Towards stellar temporal intensity interferometry

Xi Jie Yeo; Andrew Siemion; Christian Kurtsiefer; Peng Kian Tan

doi:10.1117/12.3015561

28 August 2024 Towards stellar temporal intensity interferometry

Xi Jie Yeo, Andrew Siemion, Christian Kurtsiefer, Peng Kian Tan

Author Affiliations +

Proceedings Volume 13095, Optical and Infrared Interferometry and Imaging IX; 130951P (2024) https://doi.org/10.1117/12.3015561
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Thermal light such as blackbody radiation including starlight has been known to exhibit photon bunching behaviour. This is the characteristic property of thermal photons to propagate closer together than as described by random Poissonian timing statistics. Although first theorised in the 1960s, attempts to directly probe the temporal coherence of starlight has remained challenging due to the very short timescales required. This work aims to address that by using narrowband spectral filtering to increase the timescale sufficiently for a direct measurement. We present calibration tests using laboratory light sources towards an observatory measurement.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xi Jie Yeo, Andrew Siemion, Christian Kurtsiefer, and Peng Kian Tan "Towards stellar temporal intensity interferometry", Proc. SPIE 13095, Optical and Infrared Interferometry and Imaging IX, 130951P (28 August 2024); https://doi.org/10.1117/12.3015561

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