Share Email Print
cover

Proceedings Paper

Achieving far-field thermal rectification using gold-vanadium dioxide micro-gratings (Conference Presentation)

Paper Abstract

We propose gold micro-grating structures with VO2 filled slots as suitable emitters to achieve enhanced far-field thermal rectification. We numerically calculate the rectification ratio for two different approaches: peak extinction and peak shift. In the peak extinction approach, a change in temperature switches the coupling between a grating surface plasmon mode and far field on and off. In the peak shift approach it causes a shift in its resonant wavelength. In both these approaches, we discuss the effect of tuning the extinction coefficient of metallic and insulating VO2.

Paper Details

Date Published: 10 March 2020
PDF
Proc. SPIE 11289, Photonic and Phononic Properties of Engineered Nanostructures X, 112891D (10 March 2020); doi: 10.1117/12.2544421
Show Author Affiliations
Romil Audhkhasi, The Univ. of Southern California (United States)
Michelle Povinelli, The Univ. of Southern California (United States)


Published in SPIE Proceedings Vol. 11289:
Photonic and Phononic Properties of Engineered Nanostructures X
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray