Measuring Temporal Photon Bunching in Blackbody Radiation

Autor:	Tan, Peng Kian, Yeo, Guang Hui, Poh, Hou Shun, Chan, Aik Hui, Kurtsiefer, Christian
Rok vydání:	2014
Předmět:	Quantum Physics Astrophysics - Instrumentation and Methods for Astrophysics
Zdroj:	Astrophys. J. Lett. 789, L10 (2014)
Druh dokumentu:	Working Paper
DOI:	10.1088/2041-8205/789/1/L10
Popis:	Light from thermal black body radiators such as stars exhibits photon bunching behaviour at sufficiently short timescales. However, with available detector bandwidths, this bunching signal is difficult to be directly used for intensity interferometry with sufficient statistics in astronomy. Here we present an experimental technique to increase the photon bunching signal in blackbody radiation via spectral filtering of the light source. Our measurements reveal strong temporal photon bunching in light from blackbody radiation, including the Sun. Such filtering techniques may revive the interest in intensity interferometry as a tool in astronomy. Comment: 5 pages, 5 figures (minor bugfixes, reference updates)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1403.7432 Zobrazit plný text záznamu View this record from Arxiv