A picosecond time-resolved photoluminescence microscope with detection at wavelengths greater than 1500 nm

J. M. Smith, P. A. Hiskett, I. Gontijo, L. Purves, G. S. Buller

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We describe a picosecond resolution time-resolved photoluminescence microscope with high detection sensitivity at wavelengths extending beyond 1500 nm. The instrument performs time-correlated single photon counting using an InGaAs/InP single photon avalanche diode as a detector, and provides temporal resolution of less than 300 ps (full width at half maximum) and spatial resolution down to 4 µm at a sample temperature between 4 and 300 K. Analysis of noise characteristics indicates the ability to measure the excess carrier lifetimes of semiconductor devices with excited carrier densities of less than 1014cm-3. © 2001 American Institute of Physics.

Original languageEnglish
Pages (from-to)2325-2329
Number of pages5
JournalReview of Scientific Instruments
Volume72
Issue number5
DOIs
Publication statusPublished - 2001

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