TY - GEN
T1 - On-chip superfocusing of surface plasmon using metal-coat tapered optical fiber pairs with nano-gap structures
AU - Yamamoto, Kazuhiro
AU - Yokoyama, Shiyoshi
AU - Otomo, Akira
PY - 2013
Y1 - 2013
N2 - Surface plasmons are coupling waves of electron and electromagnetic field at interfaces of metal and dielectrics or metallic nanostructures and localize at the boundary with nanoscale distribution. So, by using surface plasmons, one can construct integrated optical systems to overcome the diffraction limit of light. Recently, a special electromagnetic mode, called superfocusing modes, is important in this research area, owing to high field concentration effect due to increasing of wavenumber of surface plasmons. Metal-coat tapered optical fibers are commonly used for the probes of near-field microscopy and are suitable for fabrication of these superfocusing devices. Furthermore, when these probes are arranged face to face with nano-scale gap, the electric fields in nano-gap also can be enhanced. In this presentation, we show the fabrication processes and numerical analysis of these metal cone structures consist of tapered optical fiber pairs on chip.
AB - Surface plasmons are coupling waves of electron and electromagnetic field at interfaces of metal and dielectrics or metallic nanostructures and localize at the boundary with nanoscale distribution. So, by using surface plasmons, one can construct integrated optical systems to overcome the diffraction limit of light. Recently, a special electromagnetic mode, called superfocusing modes, is important in this research area, owing to high field concentration effect due to increasing of wavenumber of surface plasmons. Metal-coat tapered optical fibers are commonly used for the probes of near-field microscopy and are suitable for fabrication of these superfocusing devices. Furthermore, when these probes are arranged face to face with nano-scale gap, the electric fields in nano-gap also can be enhanced. In this presentation, we show the fabrication processes and numerical analysis of these metal cone structures consist of tapered optical fiber pairs on chip.
UR - http://www.scopus.com/inward/record.url?scp=84878326399&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84878326399&partnerID=8YFLogxK
U2 - 10.1117/12.2001735
DO - 10.1117/12.2001735
M3 - Conference contribution
AN - SCOPUS:84878326399
SN - 9780819494016
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Photonic and Phononic Properties of Engineered Nanostructures III
T2 - Photonic and Phononic Properties of Engineered Nanostructures III
Y2 - 3 February 2013 through 7 February 2013
ER -