Results 41 to 50 of about 16,988 (191)

Coherent anti-Stokes Raman spectroscopy of single and multi-layer graphene

Nature Communications, 2019
Coherent anti-Stokes Raman Scattering (CARS) accesses the vibrational properties of a material via nonlinear four-wave mixing (FWM); CARS in graphene has not been observed to date despite its high nonlinear third-order susceptibility.
A. Virga, C. Ferrante, G. Batignani, D. De Fazio, A. D. G. Nunn, A. C. Ferrari, G. Cerullo, T. Scopigno   +7 more
doaj   +1 more source

Coherent anti-Stokes Raman scattering imaging of lipids in cancer metastasis

BMC Cancer, 2009
Background Lipid-rich tumours have been associated with increased cancer metastasis and aggressive clinical behaviours. Nonetheless, pathologists cannot classify lipid-rich tumours as a clinically distinctive form of carcinoma due to a lack of ...
Cheng Ji-Xin, Huff Terry B, Le Thuc T
doaj   +1 more source

Interference spectroscopy with coherent anti-Stokes Raman scattering of noisy broadband pulses

, 2011
We propose a new technique for comparing two Raman active samples. The method employs optical interference of the signals generated via coherent anti-Stokes Raman scattering (CARS) of broadband laser pulses with noisy spectra.
Drane, Dudovich, Johnson, Kamalov, Kinrot, Konorov, Konorov, Konorov, Lausten, Leichtle, Lim, Okamoto, Oron, Pendry, Pestov, Postma, Potma, Rehbinder, Roy, Silberberg, Ulness, Warmuth, Xu, Xu, Xu, Zumbusch   +25 more
core   +1 more source

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

Advanced Functional Materials, EarlyView.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi, Sabrina Juergensen, Václav Valeš, Kumari Surbhi, Martin Mergl, Kseniia Mosina, Zdeněk Sofer, Jan Honolka, Patryk Kusch, Martin Kalbáč   +9 more
wiley   +1 more source

High-resolution imaging of graphene by tip-enhanced coherent anti-Stokes Raman scattering [PDF]

Journal of Innovative Optical Health Sciences, 2019
Coherent anti-Stokes Raman scattering (CARS) is able to enhance molecular signals by vibrational coherence compared to weak Raman signal. The surface or tip enhancement are successful technologies, which make it possible for Raman to detect single ...
Xiaolong Kou, Qian Zhou, Dong Wang, Jinghe Yuan, Xiaohong Fang, Lijun Wan   +5 more
doaj   +1 more source

FAST CARS: Engineering a Laser Spectroscopic Technique for Rapid Identification of Bacterial Spores [PDF]

, 2002
Airborne contaminants, e.g., bacterial spores, are usually analyzed by time consuming microscopic, chemical and biological assays. Current research into real time laser spectroscopic detectors of such contaminants is based on e.g.
A. Rebane, A. V. Sokolov, Assion, Baltuska, Bergmann, Boller, Field, Fleischhauer, Fork, G. W. Kattawar, Gordon, H. Pilloff, Harris, Heritage, Hillegas, Jain, Judson, Kocharovskaya, Leuschner, Liang, Liu, M. O. Scully, M. S. Zubairy, Nisoli, Phillips, R. P. Lucht, Rabitz, Scully, Scully, T. Opatrny, Warren, Wefers, Weiner, Zare, Zibrov   +34 more
core   +4 more sources

Sharp Diamond Needles for Single‐Photon Emission

Advanced Photonics Research, EarlyView.
We study the morphological evolution of single‐crystal diamond needles oxidized at 650–700 °C. Electron microscopy and photoluminescence reveal temperature‐ and time‐dependent sharpening, length reduction, and surface modifications affecting tip properties.
Mariam Quarshie, Yaraslau Padrez, Priyadharshini Balasubramanian, Elena Filonenko, Rizwan Sultan, Renata Karpicz, Alexander Obraztsov, Fedor Jelezko, Sergei Malykhin, Polina Kuzhir   +9 more
wiley   +1 more source

Waveguide-based optical parametric oscillator for coherent anti-Stokes Raman scattering [PDF]

EPJ Web of Conferences
A Si3N4 waveguide-based optical parametric oscillator is presented that generates narrowband output pulses down to 1.44 nm and with up to 211 pJ pulse energy, allowing coherent Raman scattering spectroscopy and microscopy with sufficient spectral ...
Gao Ming, Wallmeier Kristin, Fallnich Carsten   +2 more
doaj   +1 more source

Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry [PDF]

, 2009
This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-34-23-3755. Systematic
Kiefer, Johannes, Kliewer, Christopher J., Leipertz, Alfred, Patterson, Brian D., Seeger, Thomas, Settersten, Thomas B.   +5 more
core   +1 more source

Holographic coherent anti-Stokes Raman scattering bio-imaging

Biomedical 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, Edwards, Perry S., Hu, Jing, Xu, Qian, Wang, Yanming, Psaltis, Demetri, Liu, Zhiwen   +6 more
openaire   +2 more sources