Deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy

A concave diffraction grating with a tunable radius of curvature R is fabricated by embedding a nitinol wire within an elastomeric grating replica. Curvature of the grating is controlled via the shape memory effect, where strain in the wire is recovered due to martensite–austenite phase transformati...

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Main Authors: Guerrero, Raphael A, Sze, Michelle Wynne C, Batiller, Jose Ramon A
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Published: Archīum Ateneo 2010
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Online Access:https://archium.ateneo.edu/physics-faculty-pubs/55
https://www.osapublishing.org/ao/abstract.cfm?uri=ao-49-19-3634
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Institution: Ateneo De Manila University
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spelling ph-ateneo-arc.physics-faculty-pubs-10542020-09-10T06:10:31Z Deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy Guerrero, Raphael A Sze, Michelle Wynne C Batiller, Jose Ramon A A concave diffraction grating with a tunable radius of curvature R is fabricated by embedding a nitinol wire within an elastomeric grating replica. Curvature of the grating is controlled via the shape memory effect, where strain in the wire is recovered due to martensite–austenite phase transformations induced by resistive heating. The generated force bends the grating into a variable curvature determined by applied current. The radius of curvature for the concave grating is variable from 170 to 44 mm over a current range of 0 to 2.5 A. Actuation of R redirects the grating normal, resulting in a scanning motion of the diffracted beam. 2010-01-01T08:00:00Z text https://archium.ateneo.edu/physics-faculty-pubs/55 https://www.osapublishing.org/ao/abstract.cfm?uri=ao-49-19-3634 Physics Faculty Publications Archīum Ateneo Optics Physics
institution Ateneo De Manila University
building Ateneo De Manila University Library
country Philippines
collection archium.Ateneo Institutional Repository
topic Optics
Physics
spellingShingle Optics
Physics
Guerrero, Raphael A
Sze, Michelle Wynne C
Batiller, Jose Ramon A
Deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy
description A concave diffraction grating with a tunable radius of curvature R is fabricated by embedding a nitinol wire within an elastomeric grating replica. Curvature of the grating is controlled via the shape memory effect, where strain in the wire is recovered due to martensite–austenite phase transformations induced by resistive heating. The generated force bends the grating into a variable curvature determined by applied current. The radius of curvature for the concave grating is variable from 170 to 44 mm over a current range of 0 to 2.5 A. Actuation of R redirects the grating normal, resulting in a scanning motion of the diffracted beam.
format text
author Guerrero, Raphael A
Sze, Michelle Wynne C
Batiller, Jose Ramon A
author_facet Guerrero, Raphael A
Sze, Michelle Wynne C
Batiller, Jose Ramon A
author_sort Guerrero, Raphael A
title Deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy
title_short Deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy
title_full Deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy
title_fullStr Deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy
title_full_unstemmed Deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy
title_sort deformable curvature and beam scanning with an elastomeric concave grating actuated by a shape memory alloy
publisher Archīum Ateneo
publishDate 2010
url https://archium.ateneo.edu/physics-faculty-pubs/55
https://www.osapublishing.org/ao/abstract.cfm?uri=ao-49-19-3634
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