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

Fiber-format dual-comb coherent Raman spectrometer [PDF]

, 2017
We demonstrate a fiber-format system for dual-comb coherent anti-Stokes Raman scattering spectroscopy. The system is based on two ytterbium fiber (Yb) femtosecond lasers at repetition frequencies of 94 MHz, a Yb amplifier, and a photonic crystal fiber ...
Coluccelli, Nicola, Galzerano, Gianluca, Gambetta, Alessio, Howle, Christopher R, Laporta, Paolo, McEwan, Kenneth, TEDDY FERNANDEZ, TONEY, WANG, YUCHEN   +7 more
core   +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

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

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

Spatially dependent Rabi oscillations: an approach to sub-diffraction-limited CARS microscopy [PDF]

, 2009
We present a theoretical investigation of coherent anti-Stokes Raman scattering (CARS) that is modulated by periodically depleting the ground state population through Rabi oscillations driven by an additional control laser.
Carsten Cleff, Carsten Fallnich, Chris J. Lee, H. H. Szeto, Herman L. Offerhaus, Jennifer L. Herek, Klaus-Jochen Boller, P. W. Milonni, Petra Groß, Willem P. Beeker   +9 more
core   +2 more sources

Ubiquitous Antiparallel Domains in 2D Hexagonal Boron Nitride Uncovered by Interferometric Nonlinear Optical Imaging

Advanced Materials, EarlyView.
Interferometric second‐harmonic generation (SHG) imaging reveals the ubiquitous formation of antiparallel domains in CVD‐grown 2D hexagonal boron nitride. By resolving lattice orientation and SHG phase, hidden domain structures and disorder become visible over large areas. The SHG intensity quantitatively tracks crystalline quality across growth routes,
Yeri Lee, Juseung Oh, Kyung Yeol Ma, Seung Jin Lee, Eui Young Jung, Yani Wang, Kenji Watanabe, Takashi Taniguchi, Hailin Peng, Hiroki Ago, Ki Kang Kim, Hyeon Suk Shin, Sunmin Ryu   +12 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

Femtosecond coherent anti-Stokes Raman scattering measurement of gas temperatures from frequency-spread dephasing of the Raman coherence [PDF]

, 2006
Gas-phase temperatures and concentrations are measured from the magnitude and decay of the initial Raman coherence in femtosecond coherent anti-Stokes Raman scattering (CARS).
Gord, James R., Lucht, Robert P., Meyer, Terrence R., Roy, Sukesh   +3 more
core   +3 more sources