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Title: Time and spectrum-resolving multiphoton correlator for 300–900 nm

We demonstrate a single-photon sensitive spectrometer in the visible range, which allows us to perform time-resolved and multi-photon spectral correlation measurements at room temperature. It is based on a monochromator composed of two gratings, collimation optics, and an array of single photon avalanche diodes. The time resolution can reach 110 ps and the spectral resolution is 2 nm/pixel, limited by the design of the monochromator. This technique can easily be combined with commercial monochromators and can be useful for joint spectrum measurements of two photons emitted in the process of parametric down conversion, as well as time-resolved spectrum measurements in optical coherence tomography or medical physics applications.
Authors:
; ;  [1] ;  [1] ;  [2] ; ;  [3]
  1. Institute for Quantum Computing and Department for Physics and Astronomy, University of Waterloo, 200 University Ave. West, Waterloo, Ontario N2L 3G1 (Canada)
  2. (Poland)
  3. Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano (Italy)
Publication Date:
OSTI Identifier:
22305775
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 14; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COLLIMATORS; CONVERSION; CORRELATIONS; EMISSION; MONOCHROMATORS; MULTI-PHOTON PROCESSES; OPTICS; PHOTODETECTORS; PHOTONS; SPECTRA; SPECTROMETERS; TEMPERATURE RANGE 0273-0400 K; TIME RESOLUTION; TOMOGRAPHY