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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 17 — Aug. 13, 2012
  • pp: 19200–19205

Spectrum to space transformed fast terahertz imaging

Steffen Schumann, Christian Jansen, Michael Schwerdtfeger, Stefan Busch, Ole Peters, Maik Scheller, and Martin Koch  »View Author Affiliations

Optics Express, Vol. 20, Issue 17, pp. 19200-19205 (2012)

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We present an imaging technique in which the broadband frequency information of terahertz (THz) pulses is transformed into spatial resolution. Efficient blazed diffractive gratings spread the individual frequency components over a wide and defined spatial range and f-theta optics are employed to focus the individual components onto a one-dimensional image-line. Measuring the time domain waveform of the THz waves allows therefore for a direct reconstruction of spatial sample characteristics as the spatial domain information is encoded in the terahertz spectrum. We will demonstrate terahertz imaging on selected samples with an improvement in acquisition speed up to two orders of magnitude.

© 2012 OSA

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Imaging Systems

Original Manuscript: May 30, 2012
Revised Manuscript: July 13, 2012
Manuscript Accepted: July 13, 2012
Published: August 7, 2012

Steffen Schumann, Christian Jansen, Michael Schwerdtfeger, Stefan Busch, Ole Peters, Maik Scheller, and Martin Koch, "Spectrum to space transformed fast terahertz imaging," Opt. Express 20, 19200-19205 (2012)

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