Modified Photonic Band Gap Via Thermal Shrinkage of Two-photon Polymerized Distributed Bragg Reflectors

Yu-Shao Chen; Mike P. C. Taverne; C.-C. Huang; Ying-Lung Daniel Ho; John G. Rarity

Conference on Lasers and Electro-Optics/Europe (CLEO/Europe 2023) and European Quantum Electronics Conference (EQEC 2023)
Technical Digest Series (Optica Publishing Group, 2023),
paper ck_p_7

Modified Photonic Band Gap Via Thermal Shrinkage of Two-photon Polymerized Distributed Bragg Reflectors

Yu-Shao Chen, Mike P. C. Taverne, C.-C. Huang, Ying-Lung Daniel Ho, and John G. Rarity

The European Conference on Lasers and Electro-Optics 2023

Munich Germany
26–30 June 2023
ISBN: 979-8-3503-4599-5

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Y. Chen, M. P. C. Taverne, C. -. Huang, Y. D. Ho, and J. G. Rarity, "Modified Photonic Band Gap Via Thermal Shrinkage of Two-photon Polymerized Distributed Bragg Reflectors," in Conference on Lasers and Electro-Optics/Europe (CLEO/Europe 2023) and European Quantum Electronics Conference (EQEC 2023), Technical Digest Series (Optica Publishing Group, 2023), paper ck_p_7.

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Abstract

One-dimensional (1D) polymer-based photonic crystals (PhCs) in the 1.55 μm wavelength range can be easily created using a two-photon direct laser writing system. To achieve shorter period structures, we report the use of thermal shrinkage [4] by a ratio of 2.5 to 5. Our Finite difference time domain (FDTD) simulation and the angle-resolved light scattering characterisation technique using Fourier image spectroscopy (FIS) [5-7] show that the photonic bandgap (PBG) of DBRs blue-shift in the visible region (650 nm to 500 nm).

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