Requirements on Photon Counting Detectors for Terahertz Interferometry

被引：11

作者：

Matsuo, Hiroshi ^{[1
]}

机构：

[1] Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2012年 / 167卷 / 5-6期

关键词：

Terahertz wave; Astronomical instrument; Interferometry; Quantum optics; Photon counting detector; Superconducting tunnel junction detector; Charge sensitive infrared photo-transistor; Superconducting single photon detector;

D O I：

10.1007/s10909-012-0579-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Future Terahertz astronomy requires higher angular resolution observations. One possibility is to use photon counting interferometry, which is similar to the intensity interferometry demonstrated by Hanbury Brown and Twiss in 1956. In terahertz frequencies, it will be possible to measure all the photon arrivals and can identify bunched photons from thermal sources to measure correlation amplitude and time delay of the photon arrivals. By obtaining the complex visibility, aperture synthesis images can be obtained. I name this technology as photon counting terahertz interferometry (PCTI). From scientific case study, requirements to the detectors are high photon counting rate and accurate time resolution. I discuss on requirements on possible detector technologies such as superconducting single photon detectors (SSPD), superconducting tunnel junction (STJ) detectors and charge sensitive infrared photo-transistors (CSIP).

引用

页码：840 / 845

页数：6

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