Modelling photo-detectors in quantum optics

Peter P. Rohde*, Timothy C. Ralph

*Corresponding author for this work

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Photo-detection plays a fundamental role in experimental quantum optics and is of particular importance in the emerging field of linear optics quantum computing. Present theoretical treatment of photo-detectors is highly idealized and fails to consider many important physical effects. We present a physically motivated model for photo-detectors which accommodates for the effects of finite resolution, bandwidth and efficiency, as well as dark counts and dead-time. We apply our model to two simple well-known applications, which illustrates the significance of these characteristics.

Original languageEnglish
Pages (from-to)1589-1603
Number of pages15
JournalJournal of Modern Optics
Volume53
Issue number11
DOIs
Publication statusPublished - 20 Jul 2006

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