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Terahertz Spectroscopy in the Lab and at Telescopes

Blake, Geoffrey A. (2009) Terahertz Spectroscopy in the Lab and at Telescopes. In: Submillimeter astrophysics and technology : a symposium honoring Thomas G. Phillip. ASP Conference Series. No.417. Astronomical Society of the Pacific , San Francisco, CA, pp. 231-242. ISBN 978-1-58381-714-8.

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The section of the electromagnetic spectrum extending roughly from wavelengths of 3 mm to 30 μm is commonly known as the far-infrared or TeraHertz (THz) region. It contains the great majority of the photons emitted by the universe, and THz observations of molecules and dust are able penetrate deeply into molecular clouds, thus revealing the full history of star and planet formation. Accordingly, the upcoming deployments of the Herschel, ALMA, and SOFIA observatories promise to revolutionize our understanding of THz astrophysics. To fully realize this promise, however, it is essential that we achieve a quantitative experimental understanding of the dust, ice, and gas which make up the ISM. After outlining the tremendous impact that Tom Phillips has had on astronomical applications of THz radiation, this contribution will describe how emerging technologies in ultrafast lasers are enabling the development of integrated frequency- and time-domain THz facilities that can acquire high dynamic range optical constants of the major components that comprise astrophysical dust, ice and organics across the full wavelength region accessible to Herschel and other THz observatories.

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Blake, Geoffrey A.0000-0003-0787-1610
Additional Information:© 2009 Astronomical Society of the Pacific. The research described here was largely made possible by the career-long accomplishments of Tom Phillips, to whom I owe an enormous personal and professional debt. I would also like to acknowledge the many students and postdoctoral fellows at Caltech and at Leiden in the group of Prof. Ewine van Dishoeck whom it has been my great privilege to mentor in turn.
Series Name:ASP Conference Series
Issue or Number:417
Record Number:CaltechAUTHORS:20100913-160800759
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19922
Deposited By: Tony Diaz
Deposited On:16 Sep 2010 22:53
Last Modified:03 Oct 2019 02:03

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