A microfluidic 2×2 optical switch

Kyle Campbell*, Alex Groisman, Uriel Levy, Lin Pang, Shayan Mookherjea, Demetri Psaltis, Yeshaiahu Fainman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

77 Scopus citations


A 2×2 microfluidic-based optical switch is proposed and demonstrated. The switch is made of an optically clear silicon elastomer, Polydimethylsiloxane (PDMS), using soft lithography. It has insertion loss smaller than 1 dB and extinction ratio on the order of 20 dB. The device is switching between transmission (bypass) and reflection (exchange) modes within less than 20 ms.

Original languageAmerican English
Pages (from-to)6119-6121
Number of pages3
JournalApplied Physics Letters
Issue number25
StatePublished - 20 Dec 2004
Externally publishedYes

Bibliographical note

Funding Information:
This research has been partially supported by DARPA, NSF, and AFOSR.


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