Results 141 to 150 of about 1,909 (180)

New developments in coherent anti-Stokes Raman scattering (CARS) microscopy

Frontiers in Optics, 2003
Recent advances have improved the capability of CARS microscopy for imaging live cells with high sensitivity. In this contribution an overview of the developments in CARS microscopy is given along with applications to cell biology.
Eric O. Potma, Ji-Xin Cheng, Xiaolin Nan, X. Sunney Xie   +3 more
openaire   +1 more source

A common path interferometer for stimulated Raman scattering (SRS) and coherent anti-Stokes Raman scattering measurements (CARS)

SPIE Proceedings, 2012
A detailed description of a common path interferometer is given for CARS and SRS applications. In this interferometer, both probe and reference arms are separated in time and polarization by a birefringent crystal. In order to generate the pump pulse a Ti: Sa laser centered at 808 nm is used, as for the Stokes pulses a Nd: YVO centered at 1064 nm is ...
Negrete-González, G., Offerhaus, H. L., Martinez-Pinon, F., Álvarez-Chávez, J. A.   +3 more
openaire   +1 more source

Coherent Anti-Stokes Raman Scattering (CARS) And Raman Pumping Lineshapes In High Fields

SPIE Proceedings, 1988
We have used an injection-locked Nd:YAG laser/dye laser combination together with a frequency-narrowed argon-fluoride laser to simultaneously observe coherent anti-Stokes Raman scattering (CARS) and stimulated. Raman pumping of oxygen. At high power densities, strong Raman pumping occurs leading to significant distortion of the CARS spectrum and a ...
R B. Miles, J J. Connors, E C. Markovitz, G J. Roth   +3 more
openaire   +1 more source

Experimental study of a CO2 laser plasma by coherent anti-Stokes Raman scattering (CARS)

Spectrochimica Acta Part B: Atomic Spectroscopy, 1992
Abstract We have studied the temperature characteristics of the radio frequency excited plasma in a CO 2 waveguide laser by the coherent anti-Stokes Raman scattering (CARS). CARS-spectra of the pumping gas N 2 obtained in (broadband) multiplex technique allowed the spectroscopic determination of the population density in the vibrational states of ...
Kishimoto, T., Wenzel, N., Grossewilde, H., Lupke, G., Marowsky, G.   +4 more
openaire   +2 more sources

Coherent Anti-Stokes Raman Scattering (CARS) Microscopy Instrumentation and Applications

1998
Abstract Key to the success of optical microscopy in cellular biology is the ability to detect structures with a clear chemical contrast. Identifying the distribution and dynamics of targets in the cell is accomplished only if these compounds can be visualized selectively.
Eric O Potma, X Sunney Xie
openaire   +1 more source

Fiber-Coupled Picosecond Coherent Anti-Stokes Raman Scattering (CARS) Spectroscopy

Lasers, Sources and Related Photonic Devices, 2010
A proof-of-principle fiber-coupled ps-CARS using multimode step-index fiber is designed and demonstrated for high-temperature gas-phase thermometry in flame. The impact of fiber propagation on the delivered beam and resultant effect on CARS signal is investigated.
Paul S. Hsu, Anil K. Patnaik, James R. Gord, Sukesh Roy, Waruna D. Kulatiaka, Terrence R. Meyer   +5 more
openaire   +1 more source

Hyperspectral microscopic imaging by multiplex coherent anti-Stokes Raman scattering (CARS)

SPIE Proceedings, 2011
Coherent anti-Stokes Raman scattering (CARS) microscopy is a powerful technique to image the chemical composition of complex samples in biophysics, biology and materials science. CARS is a four-wave mixing process. The application of a spectrally narrow pump beam and a spectrally wide Stokes beam excites multiple Raman transitions, which are probed ...
Alexander Khmaladze, Joshua Jasensky, Chi Zhang, Xiaofeng Han, Jun Ding, Emily Seeley, Xinran Liu, Gary D. Smith, Zhan Chen   +8 more
openaire   +1 more source

Towards an integrated coherent anti-Stokes Raman scattering (CARS) microscopy system

SPIE Proceedings, 2005
CARS microscopy has emerged as a powerful tool in imaging of biological matter. In addition to a high-3D spatial resolution, the technique delivers an attractive set of properties such as chemical specificity, high sensitivity, and fast data acquisition rates thus making it very suitable for biomedical applications.
Francois Legare, Feruz Ganikhanov, X. Sunney Xie   +2 more
openaire   +1 more source

Chemical Imaging of Photoresists with Coherent Anti-Stokes Raman Scattering (CARS) Microscopy

The Journal of Physical Chemistry B, 2003
Coherent anti-Stokes Raman scattering (CARS) microscopy is demonstrated to be a powerful imaging technique with chemical specificity for studying chemically amplified polymer photoresists. Samples of poly(tert-butyloxycarbonyloxystyrene) (PTBOCST) resist imprinted by interferometric lithography with a pattern of lines/spaces of 400 nm/400 nm and 200 nm/
Eric O. Potma, X. Sunney Xie, Ligia Muntean, Jan Preusser, David Jones, Jun Ye, Stephen R. Leone, William D. Hinsberg, Wolfgang Schade   +8 more
openaire   +1 more source

Random illumination coherent anti-Stokes Raman scattering microscopy (RIM-CARS)

Optica Imaging Congress 2024 (3D, AOMS, COSI, ISA, pcAOP)
Coherent non-linear wide-field imaging reduces phototoxicity compared to focused approaches and holds the potential for the highest possible image acquisition rates, but misses optical sectioning. Here, we reintroduce optical sectioning using fast changing speckle illuminations.
Eric M. Fantuzzi, Sandro Heuke, Simon Labouesse, Dominykas Gudavičius, Randy Bartels, Anne Sentenac, Hervé Rigneault   +6 more
openaire   +1 more source