Hun-Kook Choi | Laser Optics | Best Researcher Award

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Dr. Hun-Kook Choi | Laser Optics | Best Researcher Award

Post. Doc at Gwangju Institute of Science and Technology(GIST), South Korea

Dr. Hun Kook Choi is a dynamic researcher specializing in photonics and laser applications. With expertise in femtosecond laser micromachining, he contributes to innovations in optical devices, fiber sensors, and semiconductor technologies. His collaborative work has been published in leading journals, reflecting his commitment to advancing optical engineering. 🌟🔬📡

Publication Profile : 

Scopus

Orcid

Educational Background 🎓

Dr. Hun Kook Choi earned his Ph.D. in 2017 from the Department of Photonic Engineering at Chosun University, Gwangju, Republic of Korea. His doctoral research focused on “Characterization and Fabrication of Precise Optical Elements Using Hybrid Laser Processing.”

Professional Experience 💼

Dr. Choi is currently a Postdoctoral Researcher at the Optical Application Systems Research Division, Advanced Photonics Research Institute (APRI), Gwangju Institute of Science and Technology (GIST), Republic of Korea. His work involves cutting-edge applications of femtosecond laser systems in fabricating precision optical devices, diffraction optical devices, fiber optic sensors, and semiconductor applications such as bevel etching, DRAM bonding, and Through Glass Via (TGV) processing. His contributions extend to the design and innovation of novel optical and photonic technologies.

Research Interests 🔬

Dr. Choi’s research focuses on:

  • Precision optical devices, including micro-lens arrays (MLA)
  • Diffraction optical elements (DOE)
  • Fiber optic sensors like Fiber Bragg Gratings (FBG)
  • Semiconductor applications leveraging femtosecond lasers
  • Advanced laser processing techniques for glass cutting, micro-structuring, and photonic sensor development.

Publications 📚

  1. Ahsan, M.S., Sohn, I.-B., & Choi, H.-K. (2024). Gorilla Glass Cutting Using Femtosecond Laser Pulse Filaments. Applied Sciences (Switzerland), 14(1), 312.
    (Open access)

  2. Ahsan, S., Arafat, A.I., Akter, T., Sohn, I.-B., & Choi, H.-K. (2024). Light Extraction Efficiency Enhancement of White Organic Light-Emitting Diodes (OLEDs) by Micro/Nano-Patterning the Substrate Layer. Defect and Diffusion Forum, 432, 85–106.

  3. Sohn, I.-B., Choi, H.-K., Jung, Y.-J., Oh, M.-K., & Ahsan, M.S. (2023). Measurement of Fine/Ultrafine Dust Using Lenticular Fiber-Based Particulate Measurement Devices. IEEE Sensors Journal, 23(8), 8400–8409.
  4. Lee, C.J., Choi, H.K., Sohn, I.B., & Ha, J.S. (2023). Laser Micro-Structuring of Super-Hydrophobic Surface for Lotus Effect. Journal of the Korean Society for Precision Engineering, 40(4), 291–299.
  5. Adhikary, A., Ahsan, M.S., Hossain, M.B., Choi, H.-K., & Sohn, I.-B. (2022). Light Intensity and Efficiency Enhancement of n-ZnO/NiO/p-GaN Heterojunction-Based White Light-Emitting Diodes Using Micro-Pillar Array. Journal of Optics (India), 51(3), 526–537.
  6. Choi, H.-K., Jung, Y.-J., Yu, B.-A., Kim, J.-Y., & Ahsan, M.S. (2022). Femtosecond-Laser-Assisted Fabrication of Radiation-Resistant Fiber Bragg Grating Sensors. Applied Sciences (Switzerland), 12(2), 886.
    (Open access)

  7. Lim, K.-D., Choi, H.-K., Sohn, I.-B., Lee, B.-H., & Kim, J.-T. (2021). Fabrication of Lensed Optical Fibers for Biosensing Probes Using CO2 and Femtosecond Lasers. Applied Sciences (Switzerland), 11(9), 3738.
    (Open access)

  8. Lee, S.-B., Jung, Y.-J., Choi, H.-K., Sohn, I.-B., & Lee, J.-H. (2021). Hybrid LPG-FBG Based High-Resolution Micro Bending Strain Sensor. Sensors (Switzerland), 21(1), 1–22.
  9. Shikha, Z.A., Nath, S.K.D., Sikder, N., Choi, H.-K., & Ahsan, M.S. (2021). Demonstration of a 4 Gb/s Wavelength Division Multiplexing Based Li-Fi Network. Proceedings of International Conference on Electronics, Communications and Information Technology (ICECIT).
  10. Shikha, Z.A., Nath, S.K.D., Sikder, N., Choi, H.-K., & Ahsan, M.S. (2021). Development of a Time Division Multiplexing Based Li-Fi System for Voice Communication. Proceedings of International Conference on Electronics, Communications and Information Technology (ICECIT).

