Results 71 to 80 of about 2,856 (176)

Coherent anti-Stokes Raman scattering in a high-finesse microcavity

open access: yesOptics Express, 2014
We report the measurement of degenerate coherent anti-Stokes Raman scattering (CARS) in a high-finesse optical microcavity, with an atmospheric gas as the nonlinear medium. Unlike the well-known bulk process in which index-dispersion compensation is required for phase-matching, efficient microcavity CARS involves a resonant coupling at the Stokes, pump,
Benjamin, Petrak   +2 more
openaire   +2 more sources

Study of signal to noise ratio for different order of field amplitude in CARS process [PDF]

open access: yesEPJ Web of Conferences
This paper investigates the generation of Signal to Noise Ratio (SNR) in Coherent anti-Stokes Raman Scattering (CARS) process in various orders of field amplitude for a squeezed light.
Priyanka Kapil,
doaj   +1 more source

Coherent anti‐stokes Raman scattering microscopy: A biological review [PDF]

open access: yesCytometry Part A, 2006
AbstractMicroscopic imaging of cells and tissues are generated by the interaction of light with either the sample itself or contrast agents that label the sample. Most contrast agents, however, alter the cell in order to introduce molecular labels, complicating live cell imaging.
Luis G, Rodriguez   +2 more
openaire   +2 more sources

Characterization of photodamage in coherent anti-Stokes Raman scattering microscopy

open access: yesOptics Express, 2006
We report a mechanistic analysis of photodamage in coherent anti-Stokes Raman scattering (CARS) microscopy. Photodamage to the myelin sheath in spinal tissues is induced by using the point scan mode and is featured by myelin splitting and shockwaves with broadband emission.
Yan, Fu   +3 more
openaire   +2 more sources

Phase‐shaping strategies for coherent anti‐Stokes Raman scattering

open access: yesJournal of Raman Spectroscopy, 2011
AbstractThe identification of large molecules in complex environments requires probing of multiple vibrational resonances rather than a single resonance. Phase‐shaping the excitation pulses allows the coherent mixing of several resonances so that the presence of molecules can be inferred directly from the integrated output pulse energy. This avoids the
van Rhijn, A.C.W.   +4 more
openaire   +2 more sources

Multimodal Coherent Anti-Stokes Raman Scattering Microscopy With a Supercontinuum All-Fiber Laser

open access: yesIEEE Photonics Journal, 2019
We demonstrate a compact supercontinuum (SC) all-fiber laser source for multimodal coherent anti-Stokes Raman scattering (CARS) microscopy based on an Er-fiber seed.
Yan Li   +6 more
doaj   +1 more source

Dual-tip-enhanced ultrafast CARS nanoscopy

open access: yesNew Journal of Physics, 2014
Coherent anti-Stokes Raman scattering (CARS) and, in particular, femtosecond adaptive spectroscopic techniques (FAST CARS) have been successfully used for molecular spectroscopy and microscopic imaging.
Charles W Ballmann   +4 more
doaj   +1 more source

Holographic coherent anti-Stokes Raman scattering bio-imaging

open access: yesBiomedical Optics Express, 2012
CARS holography captures both the amplitude and the phase of a complex anti-Stokes field, and can perform three-dimensional imaging by digitally focusing onto different depths inside a specimen. The application of CARS holography for bio-imaging is demonstrated. It is shown that holographic CARS imaging of sub-cellular components in live HeLa cells can
Shi, Kebin   +6 more
openaire   +3 more sources

Highly longitudinally polarized coherent anti-Stokes Raman scattering microscopy with improved spatial resolution

open access: yesAIP Advances, 2018
We proposed a method to enhance the longitudinally polarized component and improve the spatial resolution of radially polarized coherent anti-Stokes Raman scattering (CARS) microscopy by phase modulation.
Jian Lin, Shishen Wei, Songlin Zhuang
doaj   +1 more source

Optical characterizations of two-dimensional materials using nonlinear optical microscopies of CARS, TPEF, and SHG

open access: yesNanophotonics, 2018
In this paper, we employ the nonlinear optical microscopies of coherent anti-Stokes Raman scattering spectroscopy, two-photon excitation fluorescence, and second harmonic generation to characterize the properties of two-dimensional (2D) materials.
Li Rui   +5 more
doaj   +1 more source

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