Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88096
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dc.contributor.authorMuttikulangara, Sanathanan Swaminathanen
dc.contributor.authorBaranski, Maciejen
dc.contributor.authorRehman, Shakilen
dc.contributor.authorHu, Liangxingen
dc.contributor.authorMiao, Jianminen
dc.date.accessioned2018-03-07T05:37:17Zen
dc.date.accessioned2019-12-06T16:55:54Z-
dc.date.available2018-03-07T05:37:17Zen
dc.date.available2019-12-06T16:55:54Z-
dc.date.issued2017en
dc.identifier.citationMuttikulangara, S. S., Baranski, M., Rehman, S., Hu, L., & Miao, J. (2017). MEMS Tunable Diffraction Grating for Spaceborne Imaging Spectroscopic Applications. Sensors, 17(10), 2372-.en
dc.identifier.issn1424-8220en
dc.identifier.urihttps://hdl.handle.net/10356/88096-
dc.description.abstractDiffraction gratings are among the most commonly used optical elements in applications ranging from spectroscopy and metrology to lasers. Numerous methods have been adopted for the fabrication of gratings, including microelectromechanical system (MEMS) fabrication which is by now mature and presents opportunities for tunable gratings through inclusion of an actuation mechanism. We have designed, modeled, fabricated and tested a silicon based pitch tunable diffraction grating (PTG) with relatively large resolving power that could be deployed in a spaceborne imaging spectrometer, for example in a picosatellite. We have carried out a detailed analytical modeling of PTG, based on a mass spring system. The device has an effective fill factor of 52% and resolving power of 84. Tuning provided by electrostatic actuation results in a displacement of 2.7 μm at 40 V . Further, we have carried out vibration testing of the fabricated structure to evaluate its feasibility for spaceborne instruments.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipEDB (Economic Devt. Board, S’pore)en
dc.format.extent13 p.en
dc.language.isoenen
dc.relation.ispartofseriesSensorsen
dc.rights© 2017 by The Author(s). Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en
dc.subjectTunable Diffraction Gratingen
dc.subjectOptical Componentsen
dc.titleMEMS Tunable Diffraction Grating for Spaceborne Imaging Spectroscopic Applicationsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen
dc.contributor.researchSingapore-MIT Alliance Programmeen
dc.identifier.doi10.3390/s17102372en
dc.description.versionPublished versionen
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