Files in this item
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application/vnd.openxmlformats-officedocument.presentationml.presentation ![]() | Presentation | Microsoft PowerPoint 2007 |
application/pdf ![]() | Abstract |
Description
Title: | FAST SWEEPING DIRECT ABSORPTION (SUB)MILLIMETER SPECTROSCOPY BASED ON CHIRPED-PULSE TECHNOLOGY |
Author(s): | Hays, Brian |
Contributor(s): | Widicus Weaver, Susanna L.; Shipman, Steven |
Subject(s): | Instrument/Technique Demonstration |
Abstract: | Chriped-pulse Fourier Transform Microwave (CP-FTMW) technology has transformed traditional microwave spectroscopy into a rapid-acquisition, broadband spectral technique. The CP-FT technique has recently been expanded to the millimeter-wave region, but this approach requires costly equipment that is not readily available in most spectroscopy labs. To overcome this challenge, a new experiment has been designed that combines the broadband aspects of CP-FTMW with the high sensitivity of (sub) millimeter absorption spectroscopy. Using the arbitrary waveform generator from a CP-FTMW experiment, and the frequency multipliers and hot electron bolometer detector from a (sub) millimeter wave experiment, we have designed and benchmarked a highly sensitive spectrometer that offers broad spectral coverage and rapid spectral acquisition speeds. This technique is comparable in performance to other rapid-acquisition techniques currently used in the (sub) millimeter range, but offers more sensitivity after averaging. The design of this instrument and the benchmarking results will be presented. |
Issue Date: | 23-Jun-15 |
Publisher: | International Symposium on Molecular Spectroscopy |
Citation Info: | ACS |
Genre: | CONFERENCE PAPER/PRESENTATION |
Type: | Text |
Language: | English |
URI: | http://hdl.handle.net/2142/79112 |
Date Available in IDEALS: | 2016-01-05 |