1 Ocak 2018 Dergi makalesi Açık Erişim

Cetindag, S. Kaan; Toy, M. Fatih; Ferhanoglu, Onur; Civitci, Fehmi

Dublin Core

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  <dc:creator>Cetindag, S. Kaan</dc:creator>
  <dc:creator>Toy, M. Fatih</dc:creator>
  <dc:creator>Ferhanoglu, Onur</dc:creator>
  <dc:creator>Civitci, Fehmi</dc:creator>
  <dc:date>2018-01-01</dc:date>
  <dc:description>We present a novel spectrometer device offering a wide wavelength range and high resolution. The device builds upon a conventional prism spectrometer; however, an additional scattering medium is introduced to generate a wavelength-dependent speckle pattern on the detector array. Simultaneous use of the prism and the scattering medium allows for both improved resolution and wavelength range. The generated speckle pattern secures a significant improvement in the resolution (up to 100 folds) and dynamic range over a conventional prism spectrometer. With the proposed spectrometer, implemented using a CCD camera, we demonstrate up to 17-pm resolution at 855-nm central wavelength and 756.5-nm wavelength range revealing a dynamic range of similar to 44 500. The dynamic range could be further improved upon using a detector array having larger area and a scattering medium offering a nar-rower spectral correlation function. With further development, the proposed device could be useful in a variety of spectroscopy applications, such as deep imaging of retinal layers in optical coherence tomography.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/29747</dc:identifier>
  <dc:identifier>oai:zenodo.org:29747</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>IEEE PHOTONICS TECHNOLOGY LETTERS 30(24) 2139-2142</dc:source>
  <dc:title>A Speckle-Enhanced Prism Spectrometer With High Dynamic Range</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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