T-Rays Reveal Hidden Art

April 2008
Science Teacher;Apr/May2008, Vol. 75 Issue 4, p14
Academic Journal
The article reports on t-rays or pulses of terahertz radiation, that can be used to reveal murals hidden beneath coats of paint in centuries-old buildings. According to engineering researchers from the University of Michigan, t-rays could also illuminate penciled sketches under paintings on canvas without harming the artwork. The researchers working on t-rays believe that this technique can see even deeper.


Related Articles

  • Nuclear Kitsch.  // Mother Jones;Jan/Feb2002, Vol. 27 Issue 1, p68 

    Focuses on the nuclear murals in Pakistan. Recognition of Pakistan as the only Muslim nuclear state; Presence of pop arts of physicist and Father of the Bomb' Abdel Qadweer Khan on buses and tanker trucks; Symbolism of missiles as strength and unity of the region.

  • Excitation of terahertz radiation by laser pulses in nonuniform plasma channels. Antonsen Jr., Thomas M.; Palastro, John; Milchberg, Howard M. // Physics of Plasmas;Mar2007, Vol. 14 Issue 3, p033107 

    The excitation of terahertz radiation by laser pulses propagating in miniature plasma channels is considered. Generation of radiation by laser pulses in uniform plasmas is generally minimal. However, if one considers propagation in corrugated plasma channels, conditions for radiation generation...

  • Tuning fork at room temperature detects terahertz radiation.  // Laser Focus World;Sep2009, Vol. 45 Issue 9, p9 

    The article reports on a simple detector device for terahertz radiation that functions at room temperature created by researchers at Clausthal University of Technology in Goslar, Germany, the Laboratorio NEST in Pisa, Italy and the University of Cambridge in Cambridge, England. It notes that the...

  • Terahertz detector based on a superconducting tunnel junction coupled to a thin superconductor film. Ariyoshi, Seiichiro; Taino, Tohru; Dobroiu, Adrian; Sato, Hiromi; Matsuo, Hiroshi; Otani, Chiko // Applied Physics Letters;11/9/2009, Vol. 95 Issue 19, p193504 

    The principle of a terahertz detector using a superconducting tunnel junction (STJ) coupled to a large terahertz-absorbing superconductor film is verified. We have detected terahertz radiation based on the Cooper-pair breaking process, and confirmed that the sensitivity has a sharp increase...

  • Influence of uniaxial stress on stimulated terahertz emission from phosphor and antimony donors in silicon. Zhukavin, R. Kh.; Tsyplenkov, V. V.; Kovalevsky, K. A.; Shastin, V. N.; Pavlov, S. G.; Böttger, U.; Hübers, H.-W.; Riemann, H.; Abrosimov, N. V.; Nötzel, N. // Applied Physics Letters;1/29/2007, Vol. 90 Issue 5, p051101 

    The effect of uniaxial stress on terahertz stimulated emission from phosphor and antimony donors in silicon excited by CO2 laser radiation was studied. The laser action originates from 2p0→1s(T2) intracenter transitions. A compressive force applied to the silicon crystal decreases the...

  • Subsurface probing of terahertz particle plasmons. Chau, K. J.; Rieckmann, K. M.; Elezzabi, A. Y. // Applied Physics Letters;3/26/2007, Vol. 90 Issue 13, p131114 

    Here, the authors exploit the potential barrier at the interface between dissimilar metals to probe frequency dependent subsurface charge induction on metallic microparticles excited with terahertz radiation. The authors’ experimental data and model show that terahertz electromagnetic...

  • Experimental demonstration of frequency-agile terahertz metamaterials. Hou-Tong Chen; O'Hara, John F.; Azad, Abul K.; Taylor, Antoinette J.; Averitt, Richard D.; Shrekenhamer, David B.; Padilla, Willie J. // Nature Photonics;May2008, Vol. 2 Issue 5, p295 

    Metamaterials exhibit numerous novel effects and operate over a large portion of the electromagnetic spectrum. Metamaterial devices based on these effects include gradient-index lenses, modulators for terahertz radiation and compact waveguides. The resonant nature of metamaterials results in...

  • Continuous-wave terahertz imaging with a hybrid system. Löffler, Torsten; May, Thilo; am Weg, Christian; Alcin, Ali; Hils, Bernd; Roskos, Hartmut G. // Applied Physics Letters;2/26/2007, Vol. 90 Issue 9, p091111 

    The authors have developed a hybrid system for coherent raster-scan imaging at 0.6 THz. It combines a high-power electronic source (a multiplied Gunn emitter) with a femtosecond Ti:sapphire laser in order to achieve a high dynamic range via electro-optic detection. The single-scan dynamic range...

  • Erratum to: Contribution to the improvement of heritage mural painting non-destructive testing by stimulated infrared thermography. Bodnar, Jean-Luc; Mouhoubi, Kamel; Di Pallo, Luigi; Detalle, Vincent; Vallet, Jean-Marc; Duvaut, Thierry // European Physical Journal - Applied Physics;Oct2013, Vol. 64 Issue 1, p00 

    A correction to the article "Contribution to the improvement of heritage mural painting non-destructive testing by stimulated infrared thermography" that was published in a 2013 issue is presented.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics