Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

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

Not Accessible

Your library or personal account may give you access

Abstract

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 44mm over a current range of 0 to 2.5A. Actuation of R redirects the grating normal, resulting in a scanning motion of the diffracted beam.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Fluidic actuation of an elastomeric grating

Raphael A. Guerrero, Sarah Jaye C. Oliva, and Johanna Mae M. Indias
Appl. Opt. 51(24) 5812-5817 (2012)

Applications of shape memory alloys in optics

Boonsong Sutapun, Massood Tabib-Azar, and Michael A. Huff
Appl. Opt. 37(28) 6811-6815 (1998)

Large aperture tunable-focus liquid lens using shape memory alloy spring

Nazmul Hasan, Hanseup Kim, and Carlos H. Mastrangelo
Opt. Express 24(12) 13334-13342 (2016)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved