Search Results - "Mikhailov, D. A."
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1
Surface-Emitting Quantum-Cascade Lasers with a Grating Formed by Focused Ion Beam Milling
Published in Semiconductors (Woodbury, N.Y.) (01-10-2023)“…The results of studies of 7.5–8.0 μm range surface-emitting ring quantum-cascade lasers are presented. A second- order diffraction grating with a calculated…”
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2
Study of the Spatial Characteristics of Emission of Surface-Emitting Ring Quantum-Cascade Lasers
Published in Semiconductors (Woodbury, N.Y.) (01-09-2023)“…The results of studies of ring quantum-cascade lasers with surface emission due to a second-order grating formed in the top cladding layers are presented…”
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3
Quantum-Cascade Laser with Radiation Emission through a Textured Layer
Published in Semiconductors (Woodbury, N.Y.) (2022)“…The results of studying a ring surface-emitting quantum-cascade laser with radiation emission through a textured layer formed in the layers of the upper…”
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4
Metal–Dielectric Mirror Coatings for 4–5-μm Quantum-Cascade Lasers
Published in Bulletin of the Lebedev Physics Institute (01-12-2023)“…We report the results of a comparison of metal–dielectric mirror coatings for mid-IR quantum-cascade lasers (QCLs). Samples of QCLs with Al 2 O 3 /Ti/Au and…”
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5
Dielectric Highly Reflective Mirror Coatings for 4–5 μm Quantum Cascade Lasers
Published in Bulletin of the Lebedev Physics Institute (01-12-2023)“…Dielectric mirrors for mid-IR quantum cascade lasers are calculated. Optimal dielectric materials are selected to minimize the absorption of laser radiation…”
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6
Spectral Dynamics of Quantum Cascade Lasers Generating Frequency Combs in the Long-Wavelength Infrared Range
Published in Technical physics (01-08-2020)“…We have studied the spectral and dynamic characteristics of quantum cascade lasers emitting in the long-wavelength infrared range. It is shown that lasers with…”
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7
Estimation of the Influence of the Dispersion and Diffraction Properties of the Ionosphere on the Transionospheric Channel Bandwidth
Published in Geomagnetism and Aeronomy (01-04-2024)“…— A hardware and software complex for estimating the dispersion distortion bandwidth and fading coherence bandwidth in a satellite (transionospheric) radio…”
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8
Observation of Long Turn-On Delay in Pulsed Quantum Cascade Lasers
Published in Journal of lightwave technology (01-04-2022)“…We present an experimental study of the turn-on delay in pulsed mid-infrared quantum cascade lasers. We report the unexpectedly long delay time depending on…”
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Photocatalytic Properties of the MgHPO4·3H2O and MgKPO4·6H2O Phosphates
Published in Inorganic materials (2022)“…— Magnesium double phosphates, MgHPO 4 ·3H 2 O and MgKPO 4 ·6H 2 O, isostructural with the minerals newberyite and struvite-K have been synthesized in powder…”
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10
Heterostructures of Quantum-Cascade Lasers with Nonselective Overgrowth by Metalorganic Vapour Phase Epitaxy
Published in Technical physics letters (01-12-2023)“…The possibility of fabrication of 4.6 μm spectral range quantum-cascade laser heterostructures by molecular-beam epitaxy technique with non-selective…”
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11
Radiation Resistance and Hydrolytic Stability of Y0.95Gd0.05PO4-Based Ceramics with the Xenotime Structure
Published in Inorganic materials (01-07-2021)“…— The Y 0.95 Gd 0.05 PO 4 phosphate with the xenotime structure has been synthesized in powder form and as ceramics. Ceramics with a relative density of ~99%…”
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12
Complications in spinal tumor surgery (review of literature)
Published in Vestnik hirurgii im. I.I. Grekova (01-11-2022)“…Combined anterior and posterior approaches are required in spinal tumor surgery and considered highly invasive. Anatomical and physiological features of the…”
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13
Heterostructures of Quantum-Cascade Lasers Based on Composite Active Regions
Published in Bulletin of the Russian Academy of Sciences. Physics (01-06-2023)“…The In 0.37 Al 0.63 As/In 0.65 Ga 0.35 As/In 0.53 Ga 0.47 As quantum-cascade lasers for 7–8 μm spectral range have been fabricated and studied. The use of a…”
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14
Modeling the deformation of RBMK graphite columns surrounding a damaged cell with a ruptured channel pipe taking aging into account
Published in Atomic energy (New York, N.Y.) (01-02-2011)“…The results of modeling of the deformation of RBMK graphite columns surrounding a damaged cell with a rupture channel tube and analysis of the possibility of…”
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15
High-Power Quantum-Cascade Lasers Emitting in the 8-μm Wavelength Range
Published in Technical physics letters (01-07-2019)“…Molecular beam epitaxy techniques were used to grow a quantum-cascade laser (QCL) heterostructure based on an In 0.53 Ga 0.47 As/Al 0.48 In 0.52 As heteropair…”
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16
Phosphate Ca1/4Sr1/4Zr2(PO4)3 of the NaZr2(PO4)3 structure type: Synthesis of a dense ceramic material and its radiation testing
Published in Journal of nuclear materials (01-03-2014)“…•High density ceramics with NZP structure were prepared by Spark Plasma Sintering.•Ceramic materials were irradiated in cyclotron by Xe ions with fluences…”
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17
Magnetic Separation Method for Isolating Rare-Earth Elements and Zirconium from Molten Salts
Published in Inorganic materials (01-06-2020)“…— The use of magnetic fields in nonaqueous spent nuclear fuel treatment processes involving molten salts opens up new possibilities for selective extraction of…”
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Fine-Grained Tungstates SrWO4 and NaNd(WO4)2 with the Scheelite Structure Prepared by Spark Plasma Sintering
Published in Russian journal of inorganic chemistry (01-03-2019)“…Fine-grained SrWO 4 and NaNd(WO 4 ) 2 ceramics with the scheelite structure having high relative densities (99 and 95.8%), which can appear candidate matrices…”
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19
Generation of Frequency Combs by Quantum Cascade Lasers Emitting in the 8-μm Wavelength Range
Published in Technical physics letters (01-10-2019)“…We have studied the generation of frequency combs by quantum cascade lasers (QCLs) emitting in the 8-μm wavelength range. Results showed the presence of a…”
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20
Spine Tumor Epidemiology in Patients who Underwent Orthopaedic Surgery
Published in Travmatologii͡a︡ i ortopedii͡a︡ Rossii (09-05-2019)“…Purpose of the study — to evaluate the frequency of spine tumors in patients who underwent orthopaedic treatment in a specialized hospital.Materials and…”
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