Photonic black hole
Photonic black hole
We present an optical analogue of a ‘black hole’ and report on its experimental realization. It is commonly believed that light absorption is probabilistic and wavelength-dependant. We report proof-of-principle experiments with a ‘black hole’ absorber that, given a direction of propagation, deterministically fully absorbs incident light irrespectively of the wavelengths. For the first time in this field, we report broadband coherent perfect absorption for applications such as detection, energy conversion, multi-spectral camouflage, and stealth technologies. Analytical calculations and experimental demonstrations indicate nearly 100% absorption across the electromagnetic spectrum and almost no reflection back from the ‘black hole’ absorber device.
(This invited talk was scheduled for 20th August 2023, but the oral presentation was cancelled due to Hurricane Hilary.)
Vaidya, Nina
aa741ed5-08f6-4d6c-8719-cdf727cd9e4b
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Vetlugin, Anton
05ccabe8-e013-40b9-85a0-be64cd0ff740
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
20 August 2023
Vaidya, Nina
aa741ed5-08f6-4d6c-8719-cdf727cd9e4b
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Vetlugin, Anton
05ccabe8-e013-40b9-85a0-be64cd0ff740
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Vaidya, Nina, Plum, Eric, Vetlugin, Anton and Zheludev, Nikolai
(2023)
Photonic black hole.
SPIE Optics + Photonics 2023, , San DIego, United States.
20 - 24 Aug 2023.
Record type:
Conference or Workshop Item
(Other)
Abstract
We present an optical analogue of a ‘black hole’ and report on its experimental realization. It is commonly believed that light absorption is probabilistic and wavelength-dependant. We report proof-of-principle experiments with a ‘black hole’ absorber that, given a direction of propagation, deterministically fully absorbs incident light irrespectively of the wavelengths. For the first time in this field, we report broadband coherent perfect absorption for applications such as detection, energy conversion, multi-spectral camouflage, and stealth technologies. Analytical calculations and experimental demonstrations indicate nearly 100% absorption across the electromagnetic spectrum and almost no reflection back from the ‘black hole’ absorber device.
(This invited talk was scheduled for 20th August 2023, but the oral presentation was cancelled due to Hurricane Hilary.)
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More information
Published date: 20 August 2023
Additional Information:
Invited talk. (Presentation only cancelled owing to Hurricane Hilary).
Venue - Dates:
SPIE Optics + Photonics 2023, , San DIego, United States, 2023-08-20 - 2023-08-24
Identifiers
Local EPrints ID: 481940
URI: http://eprints.soton.ac.uk/id/eprint/481940
PURE UUID: c88f64d0-0dbb-4811-8b9c-d882a7f5211e
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Date deposited: 13 Sep 2023 17:19
Last modified: 23 Feb 2024 03:07
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