SPbPU Journal - Physics and Mathematics
    St. Petersburg Polytechnic University Journal: Physics and MathematicsPeter the Great St. Petersburg Polytechnic University
    Since 2008
    ISSN 2304-9782
    ISSN 2618-8686
    ISSN 2405-7223
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    Articles by keywords "led"

    Relationship between the luminous flux drop of LED matrices during tests with thermal resistance and parameters of the emission spectrum

    Physical optics
    Frolov I.V.Zaytsev S.A.Sergeev V.A.Radaev O.A.
    • Year: 2025
    • Volume: 18
    • Issue: 3.2
    • 2
    • 588
    • Pages: 218-222

    InAsSb solid solution optocouple for carbon dioxide analysis

    Physical electronics
    Kunkov R.E.Karandashev S.A.Klimov A.A.Lukhmyrina T.S.Remennyi M.A.
    • Year: 2025
    • Volume: 18
    • Issue: 3.2
    • 4
    • 649
    • Pages: 178-182

    Effect of synthesis modes on the properties of microarc oxide coatings

    Physical materials technology
    Novichkov M.D.Gurin S.A.Shepeleva A.E.Pecherskaya E.A.Golubkov P.E.Maksov A.A.Agafonov D.V.
    • Year: 2025
    • Volume: 18
    • Issue: 3.1
    • 15
    • 721
    • Pages: 293-297

    Ordered GaAs NW growth on Si(111) substrates modified by two-step FIB treatment

    Condensed matter physics
    Shandyba N.A.Eremenko M.M.Dukhan D.D.Chernenko N.E.Kirichenko D.V.Kugaevsky A.D.Makhov I.S.Kryzhanovskaya N.V.Balakirev S.V.Solodovnik M.S.
    • Year: 2025
    • Volume: 18
    • Issue: 3.1
    • 10
    • 783
    • Pages: 19-22

    Physical and technical problems of fusion energy development: From fundamental research to the stage of industrial opening up

    Atom physics and physics of clusters and nanostructures
    Korablev V.V.Rozhansky V. A.Sarygulov A.I.
    • Year: 2024
    • Volume: 17
    • Issue: 4
    • 25
    • 3921
    • Pages: 68-87

    Competing processes in nitride alloys in MQWs of LEDs

    Physical electronics
    Ivanov A.E.Chernyakov A.E.Talnishnikh Nadezhda A.Shabunina E.I.Shmidt N.P.
    • Year: 2024
    • Volume: 17
    • Issue: 3.2
    • 7
    • 2734
    • Pages: 177-181

    Threshold current of separate spectral components of the emission spectrum of InGaN LEDs

    Experimental technique and devices
    Frolov I.V.Radaev O.A.Sergeev V.A.
    • Year: 2024
    • Volume: 17
    • Issue: 3.2
    • 12
    • 2938
    • Pages: 161-165

    Investigation of entangled states of a three-mode electro-optical modulator

    Simulation of physical processes
    Matveeva M.V.Trifanov A.I.Tushavin G.V.Tabieva A.V.
    • Year: 2024
    • Volume: 17
    • Issue: 3.2
    • 9
    • 2946
    • Pages: 130-134

    Numerical investigation of influence GaP nanowire geometry to light extraction efficiency of red light-emitting diode

    Simulation of physical processes
    Novikova K.N.Funtikova A.S.Mozharov A.M.Mukhin I.S.
    • Year: 2024
    • Volume: 17
    • Issue: 3.2
    • 20
    • 2935
    • Pages: 84-87

    Fiber-optic system development for the output frequency setting of a voltage-controlled oscillator at the radar station antenna complex

    Radiophysics
    Fadeenko V.B.Ryzhova D.A.Valov A.P.Shavshin A.V.
    • Year: 2023
    • Volume: 16
    • Issue: 3.2
    • 16
    • 13504
    • Pages: 423-427

    Measurement of the threshold current in the local areas of the LED chip

    Experimental technique and devices
    Frolov I.V.Radaev O.A.Sergeev V.A.
    • Year: 2023
    • Volume: 16
    • Issue: 3.1
    • 9
    • 4420
    • Pages: 330-334

    Crystallization of robotic swarms in a parabolic potential

    Condensed matter physics
    Buzakov M.K.Smirnov V.A.Sennikova D.V.Molodtsova A.A.Rozenblit A.D.Porvatov V.A.Burmistrov O.I.Puhtina E.M.Dmitriev A.A.Olekhno N.A.
    • Year: 2023
    • Volume: 16
    • Issue: 3.1
    • 27
    • 4954
    • Pages: 36-40

    Synthesis and PL study of Sr3 (VO4 ) 2 :Eu3+ phosphor for W-LED application

    Physical materials technology
    Nagpure P.A.Kherde N.D.Barde W.S.
    • Year: 2023
    • Volume: 16
    • Issue: 2
    • 33
    • 5779
    • Pages: 61-67