 

 

Yuncai Feng | Optical Engineering | Best Researcher Award

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Assoc. Prof. Dr. Yuncai Feng | Optical Engineering | Best Researcher Award

Associate Professor at Qingdao University of Technology, China

Dr. Yuncai Feng is an Associate Professor at Qingdao University of Technology, specializing in surface plasmon, metasurfaces, 2D materials, and perfect absorbers. He earned his Ph.D. from Nanjing University of Aeronautics and Astronautics in 2019 and has published over 20 papers in prestigious journals like Optics Express and Solar Energy. His research focuses on enhancing light-matter interactions for applications in optical sensing, energy harvesting, and photonic devices. With a strong background in nanophotonics and materials science, Dr. Feng’s innovative contributions are shaping next-generation optical technologies.

Publication Profile : 

Scopus

Education 🎓

🎓 Dr. Yuncai Feng earned a Ph.D. in 2019 from Nanjing University of Aeronautics and Astronautics, focusing on advanced topics in optical materials and nanophotonics.

Professional Experience💼

👨‍🏫 Dr. Feng is an associate professor at Qingdao University of Technology, where they continue to explore cutting-edge research in the fields of surface plasmon, metasurfaces, 2D materials, and perfect absorbers. Over the years, Dr. Feng has published more than 20 papers in top-tier journals like Optics Express, Solar Energy, and Optics Communications, contributing significantly to the advancement of optical technologies. With their interdisciplinary approach, Dr. Feng’s work spans across both fundamental research and practical applications in nanophotonics and materials science.

Research Interests 🔬

🔬 Dr. Feng’s research delves into nanostructures, light-matter interactions, and photonic devices. Their innovative designs have led to groundbreaking advancements in optical sensing, energy harvesting, and solar technologies. Notably, their work on atomically thin MoS2 integrated with gradient unit cell structures for antireflection (AR) in solar cells is paving the way for next-generation photovoltaic technologies. Their ongoing research continues to explore spin wave coupling and microwave interactions.

Publications Top Notes 📚

  1. Feng, Y., Huang, Z., Zhang, X., Qiu, T. Broadband and wide-angle antireflection in silicon solar cells using atomically thin MoS2 with a gradient unit cell structure. Solar Energy, 2024, 284, 113088.
  2. Huang, Z., Feng, Y. Tunable Plasmonic Filter Based on Improved Quasiperiodic Structure. Plasmonics, 2024, 19(3), 1649–1657.
  3. Feng, Y., Huang, Z., Zhang, X., Qiu, T. Tunable ultra-wideband graphene-based filter with a staggered structure. Optics Express, 2023, 31(26), 42785–42794. (Open Access)
  4. Feng, Y., Zhao, Y., Liu, Y., Qiu, T. Reconfigurable ultra-compact graphene-based plasmonic devices. Results in Physics, 2022, 34, 105331. (Open Access)
  5. Qiu, T., Ma, H., Xin, P., Feng, Y., Yu, Z. Image adder and subtractor based on light storage. European Physical Journal Plus, 2022, 137(1), 126.
  6. Meng, D., Liu, M., Liu, Y., Feng, Y., Qiu, T. Electromagnetically Induced Polarization Grating in a Quasi-M-Type Atomic System. International Journal of Theoretical Physics, 2021, 60(9), 3387–3395.
  7. Qiu, T., Li, H., Xie, M., Xin, P., Zhao, X. Efficient polarization beam splitter based on the optimized stationary light pulse. Quantum Information Processing, 2021, 20(3), 115.
  8. Feng, Y., Wu, Q.Y.S., Wang, B., Liu, Y., Teng, J. Design of narrowband perfect absorber for enhancing photoluminescence in atomically thin WSe2. Optics Communications, 2020, 454, 124443.
  9. Dong, D., Liu, Y., Fei, Y., Feng, Y., Fu, Y. Designing a nearly perfect infrared absorber in monolayer black phosphorus. Applied Optics, 2019, 58(14), 3862–3869.
  10. Feng, Y., Liu, Y., Teng, J. Design of an ultrasensitive SPR biosensor based on a graphene-MoS2 hybrid structure with a MgF2 prism. Applied Optics, 2018, 57(14), 3639–3644.