Abstract

A trapped-particle near-field scanning optical microscope is constructed by use of submicrometer- or micrometer-sized metallic particles (gold and silver) to increase scattering efficiency. The image contrast of the evanescent-wave interference pattern on the surface of a prism upon total internal reflection, obtained with trapped gold particles of diameter 0.1 and 2 μm, is improved by a factor of approximately 2 and 1.5, respectively, compared with that obtained with trapped polystyrene particles of similar size. The use of a 2μm gold particle leads to image contrast that is approximately three times as great as that obtained with a 0.1μm gold particle, and interference patterns of a subwavelength period are obtained in both cases.

© 1999 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Characterization of trapping force on metallic Mie particles

Pu Chun Ke and Min Gu
Appl. Opt. 38(1) 160-167 (1999)

Stochastic 3D optical mapping by holographic localization of Brownian scatterers

Ariadna Martinez-Marrades, Jean-François Rupprecht, Michel Gross, and Gilles Tessier
Opt. Express 22(23) 29191-29203 (2014)

Optical trapping of microscopic metal particles

Shunichi Sato, Yasunori Harada, and Yoshio Waseda
Opt. Lett. 19(22) 1807-1809 (1994)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription