Results 81 to 90 of about 53,264 (298)

Two types of cooperation between the photons in multiple scattering lasing and their possible application

open access: yesPhysics Open
The two types of cooperative effects between the converted photons in the multiple steps of Raman lasing are proposed. The first type involves the cooperative process between the photons of one of the steps of Raman conversion.
Nicolae A. Enaki
doaj   +1 more source

Extracting quantum dynamics from genetic learning algorithms through principal control analysis [PDF]

open access: yes, 2004
Genetic learning algorithms are widely used to control ultrafast optical pulse shapes for photo-induced quantum control of atoms and molecules. An unresolved issue is how to use the solutions found by these algorithms to learn about the system's quantum ...
B J Pearson   +10 more
core   +1 more source

Optoelectrical Devices for Neural Interfacing: Engineering Integration, Stability, and Multimodal Sensing

open access: yesAdvanced Healthcare Materials, EarlyView.
Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou   +4 more
wiley   +1 more source

Super-resolved coherent anti-Stokes Raman scattering microscopy by coherent image scanning

open access: yesNature Communications
We present super-resolved coherent anti-Stokes Raman scattering (CARS) microscopy by implementing phase-resolved image scanning microscopy, achieving up to two-fold resolution increase as compared with a conventional CARS microscope. Phase-sensitivity is
Anna Zhitnitsky   +3 more
doaj   +1 more source

Invited Article: Comparison of hyperspectral coherent Raman scattering microscopies for biomedical applications

open access: yesAPL Photonics, 2018
Raman scattering based imaging represents a very powerful optical tool for biomedical diagnostics. Different Raman signatures obtained by distinct tissue structures and disease induced changes provoke sophisticated analysis of the hyperspectral Raman ...
T. Bocklitz   +8 more
doaj   +1 more source

Heat evacuation from active Raman media using frequency-selective dissipative coupling

open access: yesPhysical Review Research, 2021
We propose to use frequency-selective dissipative coupling to reduce the heat generated by coherent anti-Stokes Raman scattering (CARS) reversed cycles in active Raman media with phase mismatch.
Galina Nemova, Christophe Caloz
doaj   +1 more source

Multiorder coherent Raman scattering of a quantum probe field

open access: yes, 2003
We study the multiorder coherent Raman scattering of a quantum probe field in a far-off-resonance medium with a prepared coherence. Under the conditions of negligible dispersion and limited bandwidth, we derive a Bessel-function solution for the sideband
A. Mann   +74 more
core   +2 more sources

Mapping Nanoscale Protein‐Corona Kinetics of DoE‐Optimized Perfluorocarbon Encapsulated‐PLGA Nanoparticles by In Situ, Time‐Resolved Synchrotron SAXS

open access: yesAdvanced Healthcare Materials, EarlyView.
A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph   +11 more
wiley   +1 more source

Nanoscale structural characterization of plasmon-driven reactions

open access: yesNanophotonics, 2021
Illumination of noble metal nanostructures by electromagnetic radiation induces coherent oscillations of conductive electrons on their surfaces. These coherent oscillations of electrons, also known as localized surface plasmon resonances (LSPR), are the ...
Li Zhandong, Kurouski Dmitry
doaj   +1 more source

Background free CARS imaging by phase sensitive heterodyne CARS [PDF]

open access: yes, 2008
In this article we show that heterodyne CARS, based on a controlled and stable phase-preserving chain, can be used to measure amplitude and phase information of molecular vibration modes.
Herek, J.L.   +4 more
core   +3 more sources

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