Share Email Print
cover

Proceedings Paper

The effect of the background medium in microsphere-assisted microscopy
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Microsphere-assisted microscopy can be incorporated onto conventional light microscopes allowing wide-field and flourescence imaging with enhanced resolution. The refractive index of the background medium in which the microsphere is placed plays an important role in imaging. In this work, we investigated the effect of the background medium containing the microsphere on imaging properties of the microspheres. We used finite-difference timedomain numerical simulation to investigate the photonic nanojet formation in a microlens. We showed that by fine tuning the refractive index of the background medium, the nanojet properties of a microlens can be optimized for applications where sharp focusing of light is needed. Our results provide a guideline for design optimization of novel microparticle-embedded optical devices.

Paper Details

Date Published: 22 February 2017
PDF: 6 pages
Proc. SPIE 10077, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV, 100770Y (22 February 2017); doi: 10.1117/12.2252674
Show Author Affiliations
Arash Darafsheh, Univ. of Pennsylvania (United States)
Jarod C. Finlay, Univ. of Pennsylvania (United States)


Published in SPIE Proceedings Vol. 10077:
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV
Alexander N. Cartwright; Dan V. Nicolau; Dror Fixler, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray