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Related papers: Dual-tip-enhanced ultrafast CARS nanoscopy

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Coherent anti-Stokes Raman scattering (CARS) spectroscopy with time-delayed ultrashort pulses and a single-pixel photodetector has shown great potential for spectroscopic imaging and transient studies in chemistry and biological research.…

Optics · Physics 2023-12-05 Tianjian Lv , Bing Han , Ming Yan , Zhaoyang Wen , Kun Huang , Kangwen Yang , Heping Zeng

Surface-enhanced coherent anti-Stokes Raman scattering (SE-CARS) takes advantage of surface plasmon resonances supported on metallic nanostructures to amplify the coherent Raman response of target molecules. While these metallic antennas…

Optics · Physics 2022-09-07 Shamsul Abedin , Yong Li , Abid Anjum Sifat , Khokan Roy , Eric Olaf Potma

Single-shot time resolved Coherent Anti-Stokes Raman Scattering (CARS) is presented as a viable method for fast measurements of molecular spectra. The method is based on the short spatial extension of femtosecond pulses and maps time delays…

Optics · Physics 2009-11-13 Yuri Paskover , I. Sh. Averbukh , Yehiam Prior

We demonstrate coherent anti-Stokes Raman scattering (CARS) microscopy in a wide-field setup with nanosecond laser pulse excitation. In contrast to confocal setups, the image of a sample can be recorded with a single pair of excitation…

Optics · Physics 2009-11-11 Christoph Heinrich , Stefan Bernet , Monika Ritsch-Marte

Broadband coherent anti-Stokes Raman scattering (CARS) spectroscopy plays a vital role in chemical sensing and label-free vibrational imaging, yet conventional methods suffer from limited acquisition speeds and complex detection schemes.…

Optics · Physics 2025-07-23 Jing Hu , Tianjian Lv , Zhaoyang Wen , Wending Huang , Ming Yan , Heping Zeng

Coherent Anti Stokes Raman Scattering (CARS) offers many advantages for nonlinear bio-imaging, thanks to its sub-cellular spatial resolution and unique chemical specificity. Its working principle requires two incident pulsed laser beams…

Optical spectroscopy and imaging of microscopic samples have opened up a wide range of applications throughout the physical, chemical, and biological sciences. High chemical specificity may be achieved by directly interrogating the…

Coherent Raman microscopy provide label-free imaging by interrogating the intrinsic vibration of biomolecules. Nevertheless, trade-off between high chemical-specificity and high imaging-speed currently exists in transition from spectroscopy…

Optics · Physics 2017-10-11 Kun Chen , Tao Wu , Tao Chen , Tian Zhou , Haoyun Wei , Yan Li

We theoretically investigate a scheme in which backward coherent anti-Stokes Raman scattering (CARS) is significantly enhanced by using slow light. Specifically, we reduce the group velocity of the Stokes excitation pulse by introducing a…

Optics · Physics 2017-01-03 Li Gong , Haifeng Wang

Since its first demonstration in the sixties, coherent anti-Stokes Raman scattering (CARS) has become a powerful spectroscopic sensing tool with broad applications in biology and chemistry. However, it is a complex nonlinear optical process…

Optics · Physics 2020-07-15 Gombojav O. Ariunbold , Supriya Nagpal , Bryan Semon

We have developed an interferometric implementation of coherent anti-Stokes Raman scattering (CARS) which enables broadband coherent Raman spectroscopy free from non-resonant background (NRB), with a signal strength proportional to…

Optics · Physics 2014-02-25 Brad Littleton , Thomas Kavanagh , Frederic Festy , David Richards

Chemical imaging enabled by Raman processes is crucial to investigating biological and chemical samples in a label-free manner. Stimulated Raman spectroscopy (SRS) overcomes the key limitation associated with low signal levels in…

Optics · Physics 2026-03-25 Florian M. Schweizer , Hannah Terrasa , Manish Garg

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. resonant…

We have developed a coherent Raman imaging platform using broadband coherent anti-Stokes Raman scattering (BCARS) that provides an unprecedented combination of speed, sensitivity, and spectral breadth. The system utilizes a unique…

Raman spectroscopy is one of the key techniques in the study of vibrational modes and molecular structures. In Coherent Anti-Stokes Raman Scattering (CARS) spectroscopy, a molecular vibrational spectrum is resolved via the third-order…

Optics · Physics 2010-12-02 Ori Katz , Jonathan M. Levitt , Eran Grinvald , Yaron Silberberg

Coherent anti-Stokes Raman scattering (CARS) microspectroscopy has demonstrated significant potential for biological and materials imaging. To date, however, the primary mechanism of disseminating CARS spectroscopic information is through…

Optics · Physics 2015-10-08 Charles H. Camp , Young Jong Lee , Marcus T. Cicerone

Coherent anti-Stokes Raman scattering (CARS) microscopy offers label-free chemical imaging capabilities, but its performance is constrained by small Raman scattering cross-section, strong non-resonant background (NRB), and limited…

Coherent anti-Stokes Raman Spectroscopy (CARS) is a laser-based measurement technique widely applied across many science and engineering disciplines to perform non-intrusive gas diagnostics. CARS is often used to study combustion, where the…

Machine Learning · Computer Science 2022-05-25 Gregory J. Hunt , Cody R. Ground , Andrew D. Cutler

The ability to enhance resonant signals and eliminate the non-resonant background is analyzed for Coherent Anti-Stokes Raman Scattering (CARS). The analysis is done at a specific frequency as well as for broadband excitation using…

Quantum Physics · Physics 2015-03-19 Fang Gao , Feng Shuang , JunHui Shi , Herschel Rabitz , HaiFeng Wang , JiXin Cheng

We present super-resolved coherent anti-Stokes Raman scattering (CARS) microscopy by implementing phase-resolved image scanning microscopy (ISM), achieving up to two-fold resolution increase as compared with a conventional CARS microscope.…

Optics · Physics 2024-11-22 Anna Zhitnitsky , Elad Benjamin , Ora Bitton , Dan Oron
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