University of Illinois Urbana-Champaign

A Low-cost Chirped-pulse Fourier Transform Microwave Spectrometer For Undergraduate Physical Chemistry Lab

Carroll, Brandon

Content Files
RE01_Abstract.pdf
RE01_Abstract.txt
RE01_Presentation.pptx

Permalink

https://hdl.handle.net/2142/51160

Description

Title
A Low-cost Chirped-pulse Fourier Transform Microwave Spectrometer For Undergraduate Physical Chemistry Lab
Author(s)
Carroll, Brandon
Contributor(s)
  • Blake, Geoffrey
  • Finneran, Ian
Issue Date
2014-06-19
Keyword(s)
Chirped pulse
Date of Ingest
  • 2014-09-17T16:56:19Z
  • 2015-04-14T18:42:17Z
Abstract
We present the design and construction of a simple and low-cost waveguide chirped pulse Fourier transform microwave (CP-FTMW) spectrometer suitable for gas-phase rotational spectroscopy experiments in undergraduate physical chemistry labs as well as graduate level research. The spectrometer operates with modest bandwidth, using phased locked loop (PLL) microwave sources and a direct digital synthesis (DDS) chirp source, making it an affordable for undergraduate labs. The performance of the instrument is benchmarked by acquiring the pure rotational spectrum of the J = 1 - 0 transition OCS and its isotopologues from 11-12.5 GHz.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
English
Permalink
http://hdl.handle.net/2142/51160
DOI
https://doi.org/10.15278/isms.2014.RE01
Copyright and License Information
Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

Owning Collections

Abstracts & Presentations - 2014 International Symposium on Molecular Spectroscopy PRIMARY