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  1. No Access

    Article

    Generation of Long-Wavelength Stimulated Emission in HgCdTe Quantum Wells with an Increased Auger Recombination Threshold

    Various designs of dielectric waveguides made of heterostructures with CdHgTe quantum wells grown by molecular beam epitaxy have been studied to generate stimulated emission in the 15–30 μm wavelength range. T...

    K. A. Mazhukina, V. V. Rumyantsev, A. A. Dubinov, V. V. Utochkin… in JETP Letters (2023)

  2. No Access

    Article

    Laser Generation at Wavelengths 4.1–5.1 μm of CdxHg1–xTe/CdyHg1–yTe Quantum-Well Heterostructures with Microdisk Resonators

    Photoluminescence and laser emission spectra of CdHgTe solid-solution quantum-well structures with microdisk cavities of different diameters are demonstrated. The presence of a cavity is shown to contribute to...

    A. A. Razova, V. V. Utochkin, M. A. Fadeev… in Journal of Applied Spectroscopy (2022)

  3. No Access

    Article

    Effect of Internal Optical Losses on the Generation of Mid-IR Stimulated Emission in Waveguide Heterostructures with HgCdTe/CdHgTe Quantum Wells

    Two waveguide heterostructures with an array of 10 HgCdTe/CdHgTe quantum wells grown within a single technological series and designed to generate stimulated emission near 20 and 30 μm are studied. At a temper...

    V. V. Utochkin, A. A. Dubinov, M. A. Fadeev, V. V. Rumyantsev… in Semiconductors (2021)

  4. No Access

    Article

    Express Characterization of the HgCdTe/CdHgTe Quantum Well Waveguide Heterostructures with the Quasi-Relativistic Carrier Dispersion Law by Room-Temperature Photoluminescence Spectroscopy

    An express technique for characterizing narrow-gap waveguide heterostructures with the HgCdTe/CdHgTe quantum wells is proposed, which is based on an analysis of their room-temperature luminescence response. Ad...

    S. V. Morozov, V. V. Utochkin, V. V. Rumyantsev, M. A. Fadeev… in Technical Physics Letters (2021)

  5. No Access

    Article

    Continuous-Wave Stimulated Emission in the 10–14-μm Range under Optical Excitation in HgCdTe/CdHgTe-QW Structures with Quasirelativistic Dispersion

    In two waveguide heterostructures with quantum-well arrays of Hg0.892Cd0.108Te/Cd0.63Hg0.37Te with a thickness of 6.1 nm and Hg0.895Cd0.105Te/Cd0.66Hg0.34Te with a thickness of 7.4 nm, stimulated emission is firs...

    V. V. Utochkin, V. Ya. Aleshkin, A. A. Dubinov, V. I. Gavrilenko… in Semiconductors (2020)

  6. No Access

    Article

    Investigation of Stimulated Emission from HgTe/CdHgTe Quantum-Well Heterostructures in the 3–5 μm Atmospheric Transparency Window

    Stimulated emission based on interband transitions depending on the pum** wavelength is studied for heterostructures with Hg(Cd)Te/CdHgTe quantum wells in the wavelength region of 3–4 μm. The minimal value o...

    L. A. Kushkov, V.V. Utochkin, V. Ya. Aleshkin, A. A. Dubinov… in Semiconductors (2020)

  7. No Access

    Article

    Photoluminescence Spectra of InAs/GaInSb/InAs Quantum Wells in the Mid-Infrared Region

    The photoluminescence spectra of waveguide AlSb/InAs/GaInSb/InAs/AlSb quantum-well heterostructures designed for the generation of radiation at interband transitions in the mid-infrared region have been studie...

    V. V. Utochkin, M. A. Fadeev, S. S. Krishtopenko, V. V. Rumyantsev… in Semiconductors (2020)

  8. No Access

    Article

    Terahertz Emission from HgCdTe QWs under Long-Wavelength Optical Pum**

    Currently semiconductor lasers in the wavelength range from 20 to 60 μm are scarce. HgTe/CdHgTe heterostructures is a potential basis for alternative sources of coherent radiation in this range. We propose tha...

    V. V. Rumyantsev, M. A. Fadeev… in Journal of Infrared, Millimeter, and Terah… (2020)

  9. No Access

    Article

    The Effect of Nitroxyalkyl Succinimides on Activity of Cyclic Guanosine Monophosphate Phosphodiesterase

    The effect of N-nitroxymethyl succinimide (1), N-(2-nitroxyethyl) succinimide (2) and N-(3-nitroxypropyl) succinimide (3) on enzymatic activity of cyclic guanosine monophosphate (cGMP) phosphodiesterase was studi...

    L. V. Tat’yanenko, O. V. Dobrokhotova… in Bulletin of Experimental Biology and Medic… (2020)

  10. No Access

    Article

    Study of the Auger Recombination Energy Threshold in a Series of Waveguide Heterostructures with HgTe/Cd0.7Hg0.3Te QWs Near 14 μm

    Stimulated emission from a heterostructure with Hg0.903Cd0.097Te/Cd0.7Hg0.3Te quantum wells, placed in a waveguide layer of wide-gap CdHgTe, is obtained at wavelengths of 14–11 μm and a temperatures of 18–80 K. T...

