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Title: Novel THz Radiation Sources


We discuss three novel terahertz (THz) radiation sources which all have the potential for producing high power, tunable frequency pulses of coherent THz radiation.

 [1];  [2]
  1. University of Southern California, Los Angeles, CA 90089 (United States)
  2. University of California, Los Angeles, CA 90095 (United States)
Publication Date:
OSTI Identifier:
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 807; Journal Issue: 1; Conference: 7. workshop on high energy density and high power RF, Kalamata (Greece), 13-17 Jun 2005; Other Information: DOI: 10.1063/1.2158803; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States

Citation Formats

Muggli, Patric, and Tochitsky, Sergei Ya. Novel THz Radiation Sources. United States: N. p., 2006. Web. doi:10.1063/1.2158803.
Muggli, Patric, & Tochitsky, Sergei Ya. Novel THz Radiation Sources. United States. doi:10.1063/1.2158803.
Muggli, Patric, and Tochitsky, Sergei Ya. Tue . "Novel THz Radiation Sources". United States. doi:10.1063/1.2158803.
title = {Novel THz Radiation Sources},
author = {Muggli, Patric and Tochitsky, Sergei Ya.},
abstractNote = {We discuss three novel terahertz (THz) radiation sources which all have the potential for producing high power, tunable frequency pulses of coherent THz radiation.},
doi = {10.1063/1.2158803},
journal = {AIP Conference Proceedings},
number = 1,
volume = 807,
place = {United States},
year = {Tue Jan 03 00:00:00 EST 2006},
month = {Tue Jan 03 00:00:00 EST 2006}
  • P-type InAs excited by ultrashort optical pulses has been shown to be a strong emitter of terahertz radiation. In a direct comparison between a p-InAs emitter and conventional thermal radiation sources, we demonstrate that under typical excitation conditions p-InAs produces more radiation below 1.2 THz than a globar. By treating the globar as a blackbody emitter we calibrate a silicon bolometer which is used to determine the power of the p-InAs emitter. The emitted terahertz power was found to be 98{+-}10 nW in this experiment.
  • We report the production of high power (20 watts average, {approx} 1 Megawatt peak) broadband THz light based on coherent emission from relativistic electrons. Such sources are ideal for imaging, for high power damage studies and for studies of non-linear phenomena in this spectral range. We describe the source, presenting theoretical calculations and their experimental verification. For clarity we compare this source to one based on ultrafast laser techniques.
  • No abstract prepared.
  • Two types of terahertz sources with two-section periodical waveguide structure are studied by simulations. The operation frequency of the rear section (section-II) is the fourth harmonic of that of the front section (section-I), and section-II can operate both in the forward wave region and backward wave region. The critical factor that may affect the proper functioning of this kind of sources—overbunching—is discussed, and the corresponding solutions are proposed. These sources, with millimeter in length, can generate 1 THz wave radiation with power over 1 W, so, they are promising table-top and relatively high power terahertz sources.
  • In this paper the prospects of terahertz (THz) pulses generated at 4th generation X-ray light sources are presented on the example of recent results from a prototype set-up at the soft X-ray FEL FLASH. It is shown, that the THz pulses from the relativistic ultra short electron bunches have unique properties, that at FLASH are utilized for novel THz pump X-ray probe experiments with a robust few fs resolution. Based on these experiences it is discussed, how future facilities can benefit from implementation of similar or further improved instrumentation.