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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 24 — Nov. 21, 2011
  • pp: 24775–24781

Terahertz pinch harmonics enabled by single nano rods

Hyeong-Ryeol Park, Young-Mi Bahk, Jong Ho Choe, Sanghoon Han, Seong Soo Choi, Kwang Jun Ahn, Namkyoo Park, Q-Han Park, and Dai-Sik Kim  »View Author Affiliations


Optics Express, Vol. 19, Issue 24, pp. 24775-24781 (2011)
http://dx.doi.org/10.1364/OE.19.024775


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Abstract

A pinch harmonic (or guitar harmonic) is a musical note produced by lightly pressing the thumb of the picking hand upon the string immediately after it is picked [J. Chem. Educ. 84, 1287 (2007)]. This technique turns off the fundamental and all overtones except those with a node at that location. Here we present a terahertz analogue of pinch harmonics, whereby a metallic nano rod placed at a harmonic node on a terahertz nanoresonator suppresses the fundamental mode, making the higher harmonics dominant. Strikingly, a skin depth-wide nano rod placed at the mid-point turns off all resonances. Our work demonstrates that terahertz electromagnetic waves can be tailored by nanoparticles strategically positioned, paving important path towards terahertz switching and detection applications.

© 2011 OSA

OCIS Codes
(300.6380) Spectroscopy : Spectroscopy, modulation
(300.6495) Spectroscopy : Spectroscopy, teraherz
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Spectroscopy

History
Original Manuscript: September 28, 2011
Revised Manuscript: November 7, 2011
Manuscript Accepted: November 7, 2011
Published: November 17, 2011

Virtual Issues
Vol. 7, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Hyeong-Ryeol Park, Young-Mi Bahk, Jong Ho Choe, Sanghoon Han, Seong Soo Choi, Kwang Jun Ahn, Namkyoo Park, Q-Han Park, and Dai-Sik Kim, "Terahertz pinch harmonics enabled by single nano rods," Opt. Express 19, 24775-24781 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-24-24775


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