96 dB linear high dynamic range CAOS spectrometer demonstration

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dc.contributor.authorMazhar, Mohsin A.
dc.contributor.authorRiza, Nabeel A.
dc.date.accessioned2020-11-17T12:48:04Z
dc.date.available2020-11-17T12:48:04Z
dc.date.issued2020-11-16
dc.date.updated2020-11-17T12:33:49Z
dc.description.abstractFor 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.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMazhar, M. A. and Riza, N. A. (2020) '96 dB Linear High Dynamic Range CAOS Spectrometer Demonstration', IEEE Photonics Technology Letters, doi: 10.1109/LPT.2020.3038062en
dc.identifier.doi10.1109/LPT.2020.3038062en
dc.identifier.endpage4en
dc.identifier.issn1941-0174
dc.identifier.journaltitleIEEE Photonics Technology Lettersen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/10766
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urihttps://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 worksen
dc.subjectSpectrometeren
dc.subjectDigital Micromirror Deviceen
dc.subjectSpectroscopyen
dc.subjectOptical MEMSen
dc.subjectHigh Dynamic Rangeen
dc.title96 dB linear high dynamic range CAOS spectrometer demonstrationen
dc.typeConference itemen
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