    V. V. Utochkin, V. Ya. Aleshkin, A. A. Dubinov, V. I. Gavrilenko… in Semiconductors (2019)

  11. No Access

    Article

    Features of Photoluminescence of Double Acceptors in HgTe/CdHgTe Heterostructures with Quantum Wells in a Terahertz Range

    The terahertz photoluminescence spectra of HgTe/CdHgTe heterostructure with quantum wells under interband optical excitation with a power of 3 to 300 mW have been studied in the temperature range of 30–100 K. ...

    D. V. Kozlov, V. V. Rumyantsev, A. M. Kadykov, M. A. Fadeev, N. S. Kulikov… in JETP Letters (2019)

  12. No Access

    Article

    Terahertz Spectroscopy of Two-Dimensional Semimetal in Three-Layer InAs/GaSb/InAs Quantum Well

    The features of terahertz photoluminescence and magnetoabsorption in magnetic fields up to 16 T in threelayer InAs/GaSb/InAs quantum wells with a band structure corresponding to a “two-dimensional semimetal” a...

    S. S. Krishtopenko, S. Ruffenach, F. Gonzalez-Posada, C. Consejo, W. Desrat… in JETP Letters (2019)

  13. No Access

    Article

    Terahertz Photoluminescence of Double Acceptors in Bulky Epitaxial HgCdTe Layers and HgTe/CdHgTe Structures with Quantum Wells

    The photoluminescence of bulky films and heterostructures with HgCdTe quantum wells is studied in the far IR range upon interband optical excitation. Photoluminescence lines are found whose position is indepen...

    D. V. Kozlov, V. V. Rumyantsev… in Journal of Experimental and Theoretical Ph… (2018)

  14. No Access

    Article

    Calculation of Multiply Charged States of Impurity-Defect Centers in Epitaxial Hg1 –xCdxTe Layers

    A method for calculating the states of multivalent donors and acceptors in Hg1 –xCdxTe materials is developed. The ionization energies of deep acceptor and donor centers in epitaxial Hg1 –xCdxTe films are calcula...

    D. V. Kozlov, V. V. Rumyantsev, S. V. Morozov, A. M. Kadykov… in Semiconductors (2018)

  15. No Access

    Article

    Effect of Features of the Band Spectrum on the Characteristics of Stimulated Emission in Narrow-Gap Heterostructures with HgCdTe Quantum Wells

    We report on the stimulated emission obtained in the wavelength range of 20.3–17.4 μm on the interband transitions at T = 8–50 K in HgCdTe quantum wells placed in a dielectric waveguide formed from wide-gap CdHgT...

    V. V. Rumyantsev, N. S. Kulikov, A. M. Kadykov, M. A. Fadeev… in Semiconductors (2018)

  16. No Access

    Article

    Magnetooptical Studies and Stimulated Emission in Narrow Gap HgTe/CdHgTe Structures in the Very Long Wavelength Infrared Range

    We investigate the prospects of HgTe/HgCdTe quantum wells for long-wavelength interband lasers (λ = 15–30 μm). The properties of stimulated emission (SE) and magnetoabsorbtion data of QWs structures with wide-...

    V. V. Rumyantsev, L. S. Bovkun, A. M. Kadykov, M. A. Fadeev… in Semiconductors (2018)

  17. No Access

    Article

    Synthesis of oxalic acid derivatives and their antitumor activity in experiments in vivo

    A series of amino acid derivatives of oxalic acid were obtained. In combination therapy with conventional cytostatics used in lower doses, the new compounds substantially increase the efficacy of the drugs in ...

    B. S. Fedorov, S. A. Goncharova, T. A. Rajevskaya… in Russian Chemical Bulletin (2018)

  18. No Access

    Article

    Investigation of HgCdTe waveguide structures with quantum wells for long-wavelength stimulated emission

    The photoluminescence and stimulated emission during interband transitions in quantum wells based on HgCdTe placed in an insulator waveguide based on a wide-gap CdHgTe alloy are studied. Heterostructures with ...

    V. V. Rumyantsev, A. M. Kadykov, M. A. Fadeev, A. A. Dubinov… in Semiconductors (2017)

  19. No Access

    Article

    Mercury vacancies as divalent acceptors in Hg y Te1 – y /Cd x Hg1 – x Te structures with quantum wells

    A long-wavelength band caused by transitions between states related to the valence band is detected in the photoconductivity spectra of Hg y Te1 – y ...

    D. V. Kozlov, V. V. Rumyantsev, S. V. Morozov, A. M. Kadykov… in Semiconductors (2016)

  20. No Access

    Article

    Long-wavelength stimulated emission and carrier lifetimes in HgCdTe-based waveguide structures with quantum wells

    The interband photoconductivity and photoluminescence in narrow-gap HgCdTe-based waveguide structures with quantum wells (QWs) (designed for long-wavelength stimulated emission under optical pum**) are inves...

    V. V. Rumyantsev, M. A. Fadeev, S. V. Morozov, A. A. Dubinov… in Semiconductors (2016)

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