼2 mJ Fe:ZnSe laser tunable around ∼4.3 μm is used to optically pump mixtures of CO2 and He to create gain at 10 μm. A conventional low-pressure CO2 laser operating on both regular (001-100) and sequence (002-101) bands is used to study the gain dynamics of the optically pumped CO2 amplifier. Time-resolved measurements of the CO2 asymmetri...
Preprint
Coherent laser beams in the 3 to 20 {\mu}m region of the spectrum are most applicable for chemical sensing by addressing the strongest vibrational absorption resonances of the media. Broadband frequency combs in this spectral range are of special interest since they can be used as a powerful tool for molecular spectroscopy offering dramatic gains i...
Conference Paper
Full-text available
We report mid-IR frequency comb with 3.25 W average power and spectrum spanning 60 THz near 2.4 µm. We stabilized the offset frequency of the comb with accumulated phase error of 75 mrads.
Article
This joint issue of Optics Express and Optical Materials Express features 17 state-of-the art articles written by authors who participated in the international conference Advanced Solid-State Lasers held in Vienna, Austria, from September 29 to October 3, 2019. This introduction provides a summary of these articles that cover numerous areas of soli...
Article
This joint issue of Optics Express and Optical Materials Express features 17 state-of-the art articles written by authors who participated in the international conference Advanced Solid-State Lasers held in Vienna, Austria, from September 29 to October 3, 2019. This introduction provides a summary of these articles that cover numerous areas of soli...
Conference Paper
Full-text available
We report a technique for generation of ultra-broadband coherent femtosecond continua in the infrared. The laser architecture is based on the Cr:ZnS–GaSe and Cr:ZnS–ZGP tandem arrangements that enable simultaneous amplification of ultrashort middle IR pulses and augmentation of pulses’ spectrum via a chain of intrapulse three-wave mixings. The firs...
Conference Paper
The neutral vacancy (GR1) centers are the intrinsic lattice defects in diamond with interesting optical properties. In the present work, we performed optical characterization of the GR1 centers in CVD-grown bulk diamond to explore their laser feasibility. The non-linear optical measurements reveal efficient saturable absorption of ground level of t...
Article
We report laser operation of spinning mirror mechanically Q-switched (MQS), flashlamp pumped 2.94 m Er:YAG laser depending on the angular speed of the mirror, repetition rate, size and temperature of the gain element, pulse duration and jitter of Q-switch pulses, as well as pump pulse energy. The highest output energy of 260 mJ with a pulse durati...
Conference Paper
We report optical characterization of Fe:ZnSe hot-pressed ceramics and demonstrate first room-temperature gain-switched lasing of this new ceramic medium. The maximum output energy was measured to be 0.7 mJ at 3.5% slope efficiency.
Conference Paper
We used a dispersionless-cavity subharmonic OPO pumped by femtosecond 2.35-pm pulses to demonstrate a coherent output spanning 3-12pm with up to 245-mW power. We also compare the performance of the OP-GaP vs OP-GaAs crystal.
Article
We report, to the best of our knowledge, the first fully referenced Cr:ZnS optical frequency comb. The comb features few cycle output pulses with 3.25 W average power at 80 MHz repetition rate, spectrum spanning 60 THz in the middle-IR range 1.79-2.86 µm, and a small footprint (0.1 m 2), The spectral components used for the measurement of the comb'...
Conference Paper
Full-text available
We report a 1-kHz, 1.5 mJ Cr:ZnSe chirped pulse amplifier with 140 fs pulse width, 9.5 GW peak power at 2.4 µm central wavelength. The amplifier is seeded with a commercial few-cycle Cr:ZnS oscillator.
Conference Paper
Full-text available
We demonstrate a fs laser architecture that enables the direct measurement of the laser's carrier envelope offset frequency. A multi-Watt source is arranged as a full-repetition-rate polycrystalline Cr:ZnS MOPA and covers 3-octaves (0.4-4.2 µm).
Article
This joint issue of Optics Express and Optical Materials Express features 28 state-of-the-art articles written by authors who participated in the international “Advanced Solid State Lasers” conference, held in Boston November 4–8, 2018. This review provides a summary of these articles that cover the spectrum of solid state lasers from materials res...
Article
Full-text available
We use time- and frequency-resolved measurements of self-focusing and self-defocusing of 4.3-μm radiation in CO2 gas to study the resonant nonlinear optical response in the vicinity of individual rovibrational lines. Measurements over a range of lines on the 4P and 4R branch of the 000-001 transition indicate that the nonlinear response of CO2 is s...
Article
Full-text available
This joint issue of Optics Express and Optical Materials Express features 28 state-of-the-art articles written by authors who participated in the international "Advanced Solid State Lasers" conference, held in Boston November 4-8, 2018. This review provides a summary of these articles that cover the spectrum of solid state lasers from materials res...
Article
We demonstrate the generation of a supercontinuum spanning more than 1.5 octaves over the 1.2–3.7 µm range in a silicon nitride waveguide using sub-40-fs pulses at 2.35 µm generated by a 75 MHz Kerr-lens mode-locked Cr:ZnS laser.
Article
We report a technique for generation of broad and coherent femtosecond (fs) continua that span several octaves from visible to long-wave IR parts of the spectrum (0.4-18 µm). The approach is based on simultaneous amplification of few-cycle pulses at 2.5 µm central wavelength at 80 MHz repetition rate, and augmentation of their spectrum via three-wa...
Article
We report on room temperature gain-switched and Q-switched Fe:ZnSe lasers tunable over 3.60–5.15 µm pumped by radiation of an 2.94 µm Er:YAG laser. The maximum output energy was measured to be 5 mJ under 15 mJ of pump energy in gain-switched regime. We also demonstrated a mechanically Q-switched regime of oscillation of Fe:ZnSe lasers. This approac...
Conference Paper
We used a 0.5-mm randomly-phase-matched ZnSe polycrystal pumped by femtosecond 2.35-µm pulses and achieved a 3.2–9-µm-wide spectrum with 53-mW output power in a dispersion-free OPO cavity consisting of gold-coated mirrors and a pump injector.
Conference Paper
We generate longwave mid-IR transients between 4 and 18 µm via optical rectification of 5.9-W 78-MHz 20-fs laser pulses centered at 2.5 µm. We achieve 0.15 W (0.014 W) average power in ZGP (GaSe) crystals.
Conference Paper
We report laser architecture that enables generation of coherent femtosecond continua that span from visible to long-wave IR (0.5-18 µm), and features: high power (4W), high repetition rate (80 MHz), and intrinsic nonlinear interferometry.
Conference Paper
We used an orientation-patterned gallium phosphide (OP-GaP) crystal combined with an ultrafast 2.35-µm pump (1.2W, 79 MHz, 62 fs) to demonstrate a subharmonic sync-pumped OPO with an instantaneous output spectrum of 3–12.5 µm.
Article
Full-text available
We report on the spectroscopic and laser characterization of negatively charged nitrogen-vacancy (NV−) centers in diamond. Spectroscopic properties such as absorption and emission spectra as well as kinetics were studied, and parameters such as cross-sections and lifetimes were estimated. A vibronic band of NV0 with zero phonon line (ZPL) at 575 nm...
Article
We report on the characterization of energy transfer in iron-chromium co-doped ZnSe middle-infrared laser crystals. The room temperature kinetics of the Fe:Cr:ZnSe sample under excitation of chromium ion at 1560 nm shows that energy transfer in Fe-Cr centers could be as fast as 290 ns. This rate is close to the non-radiative relaxation rate of Fe ²...