Results 31 to 40 of about 9,055 (217)

Can Two-Photon Interference be Considered the Interference of Two Photons? [PDF]

open access: yesPhysical Review Letters, 1996
We report on a ``postponed compensation'' experiment in which the observed two-photon entangled state interference cannot be pictured in terms of the overlap of the two individual photon wave packets of a parametric down-conversion pair on a beam splitter.
, Pittman   +5 more
openaire   +2 more sources

Two photon width of $\eta_c$ [PDF]

open access: yesThe European Physical Journal C, 2002
4 Pages, 1 figure, use ws-p8-50x6-00.cls. To appear in the proceedings of the Photon 2001 Conference on The Structure and Interactions of the Photon, September 2nd-7th 2001, Ascona ...
Fabiano, Nicola, Pancheri, Giulia
openaire   +2 more sources

Two-Photon Imaging to Unravel the Pathomechanisms Associated with Epileptic Seizures: A Review

open access: yesApplied Sciences, 2021
Despite extensive research, the exact pathomechanisms associated with epileptic seizure formation and propagation have not been elucidated completely. Two-photon imaging (2PI) is a fluorescence-based microscopy technique that, over the years, has been ...
Luqman Khan   +7 more
doaj   +1 more source

Two photon frequency conversion

open access: yesOptics Express, 2012
We study the case of two simultaneous three-wave-mixing processes, where one frequency is converted to another through an intermediate frequency. The common assumption is that these processes can occur only when the material is transparent at all participating frequencies. Here we show experimentally that, under appropriate conditions, the intermediate
Gil, Porat   +3 more
openaire   +2 more sources

A laser–plasma platform for photon–photon physics: the two photon Breit–Wheeler process

open access: yesNew Journal of Physics, 2021
We describe a laser–plasma platform for photon–photon collision experiments to measure fundamental quantum electrodynamic processes. As an example we describe using this platform to attempt to observe the linear Breit–Wheeler process.
B Kettle   +37 more
doaj   +1 more source

Two-photon interference without bunching two photons [PDF]

open access: yesPhysics Letters A, 2003
We report an interference experiment in which the two-photon entangled state interference cannot be pictured in terms of the overlap and bunching of two individual photons on a beamsplitter. We also demonstrate that two-photon interference, or photon bunching effect on a beamsplitter, does not occur if the two-photon Feynman amplitudes are ...
openaire   +2 more sources

A FRET Based Two-Photon Fluorescent Probe for Visualizing Mitochondrial Thiols of Living Cells and Tissues

open access: yesSensors, 2020
Glutathione (GSH) is the main component of the mitochondrial thiol pool and plays key roles in the biological processes. Many evidences have suggested that cysteine and homocysteine also exist in mitochondria and are interrelated with GSH in biological ...
Zhengkun Liu   +4 more
doaj   +1 more source

Synaptic Loss in Alzheimer's Disease: Mechanistic Insights Provided by Two-Photon in vivo Imaging of Transgenic Mouse Models

open access: yesFrontiers in Cellular Neuroscience, 2020
Synapse loss is the strongest correlate for cognitive decline in Alzheimer's disease. The mechanisms underlying synapse loss have been extensively investigated using mouse models expressing genes with human familial Alzheimer's disease mutations. In this
Jaichandar Subramanian   +5 more
doaj   +1 more source

Re‐Irradiation in Pediatric Diffuse Midline Glioma: A Multi‐Institutional Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with recurrent diffuse midline gliomas (DMGs) have limited therapeutic options at recurrence. Re‐irradiation (RT2) may be used at progression, but with uncertainty about the benefit. Methods We conducted a multi‐institutional retrospective study of children aged < 18 with DMG treated at three centers (Toronto, Canada ...
Ajay Thomas Alex   +13 more
wiley   +1 more source

Molecular design strategy to alleviate environmental interference on two-photon fluorescence probes

open access: yesCell Reports Physical Science, 2021
Summary: Electron donor-acceptor (D-A)-type molecules are the most widely employed two-photon scaffolds. Unfortunately, current D-A-type fluorophores suffer from serious solvent-dependent emission wavelength and brightness, thwarting their use for high ...
Xingxing Zhang   +7 more
doaj   +1 more source

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