The investigation of the subwavelength focusing spot resulting from modified surface plasmon wave at planar interface

Jenq-Nan Yih; Shean-Jen Chen; Shuan-Teng Hong; Han-Fai Yau

doi:10.1117/12.702322

12 February 2007 The investigation of the subwavelength focusing spot resulting from modified surface plasmon wave at planar interface

Jenq-Nan Yih, Shean-Jen Chen, Shuan-Teng Hong, Han-Fai Yau

Author Affiliations +

Proceedings Volume 6447, Nanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV; 64470Q (2007) https://doi.org/10.1117/12.702322
Event: SPIE BiOS, 2007, San Jose, California, United States

Abstract

This paper proposes a technique of realizing sub-wavelength focusing spot on surface by modifying the spatial phase in far-field. This focusing spot will use to detect the spectrum of the monolayer biomolecules on the planar surface. Taking the advantage of modifying spatial phase and polarization of incident laser beam, the field distribution in near-field (near focal point) can be changed and can achieve to the smallest spot size of sub-wavelength under the reasonable adjustment of the phase and polarization of incident beam in far-field. Although nano-scale light sources can produce by labelling dye on nanoparticles, quantum dots etc., but technically it is not easy to finely manipulate nanoparticles. On the contrary, using the planar thin film of matured, reliable fabrication processes, not only the near-field twisted electromagnetic of nanostructure can be eliminated, but also fixing the biomolecules on planar surface makes its arrangement to have the consistent direction, thereupon the overall behavior of molecular vibration is simple, pure, and advantageous to detect the vibrational spectra of the monolayer molecules on surface.

Citation Download Citation

Jenq-Nan Yih, Shean-Jen Chen, Shuan-Teng Hong, and Han-Fai Yau "The investigation of the subwavelength focusing spot resulting from modified surface plasmon wave at planar interface", Proc. SPIE 6447, Nanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV, 64470Q (12 February 2007); https://doi.org/10.1117/12.702322

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Polarization

Transmittance

Surface plasmons

Interfaces

Metals

Molecules

Near field

Show All Keywords

Keywords/Phrases

Search In:

Publication Years