Theoretical analysis of chirped pulse effects on plasma formation in water liquid jet Sh. Hilal, A. O. Ismagilov, A. N. Tcypkin, M. V. Melnik Nanosystems Physics Chemistry Mathematics, 2026 We present a theoretical study of how linear chirp controls plasma density in a water jet using a two-stage framework. Stage I solves carrier-population and current equations at a single point, driven by a chirped super-Gaussian pulse. By fixing bandwidth and normalizing for intensity, we isolate a chirp-only response of plasma density, which exceeds unity and shows a consistent advantage for negative over positive chirp. Stage II propagates the field in water via the angular-spectrum method and applies the same equations across space. Normal dispersion reverses the trend: the chirp-only plasma density decreases as chirp grows, negative chirp remains less detrimental, and suppression is strongest for longer FTL pulses (e.g., 80 fs) due to dispersion-induced temporal spreading and spatio-temporal desynchronization. This study separates spectralphase effects from bandwidth and intensity, yields testable predictions for water jets, and provides a foundation for future experiments and self-consistent propagation models.
Non-monotonic dependence of compressive sensing in ghost imaging with an LC-SLM under noisy conditions Polina E. Moreva, Vladimir S. Shumigai, Aleksey V. Chernykh, Azat O. Ismagilov, Boris A. Nasedkin, et al. Applied Optics, 2025 Ghost imaging, which relies on single-pixel detection, offers advantages in spectral flexibility and sensitivity compared to conventional imaging systems. However, its performance is inherently limited by noise and the characteristic square-root dependence of image quality on the number of measurements. This study investigates how compressive sensing methods—specifically L 1 and L 2 norm minimization—alter this dependence under noisy conditions, transforming it into a non-monotonic relationship. We analyze four illumination patterns (non-shifted random binary, subpixel-shifted, displacement, and color-noise patterns) in numerical simulation and an experimental setup, comparing their reconstruction via compressive sensing and second-order correlation methods. Our results provide practical guidelines for pattern and algorithm selection. These insights establish a framework for optimizing ghost imaging systems in noisy environments, including speckle noise from liquid crystal spatial light modulators, dynamic scattering, and source instabilities. The observed non-monotonic quality dependence underscores the need for careful measurement-number optimization in ghost imaging systems with compressive sensing.
Nonlinear transmission of fluorophosphate glass with quantum dots of cadmium and lead sulfides and selenides under near-IR femtosecond laser irradiation N. V. Nikonorov, E. V. Kolobkova, A. N. Tsypkin, A. O. Ismagilov, Е. N. Oparin, et al. Scientific and Technical Journal of Information Technologies Mechanics and Optics, 2025 Nonlinear optical properties of fluorophosphate glass with quantum dots of cadmium sulfides and selenides (CdS and CdSe) and lead (PbS and PbSe) were studied using a pulsed femtosecond near-IR laser. Fluorophosphate glasses with CdS, CdSe, PbS and PbSe quantum dots were obtained by high-temperature synthesis with additional heat treatment. Nonlinear absorption was studied under the action of a pulsed laser at a wavelength of 1050 nm and a duration of 100 fs. It is shown that the transmission at 1050 nm in fluorophosphate glasses with CdS and CdSe quantum dots is 0.78 and 0.88, respectively. In addition, increasing the average power of femtosecond laser radiation from 30 to 2000 mW does not lead to a change in their transmission. For this wavelength, the transmission was 0.1 for the sample with PbS nanocrystals and 0.65 for the sample with PbSe quantum dots. A decrease in transmission with increasing laser radiation power was shown for glass samples with PbS and PbSe quantum dots, i. e., nonlinear transmission (limiting) was observed. The threshold for limiting the power of laser radiation passing through the sample, i.e., the power at which the transmission decreases by more than 20 %, for the sample with PbS quantum dots was 1265 mW, and for an input power of about 1530 mW, this sample had a transmission of less than 0.1 %. The laser power limitation threshold for the PbSe quantum dot sample was 600 mW, and for an input power of about 750 mW it had a transmittance of less than 0.1 %. Fluorophosphate glasses with lead sulfide and selenide quantum dots can be used as limiting filters to protect photodetectors from pulsed laser radiation in the near IR range.
Enhanced stability and optical performance of CsPbBr3@FAPbBr3 core-shell perovskite nanocrystals Danila A. Tatarinov, Azat O. Ismagilov, Aleksandra V. Koroleva, Evgeniy V. Zhizhin, Weitao Zheng, et al. Nanoscale, 2025 A double-shelling strategy with FAPbBr3 and SiO2 shells is proposed to significantly improve the linear and nonlinear optical performance of CsPbBr3 perovskite nanocrystals and ensure their stability under harsh environmental conditions.
Simulation of Single-Pixel Camera Method Application for mapping the Spatial Layout of Objects in LIDAR Technologies Journal of Siberian Federal University Mathematics and Physics, 2025
Cal-Sal ordering of Hadamard patterns for efficient single-pixel object tracking AK Lappo-Danilevskaia, AO Ismagilov, VS Shumigai, VA Efimova Optics and Lasers in Engineering 203, 109803 , 2026 2026
AI SWIR Camera: Deep-Learning-Based Super-Resolution and Segmentation for Multispectral Short-Wave Infrared Imaging V Tuchin, V Shumigai, G Brykin, A Ismagilov, A Lappo-Danilevskaia, ... 2026 8th International Youth Conference on Radio Electronics, Electrical and … , 2026 2026
Vulnerabilities of quantum key distribution systems in the visible range B Nasedkin, A Ismagilov, V Chistiakov, A Gaidash, A Shimko, AD Kiselev, ... JOSA B 43 (3), 416-425 , 2026 2026 Citations: 2
Theoretical analysis of chirped pulse effects on plasma formation in water liquid jet S Hilal, A Ismagilov, AN Tsypkin, MV Melnik Наносистемы: физика, химия, математика 17 (1), 26-33 , 2026 2026
Non-monotonic dependence of compressive sensing in ghost imaging with an LC-SLM under noisy conditions PE Moreva, VS Shumigai, AV Chernykh, AO Ismagilov, BA Nasedkin, ... Applied Optics 64 (32), 9740-9747 , 2025 2025 Citations: 1
Vibrational nonlinear response of complex molecules: theory and measurements in the THz range A Nabilkova, M Guselnikov, A Ismagilov, M Melnik, S Kozlov, A Tcypkin Optics Letters 50 (15), 4778-4781 , 2025 2025 Citations: 2
Vibrational Nonlinear Response of Complex Molecules: Nature and Measurements in the THz Range A Nabilkova, M Guselnikov, A Ismagilov, M Melnik, S Kozlov, A Tcypkin arXiv preprint arXiv:2504.03383 , 2025 2025
Adaptive polarization-multiplexing foveated ghost imaging method based on deep learning VS Shumigai, VS Tuchin, PE Moreva, AM Starceva, AO Ismagilov, ... Optics Communications 577, 131385 , 2025 2025 Citations: 7
Methods for accelerating data acquisition in single-pixel imaging systems. Computer Optics 2025; 49 (6): 1213-1227. DOI: 10.18287/COJ1753 VS Shumigai, AK Lappo-Danilevskaya, AS Sinko, DP Agapov, ... Computer 49, 6 , 2025 2025
JOURNAL OF SIBERIAN FEDERAL UNIVERSIT. MATHEMATICS AND PHYSICS AK LAPPO-DANILEVSKAIA, AO ISMAGILOV, AA KALINICHEV, ... JOURNAL OF SIBERIAN FEDERAL UNIVERSIT. MATHEMATICS AND PHYSICS Учредители … , 2025 2025
Experimental implementation of multispectral single-pixel imaging in the shortwave infrared frequency range VS Shumigai, AO Ismagilov, AK Lappo-Danilevskaia, EN Oparin, ... Наносистемы: физика, химия, математика 16 (4), 437-440 , 2025 2025
A-site cation substitution in CsPbI 3 perovskite nanoplatelets enables their tunable emission and efficient nonlinear absorption AP Litvin, DA Tatarinov, AO Ismagilov, X Zhang, W Zheng, AL Rogach Nanoscale 17 (34), 19758-19766 , 2025 2025 Citations: 2
