Intensity interferometry : Optical imaging with kilometer baselines
(2016) Optical and Infrared Interferometry and Imaging V 9907.- Abstract
Optical imaging with microarcsecond resolution will reveal details across and outside stellar surfaces but requires kilometer-scale interferometers, challenging to realize either on the ground or in space. Intensity interferometry, electronically connecting independent telescopes, has a noise budget that relates to the electronic time resolution, circumventing issues of atmospheric turbulence. Extents up to a few km are becoming realistic with arrays of optical air Cherenkov telescopes (primarily erected for gamma-ray studies), enabling an optical equivalent of radio interferometer arrays. Pioneered by Hanbury Brown and Twiss, digital versions of the technique have now been demonstrated, reconstructing diffraction-limited images from... (More)
Optical imaging with microarcsecond resolution will reveal details across and outside stellar surfaces but requires kilometer-scale interferometers, challenging to realize either on the ground or in space. Intensity interferometry, electronically connecting independent telescopes, has a noise budget that relates to the electronic time resolution, circumventing issues of atmospheric turbulence. Extents up to a few km are becoming realistic with arrays of optical air Cherenkov telescopes (primarily erected for gamma-ray studies), enabling an optical equivalent of radio interferometer arrays. Pioneered by Hanbury Brown and Twiss, digital versions of the technique have now been demonstrated, reconstructing diffraction-limited images from laboratory measurements over hundreds of optical baselines. This review outlines the method from its beginnings, describes current experiments, and sketches prospects for future observations.
(Less)
- author
- Dravins, Dainis LU
- organization
- publishing date
- 2016
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Cherenkov telescopes, Intensity interferometry, Long baselines, Optical imaging, Stars, Stellar surfaces
- host publication
- Optical and Infrared Interferometry and Imaging V
- volume
- 9907
- article number
- 99070M
- publisher
- SPIE
- conference name
- Optical and Infrared Interferometry and Imaging V
- conference location
- Edinburgh, United Kingdom
- conference dates
- 2016-06-27 - 2016-07-01
- external identifiers
-
- wos:000390024400015
- scopus:85006862899
- ISBN
- 9781510601932
- DOI
- 10.1117/12.2234130
- language
- English
- LU publication?
- yes
- id
- 245c805b-4057-4411-bd6f-5aa0b14bff68
- date added to LUP
- 2017-04-21 11:46:42
- date last changed
- 2024-01-13 19:21:44
@inproceedings{245c805b-4057-4411-bd6f-5aa0b14bff68, abstract = {{<p>Optical imaging with microarcsecond resolution will reveal details across and outside stellar surfaces but requires kilometer-scale interferometers, challenging to realize either on the ground or in space. Intensity interferometry, electronically connecting independent telescopes, has a noise budget that relates to the electronic time resolution, circumventing issues of atmospheric turbulence. Extents up to a few km are becoming realistic with arrays of optical air Cherenkov telescopes (primarily erected for gamma-ray studies), enabling an optical equivalent of radio interferometer arrays. Pioneered by Hanbury Brown and Twiss, digital versions of the technique have now been demonstrated, reconstructing diffraction-limited images from laboratory measurements over hundreds of optical baselines. This review outlines the method from its beginnings, describes current experiments, and sketches prospects for future observations.</p>}}, author = {{Dravins, Dainis}}, booktitle = {{Optical and Infrared Interferometry and Imaging V}}, isbn = {{9781510601932}}, keywords = {{Cherenkov telescopes; Intensity interferometry; Long baselines; Optical imaging; Stars; Stellar surfaces}}, language = {{eng}}, publisher = {{SPIE}}, title = {{Intensity interferometry : Optical imaging with kilometer baselines}}, url = {{http://dx.doi.org/10.1117/12.2234130}}, doi = {{10.1117/12.2234130}}, volume = {{9907}}, year = {{2016}}, }