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DTSTAMP:20260421T172710Z
UID:d4812d2b-512e-4095-b8e4-6c755eb5ccbc
DTSTART:20260520T120000Z
DTEND:20260520T130000Z
DESCRIPTION:Title: Elucidating the Photon Migration Effects in Incubated Ch
 icken Eggs using Time-Domain Diffuse Optics Speaker: Lennard van den Twee
 l (Wageningen University and Research) Date: Wednesday\, 20 May 2026\, 16
 :00 Central European Summer Time (CEST) The early and non-invasive assessm
 ent of chicken embryonic sex and viability is of great interest. This inte
 rest is driven by the ethical dilemma surrounding the culling of non-produ
 ctive day-old male chicks in layer-hen production and by the need to impro
 ve hatchery efficiency. Optical techniques are widely investigated for the
 se applications\, but are challenged by the complex optical properties and
  heterogeneous structure of avian eggs. Here\, we show that chicken eggs d
 isplay unusual photon trapping behavior due to the eggshell behaving like 
 an integrating sphere\, considerably extending photon time-of-flight. Time
 -domain diffuse optical spectroscopy (TD-DOS) on egg phantoms\, supported 
 by Monte Carlo simulations and post-dispersive filtering experiments\, rul
 e out fluorescence as the source for the long photon time-of-flight. These
  results point to diffuse reflections at the inner surface of the eggshell
  as the source of the long photon time-of-flight. Despite these boundary e
 ffects\, the retrieval of internal bulk optical properties remains feasibl
 e via inversion of the diffusion approximation after selection of appropri
 ate boundary conditions\, as was demonstrated in incubated eggs. Finally\,
  phantom experiments illustrate how the integrating sphere affects the tem
 poral response of time-resolved Raman and fluorescence measurements\, high
 lighting critical challenges in non-invasive optical characterization of a
 vian embryos. 																																																												
 									Registration																								Notice: JavaScript is require
 d for this content.
LOCATION:Online
SUMMARY:Laserlab-Europe Talk: Elucidating the Photon Migration Effects in I
 ncubated Chicken Eggs using Time-Domain Diffuse Optics
URL;VALUE=URI:https://laserlab-europe.eu/event/lle-talk-elucidating-the-pho
 ton-migration-effects-in-incubated-chicken-eggs-using-time-domain-diffuse-
 optics/
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