Metallic nanowire arrays have been used for discriminating linear polarization and used as a wire-grid polarizer in the simplest form. For their linear geometry, metallic nanowire arrays distinguish p- (perpendicular) from s-polarization (parallel) with respect to the direction of nanowire arrays. In this study, we analyze opto-thermal response on metallic nanowire arrays, for which we performed simulation using finite element method to solve wave-coupled heat transfer equations on metallic nanowire arrays. From the analysis, it was shown that s-polarized light presents lower maximum temperature Tmax = 331.7 K than that of p-polarized light Tmax = 354.5 K under an incident power at 0.1 mW/μm2. In addition, thermal extinction which is defined as the ratio of maximum temperature between p- and s-polarization is measured as 4.78 dB which corresponds to a temperature difference of 54.3K. We have also investigated dispersive misregistration assuming that metallic nanowire arrays are integrated with an imaging detector placed at the focal length of a tube lens. The dispersive effect of a convex tube lens was evaluated using non-uniformity metrics that measure offaxis performance (NTroff, ERoff) and wavelength dependence (NTrλ, NERλ). Maximum non-uniformity was measured to be NTrλ.max = 0.84935, NERλ.max = 0.90139, NTroff.max = 0.93211, and NERoff.max = 0.93624. Image misregistration induced by dispersive effects was also assessed.
|Title of host publication||Physics and Simulation of Optoelectronic Devices XXX|
|Editors||Bernd Witzigmann, Marek Osinski, Yasuhiko Arakawa|
|Publication status||Published - 2022|
|Event||Physics and Simulation of Optoelectronic Devices XXX 2022 - Virtual, Online|
Duration: 2022 Feb 20 → 2022 Feb 24
|Name||Proceedings of SPIE - The International Society for Optical Engineering|
|Conference||Physics and Simulation of Optoelectronic Devices XXX 2022|
|Period||22/2/20 → 22/2/24|
Bibliographical noteFunding Information:
This work was supported by National Research Foundation grants funded by the Korean government (2019R1A4A1025958 and 2019K2A9A2A08000198) and partly sponsored by the Ministry of Trade, Industry and Energy (P048000064). Authors also acknowledge the support from the Korea Medical Device Development Fund (Project Number: KMDF_PR_20200901_0088 and KMDF_PR_20200901_0103).
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering