Optical filter based on metallic glass MgZnCa micro/nano-structure array

Jiang Cheng; Hao Jia; Qingjun Wu; Hao Wang; J. Z. Jiang; Dongxian Zhang

doi:10.1117/12.2326822

24 July 2018 Optical filter based on metallic glass MgZnCa micro/nano-structure array

Jiang Cheng, Hao Jia, Qingjun Wu, Hao Wang, J. Z. Jiang, Dongxian Zhang

Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 1082737 (2018) https://doi.org/10.1117/12.2326822
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China

Abstract

Metallic glasses with unique properties, such as large plasticity within supercooled liquid region ΔT and excellent wear resistance, have attracted much attention in recent years. However, the applications of thin film metallic glass (TFMG) in optical area are seldom reported yet. Here, we proposed a reflective color filter with simple sub-wavelength nanorods fabricated with MgZnCa metallic glasses. Using the finite-difference time-domain (FDTD) methods, we systematically simulated the reflection spectra with different parameters such as the diameter and the height of nanorods. The simulation results indicate that the reflection efficiency is as high as 80%, and the color can be adjusted by changing the parameters effectively, which could be of significance for designing desirable color filters by selecting the appropriate nanostructure parameters. More importantly, the color filter facilitates the scalability to the optical application of TFMG and possesses the potential of large-scale fabrication due to the MgZnCa TFMG has low glass transition temperature (T_g) and large plasticity within ΔT.

Citation Download Citation

Jiang Cheng, Hao Jia, Qingjun Wu, Hao Wang, J. Z. Jiang, and Dongxian Zhang "Optical filter based on metallic glass MgZnCa micro/nano-structure array", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 1082737 (24 July 2018); https://doi.org/10.1117/12.2326822

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KEYWORDS

Nanorods

Glasses

Optical filters

Reflection

Thin films

Finite-difference time-domain method

Reflectivity

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