Speckle-Enhanced Prism Spectrometer

Cetindag S. K., Ferhanoğlu O., Toy M. F., Civitci F.

International Conference on Optical MEMS and Nanophotonics (OMN), Daejeon, South Korea, 28 July - 01 August 2019, pp.84-85 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/omn.2019.8925014
  • City: Daejeon
  • Country: South Korea
  • Page Numbers: pp.84-85
  • Istanbul Technical University Affiliated: Yes

Abstract

We present an improved prism spectrometer with high wavelength range and spectral resolution. The device is an upgraded prism spectrometer that utilizes an additional scattering medium leading to a wavelength-dependent speckle pattern. We demonstrate < 20 pm resolution and similar to 750 nm wavelength range with the proposed device. With the demonstrated spectral resolution, the speckle-enhanced prism could provide the means to image deep tissue layers in Optical Coherence Tomography.