Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 23: Poster I
Q 23.24: Poster
Dienstag, 12. März 2024, 17:00–19:00, Tent B
Direct measurement of pseudothermal light violating Siegert relation — •Xi Jie Yeo1, Mingze Qing1, Justin Peh1, Darren Koh1, Jaesuk Hwang1, Christian Kurtsiefer1,2, and Peng Kian Tan1 — 1Centre for Quantum Technologies, Singapore, Singapore — 2National University of Singapore, Singapore, Singapore
We present a technique to directly measure the violation of Siegert relation, relating the first and second order photon correlation of thermal light. Specifically, we extract correlations between photoevents detected at the output ports of an asymmetric Mach-Zehnder interferometer. Using this technique, we observe a violation of Siegert relation by laser light scattered off a rotating ground glass, while Siegert relation is obeyed for light from a mercury vapor lamp.
Keywords: photon correlations; interferometry; thermal light; photon statistics