تقرير
A triple-mode mid-infrared modulator for all-surface radiative thermal management
| العنوان: | A triple-mode mid-infrared modulator for all-surface radiative thermal management |
|---|---|
| المؤلفون: | Fang, Haoming, Xie, Wanrong, Li, Xiuqiang, Fan, Kebin, Lai, Yi-Ting, Sun, Bowen, Bai, Shulin, Padilla, Willie J., Hsu, Po-Chun |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Physics - Applied Physics, Condensed Matter - Materials Science, Condensed Matter - Soft Condensed Matter, Physics - Optics |
| الوصف: | Thermal management is ubiquitous in the modern world and indispensable for a sustainable future. Radiative heat management provides unique advantages because the heat transfer can be controlled by the surface. However, different surface emissivities require different tuning strategies. Here, we demonstrate a triple-mode mid-infrared modulator that can switch between passive heating and cooling suitable for all types of object surface emissivities. The device is composed of a surface-textured infrared-semi-transparent elastomer coated with a metallic back reflector, which is biaxially strained to sequentially achieve three fundamental modes: emission, reflection, and transmission. By analyzing and optimizing the coupling between optical and mechanical properties, we achieve a performance of emittance contrast = 0.58, transmittance contrast = 0.49, and reflectance contrast = 0.39. The device can provide a new design paradigm of radiation heat regulation to develop the next generation wearable devices, robotics, and camouflage technology. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2104.05469 |
| رقم الأكسشن: | edsarx.2104.05469 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |