Strain-induced modulation of near-field radiative transfer

Alok Ghanekar, Matthew Ricci, Yanpei Tian, Otto Gregory, Yi Zheng

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


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%.
Original languageEnglish (US)
JournalApplied Physics Letters
Issue number24
StatePublished - Jun 11 2018
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-23

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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