Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Quantifying heat transfer in DMD-based optoelectronic tweezers with infrared thermography

[+] Author Affiliations
Peter J. Pauzauskie

Lawrence Livermore National Lab. (USA)

Hsan-Yin Hsu, Arash Jamshidi, Justin K. Valley, Shao Ning Pei, Ming C. Wu

Univ. of California, Berkeley (USA)

Proc. SPIE 7596, Emerging Digital Micromirror Device Based Systems and Applications II, 759609 (February 10, 2010); doi:10.1117/12.846247
Text Size: A A A
From Conference Volume 7596

  • Emerging Digital Micromirror Device Based Systems and Applications II
  • Michael R. Douglass; Larry J. Hornbeck
  • San Francisco, California | January 23, 2010

abstract

Optoelectronic tweezers (OET) have emerged in recent years as a powerful form of optically-induced dielectrophoresis for addressing single cells and trapping individual nanostructures with DMD-based virtual-electrodes. In this technique an alternating electric field is used to induce a dipole within structures of interest while very low-intensity optical images are used to produce local electric field gradients that create dynamic trapping potentials. Addressing living cells, particularly for heat-sensitive cell lines, with OET's optical virtual-electrodes requires an in-depth understanding of heating profiles within OET devices. In this work we present quantitative measurements of the thermal characteristics of single-crystalline-silicon phototransistor based optoelectronic tweezers (PhOET). Midwave infrared (3 - 5 micron) thermographic imaging is used to determine relative heating in PhOET devices both with and without DMD-based optical actuation. Temperature increases of approximately 2°C from electrolyte Joule-heating are observable in the absence of DMD-illumination when glass is used as a support for PhOET devices. An additional temperature increase of no more than 0.2°C is observed when DMD-illumination is used. Furthermore, significantly reduced heating can be achieved when devices are fabricated in direct contact with a metallic heat-sink.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Peter J. Pauzauskie ; Hsan-Yin Hsu ; Arash Jamshidi ; Justin K. Valley ; Shao Ning Pei, et al.
"Quantifying heat transfer in DMD-based optoelectronic tweezers with infrared thermography", Proc. SPIE 7596, Emerging Digital Micromirror Device Based Systems and Applications II, 759609 (February 10, 2010); doi:10.1117/12.846247; http://dx.doi.org/10.1117/12.846247


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.