Search: onr:"swepub:oai:research.chalmers.se:bf86dbd7-463d-4d53-8452-35f735403742" >
Frequency converter...
Frequency converter implementing an optical analogue of the cosmological redshift
-
Ginis, Vincent (author)
-
- Tassin, Philippe, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
Craps, Ben (author)
-
show more...
-
Veretennicoff, Irina (author)
-
show less...
-
(creator_code:org_t)
- 2010
- 2010
- English.
-
In: Optics Express. - 1094-4087 .- 1094-4087. ; 18:5, s. 5350-5355
- Related links:
-
https://research.cha...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- According to general relativity, the frequency of electromagnetic radiation is altered by the expansion of the universe. This effect-commonly referred to as the cosmological redshift-is of utmost importance for observations in cosmology. Here we show that this redshift can be reproduced on a much smaller scale using an optical analogue inside a dielectric metamaterial with time-dependent material parameters. To this aim, we apply the framework of transformation optics to the Robertson-Walker metric. We demonstrate theoretically how perfect redshifting or blueshifting of an electromagnetic wave can be achieved without the creation of sidebands with a device of finite length.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- frequency conversion
- transformation optics
- Robertson-Walker
- gravitational redshift
- gravitational analogue
- metamaterials
- time-dependent metamaterial
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database