Ultrasensitive mid-infrared up-conversion imaging at few-photon level

Qian Zhou; Kun Huang; Haifeng Pan; E. Wu; Heping Zeng

doi:10.1063/1.4811826

Ultrasensitive mid-infrared up-conversion imaging at few-photon level

Qian Zhou^*
, Kun Huang
, Haifeng Pan
, E. Wu
, Heping Zeng

^*此作品的通讯作者

East China Normal University
University of Shanghai for Science and Technology

科研成果: 期刊稿件 › 文章 › 同行评审

41 引用（Scopus）

摘要

We demonstrated few-photon-level mid-infrared imaging at 3.39 μm by efficient frequency up-conversion. The quantum frequency up-conversion efficiency of mid-infrared photons was high to 32.9%, while mid-infrared images were up-converted with the quantum efficiency of 12.5%. The mid-infrared imaging sensitivity was improved by counting the frequency up-conversion photons temporally confined within the time-window of the pump pulse. The frequency up-conversion system induced a background noise of 1.1 × 10³ counts per second.

源语言	英语
文章编号	241110
期刊	Applied Physics Letters
卷	102
期	24
DOI	https://doi.org/10.1063/1.4811826
出版状态	已出版 - 17 6月 2013
已对外发布	是

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Ultrasensitive mid-infrared up-conversion imaging at few-photon level

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