Architecture, development and implementation of a SWIR to visible integrated up-conversion imaging device

Gabby Sarusi, Tzvi Templeman, Elad Hechster, Nimrod Nissim, Vladimir Vitenberg, Nitzan Maman, Amir Tal, Assi Solodar, Guy Makov, Ibrahim Abdulhalim, Iris Visoly-Fisher, Yuval Golan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations


A new concept of short wavelength infrared (SWIR) to visible upconversion integrated imaging device is proposed, modeled and some initial measured results are presented. The device is a hybrid inorganic-organic device that comprises six nano-metric scale sub-layers grown on n-Type GaAs substrates. The first layer is a ∼300nm thick PbSe nano-columnar absorber layer grown in (111) orientation to the substrate plan (100), with a diameter of 8-10nm and therefore exhibit quantum confinement effects parallel to the substrate and bulk properties perpendicular to it. The advantage of this structure is the high oscillator strength and hence absorption to incoming SWIR photons while maintaining the high bulk mobility of photo-excited charges along the columns. The top of the PbSe absorber layer is coated with 20nm thick metal layer that serves as a dual sided mirror, as well as a potentially surface plasmon enhanced absorption in the PbSe nano-columns layer. The photo-excited charges (holes and electrons in opposite directions) are drifted under an external applied field to the OLED section (that is composed of a hole transport layer, an emission layer and an electron transport layer) where they recombine with injected electron from the transparent cathode and emit visible light through this cathode. Due to the high absorption and enhanced transport properties this architecture has the potential of high quantum efficiency, low cost and easy implementation in any optical system. As a bench-mark, alternative concept where InGaAs/InP heterojunction couple to liquid crystal optical spatial light modulator (OSLM) structure was built that shows a full upconversion to visible of 1550nm laser light.

Original languageEnglish
Title of host publicationNanophotonics VI
EditorsJean-Michel Nunzi, David L. Andrews, Andreas Ostendorf
ISBN (Electronic)9781510601291
StatePublished - 1 Jan 2016
EventNanophotonics VI - Brussels, Belgium
Duration: 3 Apr 20167 Apr 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceNanophotonics VI


  • Nano-Column
  • OLED
  • PbSe
  • Plasmons enhanced absorption
  • SWIR
  • Upconversion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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