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2. Subwavelength and microstructured planar THz waveguides, theory and experiment

Author

Markov, A., Mazhorova, A., Ung, B., Minamide, H., Wang, Y., Ito, H., and Skorobogatiy, M.

Subjects
Physics - Optics
Abstract

Planar dielectric subwavelength waveguides are proposed as waveguides for THz radiation. The waveguide porous design maximizes the fraction of power guided in the air to avoid the complexity that all the materials are highly absorbent in the THz region. Convenient access to the mode region makes them also useful for sensing of biological and chemical specimens in the THz region.

Published
2011

39. Contributor contact details

Author

Saeedkia, Daryoosh, Ung, B., Skorobogatiy, Maksim, Rivas, Jaime Gómez, Zhang, Y., Berrier, A., Kim, D.-S., Bahk, Y.-M., Planken, P.C.M., Knap, Wojciech, Dyakonov, Michel, Federici, John F., Moeller, Lothar, Su, Ke, Son, Joo-Hiuk, Boppel, S., Lisauskas, A., Roskos, Hartmut, Singh, R., Azad, A.K., Zhang, Weili, Theuer, Michael, Ellrich, Frank, Molter, Daniel, Beigang, René, Deninger, Anselm, Nagel, Michael, Kurz, H., Matheisen, C., Kawano, Yukio, Ouchi, Toshihiko, Yasui, Takeshi, Missous, Mohamed, Shibuya, Takayuki, Kawase, Kodo, Riken, Bohn, Matthew J., Petkie, Douglas T., Reid, Matthew, Hartley, I.D., Todoruk, T.M., Shen, Yao-Chun, Jin, Biaobing B., Fukunaga, Kaori, Cai, Yongming, Wang, Zhiyong, and Goyal, Deepak

Published
2013
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41. Enhanced transmission through nano-aperture on a tapered metallic substrate

Author

Wang, C.M., Ung, B., Sheng, Y., and Chang, J.Y.

Subjects
*WAVEGUIDES, *FLUID dynamics, *FLUID mechanics, *SURFACE waves (Fluids)
Abstract

Abstract: The optical transmission and distribution through a subwavelength slit on a tapered metallic substrate was investigated. By using a 45° tapered structure rather than a traditional metallic plate, a 6-fold transmission enhancement could be achieved. This is due to the asymmetrical excitation of surface waves and the matching of propagation constants between the surface waves and slit waveguide. In addition, by patterning surface corrugations in the exit plane, the beam could be focused. By tuning the period of the surface corrugations, we were able to adjust the focal length. For an input wavelength of 0.5μm, the focal point could be kept within 0.6μm with a focal length extending from 0.5μm to 2.5μm and a grating period ranging from 0.5μm to 0.6μm. [Copyright &y& Elsevier]

Published
2006
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46. Readers report.

Author

Papier, William, Lee, Stewart M., Ung, B. A., Jilison, Joe R., Akin, John S., Dorfman, Richard A., Steen, Kristin, Brown, Lawrence C., Edgecombe, Jr., H. C., Reuwee, Dan, Sherman, T. W., Van Zandt, Pieter D., and Hees, Gerald P.

Subjects
LETTERS to the editor, UNEMPLOYMENT, MARKETS, EMPLOYMENT, BUSINESS
Abstract

Several letters to the editor are presented in response to the articles published in previous issues including the article "Special Report," in the November 1, 1982 issue, "Business Tackles Hard-Core Unemployment," in the September 20 issue and "How the Market Leads the Way to Recovery," in the October 11 issue.

Published
1982

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