High temporal-spatial resolution spaceborne stellar intensity interferometry array

Chong Wang; Wei Zhang; J. X. Zhang

doi:10.1117/12.2559418

13 December 2020 High temporal-spatial resolution spaceborne stellar intensity interferometry array

Chong Wang, Wei Zhang, J. X. Zhang

Proceedings Volume 11446, Optical and Infrared Interferometry and Imaging VII; 114462P (2020) https://doi.org/10.1117/12.2559418
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

A new space-borne intensity interferometer is discussed in this article. By the virtue of the statistical correlations concerning the fluctuations of photon differential flux due to a large variety of transient astrophysical radiation. Intensity interferometry is able to be used as a promising imaging technique, which is not being restricted by diffraction in optical systems to achieve µas angular resolution. In this contribution, we present a design of telescope array via spacecraft formation flying. An individual telescope consists of an off-axis three-mirror system, Silicon Photomultipliers (SiPM) detectors and electronic trigger systems. The challenge is of high order mutual intensity interfering between sparse apertures under u-v spatial frequency coverage in principle. We optimized the optical performance of SiC mirrors and SiPM light concentrators for intensity interferometry.

Citation Download Citation

Chong Wang, Wei Zhang, and J. X. Zhang "High temporal-spatial resolution spaceborne stellar intensity interferometry array", Proc. SPIE 11446, Optical and Infrared Interferometry and Imaging VII, 114462P (13 December 2020); https://doi.org/10.1117/12.2559418

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