TY - GEN
T1 - Nanoscale Fabrication and Optimization of Liquid Crystal-Enhanced Resonant Waveguide Gratings for Tunable Mid-IR Filtering
AU - Arshad, Kinza
AU - Aslam, Fozia
AU - Saeed, Sadaf
AU - Bhatti, Matloob Hussain
AU - Ohulchanskyy, Tymish Y.
AU - Nasir, Rida
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - The design of sub-wavelength guided wave resonant structures integrated with Liquid Crystals (LCs) offers a promising approach for developing tunable optical filters with applications in sensing and photonics. This study investigates the design and simulation of such structure, utilizing advanced Finite-Difference Time-Domain (FDTD) simulations to model the performance of the grating design. By incorporating Liquid Crystals into the resonant waveguide grating, the structure achieves tunable transmission characteristics, with both sharp transmission peaks and significant tuning ranges for Transverse Electric (TE) and Transverse Magnetic (TM) modes. The design parameters, including grating depth, period, and fill factor, were optimized to enhance the resonance response. The electrical sensitivity of the structure was also explored, demonstrating its potential for high-precision electrical field sensing. These results highlight the significant advantages of using LC-based sub-wavelength gratings in Mid-IR photonics, offering new possibilities for advanced optical filtering and sensing applications.
AB - The design of sub-wavelength guided wave resonant structures integrated with Liquid Crystals (LCs) offers a promising approach for developing tunable optical filters with applications in sensing and photonics. This study investigates the design and simulation of such structure, utilizing advanced Finite-Difference Time-Domain (FDTD) simulations to model the performance of the grating design. By incorporating Liquid Crystals into the resonant waveguide grating, the structure achieves tunable transmission characteristics, with both sharp transmission peaks and significant tuning ranges for Transverse Electric (TE) and Transverse Magnetic (TM) modes. The design parameters, including grating depth, period, and fill factor, were optimized to enhance the resonance response. The electrical sensitivity of the structure was also explored, demonstrating its potential for high-precision electrical field sensing. These results highlight the significant advantages of using LC-based sub-wavelength gratings in Mid-IR photonics, offering new possibilities for advanced optical filtering and sensing applications.
KW - Liquid Crystals (LCs)
KW - Sub-wavelength guided wave resonant structures
KW - tunable optical filters component
UR - https://www.scopus.com/pages/publications/105030501557
U2 - 10.1109/3M-NANO65639.2025.11261027
DO - 10.1109/3M-NANO65639.2025.11261027
M3 - Conference contribution
AN - SCOPUS:105030501557
T3 - 2025 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2025 - Conference Proceedings
SP - 467
EP - 470
BT - 2025 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2025 - Conference Proceedings
A2 - Yu, Miao
A2 - Zeng, Yi
A2 - Wang, Bowei
A2 - Wang, Junxi
A2 - Wu, Hao
A2 - Wang, Dongxu
A2 - Song, Zhengxun
A2 - Wang, Zuobin
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2025
Y2 - 28 July 2025 through 1 August 2025
ER -