Korn S, Popp MA, Weber HB (2022)
Publication Type: Journal article, Letter
Publication year: 2022
Book Volume: 12
Article Number: 4881
URI: https://www.nature.com/articles/s41598-022-07668-5
DOI: 10.1038/s41598-022-07668-5
Open Access Link: https://www.nature.com/articles/s41598-022-07668-5
Historically, thermal radiation is related to 3D cavities. In practice, however, it is known that almost any hot surface radiates according to Planck’s law. This approximate universality roots in the smooth electromagnetic mode structure of free space, into which the radiation is emitted. Here, we study the effect for a strongly patterned mode structure and use quasi-transparent point-like thermal light emitters as a probe. As such, we choose current-driven graphene nanojunctions for which the emission into free space obeys Planck’s law. Placed in front of a mirror, however, this process is highly sensitive to a node/antinode pattern of light modes. By varying the distance, we can sample the latter with atomic precision, and observe a deep imprint on the observed spectrum. The experiment allows an unprecedented view on thermal radiation in a spatially/spectrally patterned electromagnetic environment.
APA:
Korn, S., Popp, M.A., & Weber, H.B. (2022). A point-like thermal light source as a probe for sensing light-matter interaction. Scientific Reports, 12. https://dx.doi.org/10.1038/s41598-022-07668-5
MLA:
Korn, Sascha, Matthias Albert Popp, and Heiko B. Weber. "A point-like thermal light source as a probe for sensing light-matter interaction." Scientific Reports 12 (2022).
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