Simulation of single-pixel camera method application for mapping the spatial layout of objects in LIDAR technologies AK Lappo-Danilevskaia, AO Ismagilov, AA Kalinichev, AN Tcypkin Журнал Сибирского федерального университета. Математика и физика 18 (3 … , 2025 2025 Citations: 1
Enhanced stability and optical performance of CsPbBr 3@ FAPbBr 3 core–shell perovskite nanocrystals DA Tatarinov, AO Ismagilov, AV Koroleva, EV Zhizhin, W Zheng, ... Nanoscale 17 (11), 6695-6703 , 2025 2025 Citations: 9
Simulation of Single-Pixel Camera Method Application for mapping the Spatial Layout of Objects in LIDAR Technologies AO Ismagilov, AA Kalinichev Journal of Siberian Federal University. Mathematics & Physics, 3 , 2025 2025
Strong circularly polarized photoluminescence from mixed halide perovskite nanocrystals induced by anion-assisted chirality imprinting YA Timkina, ID Skurlov, DA Tatarinov, EA Batueva, AO Ismagilov, ... Journal of Luminescence 275, 120817 , 2024 2024 Citations: 8
Ghost polarimetry with a spatial light modulator for creation of structured illumination patterns VS Shumigaĭ, PE Moreva, BA Nasedkin, AO Ismagilov, AV Chernykh, ... Journal of Optical Technology 91 (5), 305-309 , 2024 2024 Citations: 2
Sensitivity enhancement of cubic nonlinearity measurement in THz frequency range A Nabilkova, A Ismagilov, M Melnik, D Gushchin, M Zhukova, ... IEEE Transactions on Terahertz Science and Technology 14 (5), 718-724 , 2024 2024 Citations: 8
Glasses with I-VII and II-VI semiconductor nanocrystals for nonlinear optical limiting A Babkina, E Kolobkova, K Zyryanova, A Ismagilov, A Tsypkin, ... 2024 International Conference Laser Optics (ICLO), 191-191 , 2024 2024
Plasma Characterization in Liquid Jets through Third Harmonic Reflection S Hilal, MV Melnik, AO Ismagilov, AN Tsypkin 2024 International Conference Laser Optics (ICLO), 301-301 , 2024 2024
MOST CITED SCHOLAR PUBLICATIONS
Chiral carbon dots based on L/D-cysteine produced via room temperature surface modification and one-pot carbonization A Das, IA Arefina, DV Danilov, AV Koroleva, EV Zhizhin, PS Parfenov, ... Nanoscale 13 (17), 8058-8066 , 2021 2021 Citations: 63
Experimental determination of the unipolarity of pulsed terahertz radiation MV Arkhipov, AN Tsypkin, MO Zhukova, AO Ismagilov, AV Pakhomov, ... JETP Letters 115 (1), 1-6 , 2022 2022 Citations: 51
Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging L Leibov, A Ismagilov, V Zalipaev, B Nasedkin, Y Grachev, N Petrov, ... Scientific Reports 11 (1), 20071 , 2021 2021 Citations: 49
Varying pre-plasma properties to boost terahertz wave generation in liquids EA Ponomareva, AO Ismagilov, SE Putilin, AN Tsypkin, SA Kozlov, ... Communications Physics 4 (1), 4 , 2021 2021 Citations: 43
Ghost imaging via spectral multiplexing in the broadband terahertz range A Ismagilov, A Lappo-Danilevskaya, Y Grachev, B Nasedkin, V Zalipaev, ... Journal of the Optical Society of America B 39 (9), 2335-2340 , 2022 2022 Citations: 37
Improved One- and Multiple-Photon Excited Photoluminescence from Cd 2+ -Doped CsPbBr 3 Perovskite NCs ID Skurlov, W Yin, AO Ismagilov, AN Tcypkin, H Hua, H Wang, X Zhang, ... Nanomaterials 12 (1), 151 , 2022 2022 Citations: 30
