{
	"event_id": "1171699",
	"eventinstance_id": "4250173",
	"calendar": {
		"id": 3325,
		"title": "CREOL Calendar",
		"slug": "creol-calendar",
		"url": "https://events.ucf.edu/calendar/3325/creol-calendar/"
	},
	"id": "4250173",
	"title": "CREOL Fall Colloquium: Probing Photon Indistinguishability with Fast Spectrometers",
	"subtitle": null,
	"description": "\u003Cp\u003E\u003Cstrong\u003EAbstract: \u003C/strong\u003EPhoton indistinguishability is essential for quantum interference underpinning emerging applications in quantum sensing, communication, and computing. Compelling motivations under investigation in my group include quantum astrometry, where two\u002Dphoton interference can enable long\u002Dbaseline optical interferometry without direct optical links between telescopes, and quantum networks, where wavelength\u002Dmultiplexed entanglement swapping promises substantially enhanced communication rates. Both applications require efficient identification of indistinguishable photons with high temporal and spectral precision.\u003C/p\u003E\u000A\u003Cp\u003EWe present an approach to photon indistinguishability detection based on ultrafast spectro\u002Dtemporal imaging with pixelated single\u002Dphoton detectors. By mapping detected photons onto well\u002Ddefined time\u0026ndash\u003Bfrequency modes, the method enables identification of interfering photon pairs and higher\u002Dorder correlations. Our spectrometer based on the LinoSPAD2 SPAD array achieves approximately 40 ps timing and 40 pm spectral resolution. We demonstrate massively parallel, wavelength\u002Dresolved Hanbury Brown\u0026ndash\u003BTwiss interference with broadband light across approximately 100 independent spectral channels, exceeding previous multiplexing capabilities by more than an order of magnitude [1].\u003C/p\u003E\u000A\u003Cp\u003EWe discuss recent improvements in spectral resolution and prospects for next\u002Dgeneration two\u002Ddimensional detector arrays approaching the Heisenberg\u0026ndash\u003BGabor limit, with target resolutions of 20 ps and 5 pm. The approach offers a scalable path toward real\u002Dtime photon indistinguishability selection, substantially reduced data volumes, and multiphoton correlation measurements, opening new opportunities for quantum\u002Denhanced astronomical interferometry, entanglement swapping, and quantum imaging.\u003C/p\u003E\u000A\u003Cp\u003E[1] Hanbury Brown\u002DTwiss interference with massively parallel spectral multiplexing for broadband light, S Kulkov et al, Advanced Photonics Nexus, Vol.5, Issue 5, 056023 (2026), arXiv:2509.05649 (2025).\u0026nbsp\u003B\u003C/p\u003E\u000A\u003Cp\u003E\u003Cstrong\u003EAbout the Speaker: \u003C/strong\u003E\u003Cspan\u003E\u003Cstrong\u003EAndrei Nomerotski\u003C/strong\u003E\u0026nbsp\u003Bis a Senior Researcher at the Czech Technical University in Prague (since 2024) and a Courtesy Professor at Florida International University, USA (since 2023). His research interests span experimental particle and quantum physics, astrophysics, and the development and applications of fast imaging cameras for single photon detection.\u003C/span\u003E\u003Cspan\u003EPreviously, he was a Research Professor at Stony Brook University (2015\u0026ndash\u003B2024) and a Physicist at Brookhaven National Laboratory (2012\u0026ndash\u003B2023). From 2005 to 2012, he held academic positions at the University of Oxford (2005\u0026ndash\u003B2012). Earlier in his career, he was a scientist at Fermilab (2000\u0026ndash\u003B2005) and a postdoctoral researcher at the University of Florida (1996\u0026ndash\u003B2000).\u003C/span\u003E\u003Cspan\u003EHe received his PhD in Physics from the University of Padua in 1996, with a thesis on semileptonic B\u002Dmeson decays, and his MS degree from Novosibirsk State University.\u0026nbsp\u003B\u003C/span\u003E\u003C/p\u003E",
	"location": "CREOL: 102",
	"location_url": "http://www.creol.ucf.edu/",
	"virtual_url": null,
	"registration_link": null,
	"registration_info": null,
	"starts": "Thu, 19 Nov 2026 12:00:00 -0500",
	"ends": "Thu, 19 Nov 2026 13:00:00 -0500",
	"ongoing": "False",
	"category": "Speaker/Lecture/Seminar",
	"tags": ["Photonics","College of Optics and Photonics","CREOL","Optics"],
	"contact_name": "Stephen Eikenberry",
	"contact_phone": null,
	"contact_email": "Stephen.Eikenberry@ucf.edu",
	"url": "https://events.ucf.edu/event/4250173/creol-fall-colloquium-probing-photon-indistinguishability-with-fast-spectrometers/"
}