Title :
Propagation of two-dimensional optical wave through metal gaps with nanometer-order thickness (/spl Lt//spl lambda//sub 0/)
Author :
Takahara, J. ; Yamauchi, T. ; Murata, H. ; Kobayashi, T.
Author_Institution :
Graduate Sch. of Eng. Sci., Osaka Univ., Japan
Abstract :
Summary form only given. The size of optical devices is limited to wavelength-order due to diffraction. Metal is known as a negative dielectric (ND) at visible and IR range. For example, coupled surface plasmon polariton (SPP) in thin metal gap structure (ND gap) is a 2D optical wave. In the previous studies, we have shown that 2D optical wave in ND gap can be confined and guided in a nanometer-order core structure. We stress that a 2D optical waveguide is not a conventional waveguide, but principally a new one. Here, we report the experimental results of 2D optical waveguide. We measured the propagation loss of a 2D optical wave in NDgap.
Keywords :
nanostructured materials; optical losses; optical waveguides; polaritons; surface plasmons; 2D optical wave; 2D optical waveguide; IR range; conventional waveguide; coupled surface plasmon polariton; diffraction; nanometer-order core structure; nanometer-order thickness; negative dielectric; optical device size; optical waveguide; propagation loss measurement; thin metal gap structure; two-dimensional optical wave propagation; wavelength-order; Dielectrics; Neodymium; Optical coupling; Optical devices; Optical diffraction; Optical propagation; Optical surface waves; Optical waveguides; Plasmons; Surface waves;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
DOI :
10.1109/QELS.1999.807548