Liquid jet-based broadband terahertz radiation source AO Ismagilov, EA Ponomareva, MO Zhukova, SE Putilin, BA Nasedkin, ... Optical Engineering 60 (8), 082009-082009 , 2021 2021 Citations: 23
Radiation shift from triple to quadruple frequency caused by the interaction of terahertz pulses with a nonlinear Kerr medium I Artser, M Melnik, A Ismagilov, M Guselnikov, A Tcypkin, S Kozlov Scientific Reports 12 (1), 9019 , 2022 2022 Citations: 17
Size dependence of the resonant third-order nonlinear refraction of colloidal PbS quantum dots ID Skurlov, EA Ponomareva, AO Ismagilov, SE Putilin, IA Vovk, ... Photonics 7 (2), 39 , 2020 2020 Citations: 15
Loopholes in the 1500–2100-nm range for quantum-key-distribution components: Prospects for Trojan-horse attacks B Nasedkin, F Kiselev, I Filipov, D Tolochko, A Ismagilov, V Chistiakov, ... Physical Review Applied 20 (1), 014038 , 2023 2023 Citations: 14
Controlling water giant low-inertia nonlinear refractive index in the THz frequency range via temperature variation A Nabilkova, A Ismagilov, M Melnik, A Tsypkin, M Guselnikov, S Kozlov, ... Optics Letters 48 (5), 1312-1314 , 2023 2023 Citations: 14
Parallel multispectral ghost imaging data acquisition with supercontinuum VS Shumigai, EN Oparin, AV Chernykh, AO Ismagilov, NV Petrov, ... Optics & Laser Technology 169, 110135 , 2024 2024 Citations: 11
Engineering the Optical Properties of CsPbBr 3 Nanoplatelets through Cd 2+ Doping ID Skurlov, AV Sokolova, DA Tatarinov, PS Parfenov, DA Kurshanov, ... Materials 15 (21), 7676 , 2022 2022 Citations: 11
Plasma reflectivity behavior under strong subpicosecond excitation of liquids E Ponomareva, A Ismagilov, S Putilin, AN Tcypkin APL Photonics 6 (12) , 2021 2021 Citations: 11
Enhanced stability and optical performance of CsPbBr 3@ FAPbBr 3 core–shell perovskite nanocrystals DA Tatarinov, AO Ismagilov, AV Koroleva, EV Zhizhin, W Zheng, ... Nanoscale 17 (11), 6695-6703 , 2025 2025 Citations: 9
Strong circularly polarized photoluminescence from mixed halide perovskite nanocrystals induced by anion-assisted chirality imprinting YA Timkina, ID Skurlov, DA Tatarinov, EA Batueva, AO Ismagilov, ... Journal of Luminescence 275, 120817 , 2024 2024 Citations: 8
Sensitivity enhancement of cubic nonlinearity measurement in THz frequency range A Nabilkova, A Ismagilov, M Melnik, D Gushchin, M Zhukova, ... IEEE Transactions on Terahertz Science and Technology 14 (5), 718-724 , 2024 2024 Citations: 8
Analyzing transmission spectra of fiber-optic elements in the near IR range to improve the security of quantum key distribution systems BA Nasedkin, IM Filipov, AO Ismagilov, VV Chistiakov, FD Kiselev, ... Bulletin of the Russian Academy of Sciences: Physics 86 (10), 1164-1167 , 2022 2022 Citations: 8
Adaptive polarization-multiplexing foveated ghost imaging method based on deep learning VS Shumigai, VS Tuchin, PE Moreva, AM Starceva, AO Ismagilov, ... Optics Communications 577, 131385 , 2025 2025 Citations: 7
Ghost imaging with auxiliary multiplex channels: a review of the latest results NV Petrov, AO Ismagilov, EN Oparin, VS Shumigai, ... Speckle 2023: VIII International Conference on Speckle Metrology 13070, 362-370 , 2024 2024 Citations: 7