    Peculiarities of low frequency noise and non-radiative recombination in AlGaN QWs emitting at 280 nm

    Heterostructures, superlattices, quantum wells
    Talnishnikh Nadezhda A.Ivanov A.E.Shabunina E.I.Shmidt N.P.
    • Year: 2023
    • Volume: 16
    • Issue: 1.3
    • 18
    • 4788
    • Pages: 85-89

    Study of exhaled air composition during recovery after respiratory disease by mass spectrometric analysis

    Biophysics and medical physics
    Cherednikova A.A. Kuzmin A.G.Guzenko M.M.Titov Yu.A.Zaitceva A.Yu.
    • Year: 2023
    • Volume: 16
    • Issue: 1.2
    • 27
    • 5319
    • Pages: 277-281

    Microring lasers with a waveguide coupler

    Physical optics
    Fominykh N.A.Zubov Fedor I.Ivanov K.A.Moiseev E.I.Nadtochiy A.M.Mintairov S.A.Kalyuzhniy N.A.Melnichenko I.A.Pirogov V.Scherbak S.A. Urmanov B.D.Nahorny A.V.Kryzhanovskaya N.V.Zhukov A.E.
    • Year: 2023
    • Volume: 16
    • Issue: 1.2
    • 59
    • 5363
    • Pages: 126-132

    Mechanisms leading to thermal quantum efficiency droop in green InGaN/GaN LEDs

    Physical electronics
    Shabunina E.I.Ivanov A.E.Talnishnikh Nadezhda A.Kartashova A.P.Poloskin D.S.Shmidt N.P.Zakgeim A.L.Chernyakov A.E.
    • Year: 2023
    • Volume: 16
    • Issue: 1.2
    • 34
    • 5342
    • Pages: 70-76

    Numerical simulation of waveguide couplers using the coupled mode theory for quantum gates implementation

    Simulation of physical processes
    Lytaev A.A.Popov I.Yu.
    • Year: 2023
    • Volume: 16
    • Issue: 1.1
    • 28
    • 5424
    • Pages: 320-325

    Comprehensive study of the power capabilities of UV-C LEDs in pulsed and continuous modes

    Condensed matter physics
    Ivanov A.E.Chernyakov A.E.Zakgeim A.L.
    • Year: 2023
    • Volume: 16
    • Issue: 1.1
    • 11
    • 4833
    • Pages: 167-171

    Temperature distribution in InAsSbP/InAsSb/InAs double heterostructure on-chip sensors

    Condensed matter physics
    Lukhmyrina T.S.Klimov A.A.Kunkov R.E.Lebedeva N.M.Matveev B.A.Chernyakov A.E.
    • Year: 2023
    • Volume: 16
    • Issue: 1.1
    • 24
    • 5111
    • Pages: 119-125

    Measurement of the internal quantum efficiency of emission in the local region of the LED chip

    Physical optics
    Frolov I.V.Radaev O.A.Sergeev V.A.
    • Year: 2022
    • Volume: 15
    • Issue: 3.3
    • 18
    • 5723
    • Pages: 226-229

    A comprehensive study of electroluminescence and temperature distribution of “UX:3” AlInGaN LED

    Physical electronics
    Ivanov A.E.Aladov A.V.Chernyakov A.E.Zakgeim A.L.
    • Year: 2022
    • Volume: 15
    • Issue: 3.3
    • 15
    • 5679
    • Pages: 142-146

    Crystallization of potassium titanosilicate glass under thermal poling using a profiled anode

    Atom physics and physics of clusters and nanostructures
    Reshetov I.V.RedkovMelehin V.G.Zhurikhina V.V.Lipovskii A.A.
    • Year: 2022
    • Volume: 15
    • Issue: 1
    • 55
    • 6893
    • Pages: 30-40

    Second harmonic generation by surface of poled glasses: modeling and measurement of Maker fringes

    Physical optics
    Scherbak S.A. Reshetov I.V.Zhurikhina V.V.Lipovskii A.A.
    • Year: 2021
    • Volume: 14
    • Issue: 4
    • 86
    • 7407
    • Pages: 95-113

    An influence analysis of creep and plasticity characteristics on the spark plasma sintering process

    Simulation of physical processes
    Borisenko V.A.Semenov A.S.Wallmersperger T.
    • Year: 2021
    • Volume: 14
    • Issue: 3
    • 40
    • 8434
    • Pages: 49-62

    Optimization of surgical field illumination to maximize the contrast when biological objects being visualized

    Experimental technique and devices
    Aladov A.V.Valjukhov V.P.Zakgeim A.L.Kuptsov V.D.Mamoshin A.V.Potapova E.V.Chernyakov A.E.Fotiadi A.E.
    • Year: 2019
    • Volume: 12
    • Issue: 4
    • 43
    • 9403
    • Pages: 79-88

