1. HEAT TREATMENT EFFECT ON OPTICAL ABSORPTION AND PHOTOLUMINESCENCE IN Na_0.5Bi_0.5TiO₃ CRYSTALS .
   Т. V. Panchenko, V. M. Sidak, M. P. Trubitsyn, V. Laguta, O. V. Khmelenko and T. V. Kruzina. 2025. Ukr. J. Phys. Opt. 26: 04001 – 04012.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04001



2. DEEP LEARNING-BASED TRAFFIC SIGN OPTICAL RECOGNITION FOR INTELLIGENT TRANSPORTATION.
   Ling Xu, Jiaao Wang, Xiaoling Cheng, Weiping Zhu, Yiguo Wan, Jinju Tang, Xiaokun Yang, XiangQing Wang and Dongfei Wang. 2025. Ukr. J. Phys. Opt. 26: 04013 – 04031.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04013


3. MECHANISM FOR 32-FOLD FREQUENCY MULTIPLICATION TERAHERTZ WAVE GENERATION BASED ON TWO DUAL-PARALLEL AND ONE CASCADED MZMS WITHOUT FILTERING FOR HIGH-FREQUENCY COMMUNICATIONS.
   Yang Cui, Dongfei Wang, Xiangqing Wang, Xiaokun Yang, Jiahui Wang and Daisheng Zhang. 2025. Ukr. J. Phys. Opt. 26: 04032 – 04048.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04032


4. AB INITIO CALCULATIONS OF THE ELECTRONIC STRUCTURE AND OPTICAL PROPERTIES OF Cu₄SeTe CRYSTALS.
   K. K. Azizova, Z. A. Jahangirli, S. S. Ragimov, T. K. Nurubeyli, L. Ch. Suleymanova, N. V. Kerimli, G. N. Mammadova, L. V. Mammadov and S. O. Gulieva. 2025. Ukr. J. Phys. Opt. 26: 04049 – 04057.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04049


5. SUPERSYMMETRY APPROACH FOR DESCRIBING OPTICAL VORTEX GENERATION IN FIBERS.
   O.V. Angelsky and S.P. Shchukin 2025. Ukr. J. Phys. Opt. 26: 04058 – 04065.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04058


6. OPTICAL SOLITONS FOR THE DISPERSIVE CONCATENATION MODEL WITH KERR LAW OF SELF–PHASE MODULATION BY LIE SYMMETRY.
   R. Yadav, S. Kumar, A.M. Elsherbeny, Y. Yildirim, M.J. Jweeg, A.M.K. Al-Dulaimi, L. Moraru and A. Biswas. 2025. Ukr. J. Phys. Opt. 26: 04066 - 04082.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04066


7. SYMMETRY-ADAPTED LIE ALGEBRAIC FRAMEWORK FOR MODELING THE VIBRATIONAL MODES OF SULFUR HEXAFLUORIDE.
   Vijayasekhar Jaliparthi, Venkateswara Rao Mannepalli and Amal S. Alali. 2025. Ukr. J. Phys. Opt. 26: 04083 – 04094.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04083


8. THE OPTIMAL VECTOR PHASE MATCHING CONDITIONS IN BIAXIAL CRYSTALLINE MATERIALS DETERMINED BY THE EXTREME SURFACES METHOD: THE CASE OF MONOCLINIC CRYSTALS.
   D. Shulha, O. Buryy, N. Andrushchak, Z. Kohut, B. Sahraoui and A. Andrushchak. 2025. Ukr. J. Phys. Opt. 26: 04095 – 04108.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04095


9. INCREASE IN THE ACOUSTO-OPTIC FIGURE OF MERIT IN SIO2 CRYSTALS DUE TO OPTICAL ACTIVITY. ANISOTROPIC ACOUSTO-OPTIC INTERACTIONS. ERRATA.
   O. Mys, D. Adamenko and R. Vlokh. 2025. Ukr. J. Phys. Opt. 26: 04109 – 04113.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2025.04109

1. PHOTOCHROMISM OF DOPED Bi₁₂SiO₂₀ CRYSTALS.
   Т. V. Panchenko, M. P. Trubitsyn and V. Laguta. 2026. Ukr. J. Phys. Opt. 27: 01001 – 01015.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2026.01001


2. A NEW PHOTONIC SCHEME FOR GENERATING 10-FOLD FREQUENCY MILLIMETER-WAVE SIGNALS BASED ON FOUR PARALLEL POLARIZATION MODULATORS.
   Dongfei Wang, Yang Mu, Weiping Zhu, Xiaoling Cheng, Ling Xu, Yu Wang, Jinju Tang, Cheng Yao, Xiaokun Yang and Xiangqing Wang. 2026. Ukr. J. Phys. Opt. 27: 01016 – 01026.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2026.01016


3. COMPARATIVE ANALYSIS OF GRADED-INDEX AND STEP-INDEX OPTICAL FIBERS FOR STED MICROSCOPY.
   O. V. Angelsky, P. P. Maksymiak and S. P. Shchukin. 2026. Ukr. J. Phys. Opt. 27: 01027 – 01039.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2026.01027


4. JUDD-OFELT ANALYSIS AND CONCENTRATION-DEPENDENT LUMINESCENCE QUENCHING BEHAVIOR OF Dy³⁺-DOPED NaYGeO₄ PHOSPHORS PREPARED BY SOLID-STATE REACTION.
   Shengyi Liu, Duan Gao, Jiade Dong, Han Yin, Haoyu Liu, Li Wang and Wenbin Song. 2026. Ukr. J. Phys. Opt. 27: 01040 – 01053.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2026.01040


5. MORPHOLOGICAL ENGINEERING OF PLASMONIC NANOSTRUCTURES: SIMULATION OF OPTICAL RESPONSE FOR NANOPARTICLES WITH BASIC GEOMETRIES.
   T. Bulavinets, V. Grokhotov, I. Helzhynskyy, B. Bulavinets, P. Stakhira and I. Yaremchuk. 2026. Ukr. J. Phys. Opt. 27: 01054 – 01069.
   doi: 10.3116/16091833/Ukr.J.Phys.Opt.2026.01054