Optical Design and Engineering

Optical wavelength tuning via actuation of a fluidic grating

[+] Author Affiliations
Raphael A. Guerrero

Ateneo de Manila University, Department of Physics, Loyola Heights, Quezon City 1108, Philippines

Sarah Jaye C. Oliva

Ateneo de Manila University, Department of Physics, Loyola Heights, Quezon City 1108, Philippines

Opt. Eng. 53(2), 025104 (Feb 20, 2014). doi:10.1117/1.OE.53.2.025104
History: Received August 28, 2013; Revised January 13, 2014; Accepted January 23, 2014
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Abstract.  Deformable optical elements may be physically altered through fluid displacement. We imprint a grating surface onto an elastomeric membrane by soft lithography. The membrane is installed as a flexible wall of a sealed fluidic chamber. Injection of excess fluid into the chamber induces expansion of the membrane, effectively varying the groove spacing of the imprinted grating. In transmission experiments using a broadband light source, we are able to achieve a 127.2-nm shift in peak wavelength with an injected fluid volume of 0.56 ml. A paraboloid model of the change in curvature of the grating during expansion accurately describes our experimental results.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Raphael A. Guerrero and Sarah Jaye C. Oliva
"Optical wavelength tuning via actuation of a fluidic grating", Opt. Eng. 53(2), 025104 (Feb 20, 2014). ; http://dx.doi.org/10.1117/1.OE.53.2.025104


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