    Experimental setup for studying the blue light effect on sense of time among persons with different type of vegetative regulation

    Experimental technique and devices
    Aladov A.V.Berlov D.N.Valjukhov V.P.Vlasova O.L.Zakgeim A.L.Panihina A.A.Fotiadi A.E.
    • Year: 2019
    • Volume: 12
    • Issue: 3
    • 40
    • 10453
    • Pages: 78-91

    Hardware-software complex for characterization of a person’s functional status on exposure to light with the varied spectral color parameters

    Experimental technique and devices
    Aladov A.V.Berlov D.N.Zakgeim A.L.Chernyakov A.E.Fotiadi A.E.Valjukhov V.P.
    • Year: 2019
    • Volume: 12
    • Issue: 3
    • 46
    • 9182
    • Pages: 63-77

    A study of thermal regime in the high-power LED arrays

    Experimental technique and devices
    Aladov A.V.Belov I. V.Valjukhov V.P.Zakgeim A.L.Chernyakov A.E.
    • Year: 2018
    • Volume: 11
    • Issue: 3
    • 33
    • 10323
    • Pages: 39-51

    Wireless networks of energy efficient dynamically controlled LED sources

    Experimental technique and devices
    Aladov A.V.Valjukhov V.P.Kuptsov V.D.Zakgeim A.L.Mizerov M. N.
    • Year: 2017
    • Volume: 10
    • Issue: 2
    • 130
    • 9516
    • Pages: 28-36

    Special features of radio control link for energy efficient LED light sources

    Experimental technique and devices
    Aladov A.V.Valjukhov V.P.Kuptsov V.D.Demin S.V.Valyukhova A. V.
    • Year: 2017
    • Volume: 10
    • Issue: 2
    • 113
    • 9783
    • Pages: 16-27

    Fractal properties of the led avalanche breakdown

    Physical electronics
    Shashkina A. S.Krivosheykin A.V.Skvortsov N. N.Vorotkov M.V.
    • Year: 2016
    • Issue: 4
    • 194
    • 9588
    • Pages: 85-93

    Thermal resistanсe and nonuniform distribution of electroluminescence and temperature in high-power AlGaInN light-emitting diodes

    Experimental technique and devices
    Aladov A.V.Bulashevich K.A.Chernyakov A.E.Karpov S.Yu.Valjukhov V.P.Zakgeim A.L.
    • Year: 2015
    • Issue: 2
    • 353
    • 9535
    • Pages: 74-83

    The wireless network of controlled energy-effective LED lighting sources

    Experimental technique and devices
    Aladov A.V.Valjukhov V.P.Demin S.V.Zakgeim A.L.Tsatsulnikov A.F.
    • Year: 2015
    • Issue: 1
    • 373
    • 9819
    • Pages: 50-60

    Type LED dynamically controlled light sources for novel lighting technology

    Experimental technique and devices
    Valjukhov V.P.Aladov A.V.Zakgeim A.L.Chernyakov A.E.Tsatsulnikov A.F.
    • Year: 2014
    • Issue: 4
    • 470
    • 10154
    • Pages: 38-47

    Quantum two-dimensional oscillators with Pallen – Edmonds coupling  potential

    Theoretical physics
    Sanin A.L.Semyonov Evgeniy A.
    • Year: 2013
    • Issue: 3
    • 473
    • 9930
    • Pages: 230-236

    Controlled surface acoustic wave phononic crystal based on induced periodic domains

    Condensed matter physics
    Pashchenko V.P.
    • Year: 2013
    • Issue: 3
    • 717
    • 10059
    • Pages: 55-59

    Durability of polymer light emitting diodes

    Physical materials technology
    Zakrevskii V.A.Sudar N.T.
    • Year: 2011
    • Issue: 4
    • 0
    • 9115
    • Pages: 142-146

    The problem of construction of controls over a mechanical system controlled

    Mathematics
    Zubov V.I.Zubov S.V.Strecopitova M.V.Strecopitov I.S.
    • Year: 2012
    • Issue: 1
    • 0
    • 8933
    • Pages: 113-117

    Development features of degradation processes in high-power blue InGaN/GaN light-emitting diodes

    Experimental technique and devices
    Basalkevich T.M.Talnishnikh Nadezhda A.Shmidt N.P.
    • Year: 2012
    • Issue: 3
    • 0
    • 9287
    • Pages: 45-48

    The variation of the distilled water spin-lattice relaxation time in turbulent stream by the strong electrical field

    Radiophysics
    Karseev A.Yu.Davydov V.V.Dudkin V.I.
    • Year: 2013
    • Issue: 1
    • 571
    • 9846
    • Pages: 196-199