Holographic 3D tracking of microscopic tools

Jesper Glückstad (Invited author), Mark Jayson Villangca (Invited author), Andrew Rafael Bañas (Invited author), Darwin Palima (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

We originally proposed and experimentally demonstrated the targeted-light delivery capability of so-called Wave-guided Optical Waveguides (WOWs) three years ago. As these WOWs are maneuvered in 3D space, it is important to maintain efficient light coupling through their integrated waveguide structures. In this work we demonstrate the use of real-time diffractive techniques to create focal spots that can dynamically track and couple to the WOWs during operation in a volume. This is done by using a phase-only spatial light modulator to encode the needed diffractive phase patterns to generate a plurality of dynamic coupling spots. In addition, we include our proprietary GPC Light Shaper before the diffractive setup to efficiently illuminate the rectangular shaped spatial light modulator by a Gaussian laser beam. The method is initially tested for a single WOW and we have experimentally demonstrated dynamic tracking and coupling for both lateral and axial displacements of the WOWs. The ability to switch from on-demand to continuous addressing with efficient illumination leverages our WOWs for potential applications in near-field stimulation and nonlinear optics at small scales.
Original languageEnglish
Title of host publicationProceedings of SPIE : Optical Pattern Recognition XXVI
Number of pages7
Volume9477
PublisherSPIE - International Society for Optical Engineering
Publication date2015
Article number947702
DOIs
Publication statusPublished - 2015
EventOptical Pattern Recognition XXVI: SPIE Conference 9477 - Baltimore Convention Center, Baltimore, Maryland, United States
Duration: 20 Apr 201524 Apr 2015

Conference

ConferenceOptical Pattern Recognition XXVI
LocationBaltimore Convention Center
CountryUnited States
CityBaltimore, Maryland
Period20/04/201524/04/2015
SeriesProceedings of SPIE, the International Society for Optical Engineering
Volume9477
ISSN0277-786X

Bibliographical note

Copyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

  • Microfabrication
  • Optical trapping
  • Object tracking
  • Diffractive optics
  • Generalized Phase Contrast

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