96 dB linear high dynamic range CAOS spectrometer demonstration

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dc.contributor.author Mazhar, Mohsin A.
dc.contributor.author Riza, Nabeel A.
dc.date.accessioned 2020-11-17T12:48:04Z
dc.date.available 2020-11-17T12:48:04Z
dc.date.issued 2020-11-16
dc.identifier.citation Mazhar, M. A. and Riza, N. A. (2020) '96 dB Linear High Dynamic Range CAOS Spectrometer Demonstration', IEEE Photonics Technology Letters, doi: 10.1109/LPT.2020.3038062 en
dc.identifier.startpage 1 en
dc.identifier.endpage 4 en
dc.identifier.issn 1941-0174
dc.identifier.uri http://hdl.handle.net/10468/10766
dc.identifier.doi 10.1109/LPT.2020.3038062 en
dc.description.abstract For the first time, a CAOS (i.e., Coded Access Optical Sensor) spectrometer is demonstrated. The design implemented uses a reflective diffraction grating and a time-frequency CAOS mode operations Digital Micromirror Device (DMD) in combination with a large area point photo-detector to enable highly programmable linear High Dynamic Range (HDR) spectrometry. Experiments are conducted with a 2850 K color temperature light bulb source and visible band color bandpass and high-pass filters as well as neutral density (ND) attenuation filters. A ~369 nm to ~715 nm input light source spectrum is measured with a designed ~1 nm spectral resolution. Using the optical filters and different CAOS modes, namely, Code Division Multiple Access (CDMA), Frequency Modulation (FM)-CDMA and FM-Time Division Multiple Access (TDMA) modes, measured are improving spectrometer linear dynamic ranges of 28 dB, 50 dB, and 96.2 dB, respectively. Applications for the linear HDR CAOS spectrometer includes materials inspection in biomedicine, foods, forensics, and pharmaceuticals. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en
dc.relation.uri https://ieeexplore.ieee.org/document/9258947
dc.rights © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works en
dc.subject Spectrometer en
dc.subject Digital Micromirror Device en
dc.subject Spectroscopy en
dc.subject Optical MEMS en
dc.subject High Dynamic Range en
dc.title 96 dB linear high dynamic range CAOS spectrometer demonstration en
dc.type Conference item en
dc.internal.authorcontactother Nabeel Riza, Electrical & Electronic Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: n.riza@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2020-11-17T12:33:49Z
dc.description.version Accepted Version en
dc.internal.rssid 544246215
dc.description.status Peer reviewed en
dc.identifier.journaltitle IEEE Photonics Technology Letters en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress n.riza@ucc.ie en
dc.internal.bibliocheck In press. Update citation. Add volume, page numbers. en


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