Strain-induced modulation of near-field radiative transfer
Document Type
Article
Date of Original Version
6-11-2018
Abstract
In this theoretical study, we present a near-field thermal modulator that exhibits change in radiative heat transfer when subjected to mechanical stress/strain. The device has two terminals at different temperatures separated by vacuum: one fixed and one stretchable. The stretchable side contains one-dimensional grating. When subjected to mechanical strain, the effective optical properties of the stretchable side are affected upon deformation of the grating. This results in modulation of surface waves across the interfaces influencing near-field radiative heat transfer. We show that for a separation of 100 nm, it is possible to achieve 25% change in radiative heat transfer for a strain of 10%.
Publication Title, e.g., Journal
Applied Physics Letters
Volume
112
Issue
24
Citation/Publisher Attribution
Ghanekar, Alok, Matthew Ricci, Yanpei Tian, Otto Gregory, and Yi Zheng. "Strain-induced modulation of near-field radiative transfer." Applied Physics Letters 112, 24 (2018). doi: 10.1063/1.5037468.