APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Applied Physics Letters / Volume 93 / Issue 18 / DIELECTRICS AND FERROELECTRICITY

Appl. Phys. Lett. 93, 182904 (2008); doi:10.1063/1.3013349 (3 pages)

Terahertz vibrational absorption spectroscopy using microstrip-line waveguides

M. B. Byrne, J. Cunningham, K. Tych, A. D. Burnett, M. R. Stringer, C. D. Wood, L. Dazhang, M. Lachab, E. H. Linfield, and A. G. Davies

School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom

View MapView Map

(Received 14 August 2008; accepted 14 October 2008; published online 4 November 2008)

We demonstrate that terahertz microstrip-line waveguides can be used to measure absorption spectra of polycrystalline materials with a high frequency resolution ( ∼ 2 GHz) and with a spatial resolution that is determined by the microstrip-line dimensions, rather than the free-space wavelength. The evanescent terahertz-bandwidth electric field extending above the microstrip line interacts with, and is modified by, overlaid dielectric samples, thus enabling the characteristic vibrational absorption resonances in the sample to be probed. As an example, the terahertz absorption spectrum of polycrystalline lactose monohydrate was investigated; the lowest lying mode was observed at 534(±2) GHz, in excellent agreement with free-space measurements. This microstrip technique offers both a higher spatial and frequency resolution than free-space terahertz time-domain spectroscopy and requires no contact between the waveguide and sample.

© 2008 American Institute of Physics

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

dielectric materials, microstrip lines, organic compounds, submillimetre wave measurement, submillimetre wave spectroscopy

PACS

  • 84.40.Az

    Waveguides, transmission lines, striplines

  • 07.57.Pt

    Submillimeter wave, microwave and radiowave spectrometers; magnetic resonance spectrometers, auxiliary equipment, and techniques

  • 77.84.Jd

    Polymers; organic compounds

ARTICLE DATA

Permalink
http://link.aip.org/link/doi/10.1063/1.3013349

PUBLICATION DATA

ISSN:

0003-6951 (print)  
1077-3118 (online)

Publisher:

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    Y. C. Shen, P. C. Upadhya, E. H. Linfield, and A. G. Davies, Appl. Phys. Lett. 87, 011105 (2005)APPLAB000087000001011105000001.

    M. Walther, M. Freeman, and F. A. Hegmann, Appl. Phys. Lett. 87, 261107 (2005)APPLAB000087000026261107000001.

    J. S. Melinger, N. Laman, S. Sree Harsha, and D. Grischkowsky, Appl. Phys. Lett. 89, 251110 (2006)APPLAB000089000025251110000001.

    J. Cunningham, C. D. Wood, A. G. Davies, I. C. Hunter, E. H. Linfield, and H. E. Beere, Appl. Phys. Lett. 86, 213503 (2005)APPLAB000086000021213503000001.

    M. Nagel, P. Haring Bolivar, M. Brucherseifer, and H. Kurtz, Appl. Phys. Lett. 80, 154 (2002)APPLAB000080000001000154000001.

    E. R. Brown, J. E. Bjarnason, A. M. Fedor, and T. M. Korter, Appl. Phys. Lett. 90, 061908 (2007)APPLAB000090000006061908000001.

    J. Kitagawa, T. Ohkubo, M. Onuma, and Y. Kadoya, Appl. Phys. Lett. 89, 041114 (2006)APPLAB000089000004041114000001.

    C. D. Wood, J. Cunningham, P. Uphadya, E. H. Linfield, I. C. Hunter, A. G. Davies, and M. Missous, Appl. Phys. Lett. 88, 142103 (2006)APPLAB000088000014142103000001.


For access to citing articles, you need to log in.


Figures (3)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Terahertz vibrational absorption spectroscopy using microstrip-line waveguides
  2. Self-tuning mechanisms of nonlinear split-ring resonators
Go to AIP Home
Copyright © American Institute of Physics
close