Article
Chemistry, Multidisciplinary
Shamsul Abedin, Yong Li, Abid Anjum Sifat, Khokan Roy, Eric O. Potma
Summary: This study addresses the challenges of stability and reproducibility in surface-enhanced coherent anti-Stokes Raman scattering (SE-CARS) by using nanoantennas made from high-index dielectric particles. The experimental results demonstrate enhanced molecular CARS signals observed at Si nanoantennas, which offer improved thermal stability compared to metallic counterparts.
Article
Chemistry, Analytical
Georgi Petrov, Rajan Arora, Vladoslav V. Yakovlev
Summary: The study demonstrated chemical imaging of calcifications in tissues using long wavelength excitation, with imaging and analysis performed 2 mm below the skin level in a model system. Applications to breast cancer diagnostics and imaging were discussed, along with methods to extend depth and improve spatial resolution in chemical imaging.
Article
Multidisciplinary Sciences
Yujia Zhang, Minjian Lu, Zhendong Zhu, Yan Li, Haoyun Wei
Summary: Based on the enhancement factor of broadband SECARS excitation process, a novel Fano resonance plasmonic nanostructure is studied, which shows significant enhancement effect in a wide wavenumber region, covering most of the fingerprint region. This geometrically-tunable Fano plasmonic nanostructure provides a way to realize broadband-enhanced CARS, with potentials in single-molecular monitoring and high-selectivity biochemical detection.
SCIENTIFIC REPORTS
(2023)
Article
Thermodynamics
Daniel R. Richardson, Sean P. Kearney, Daniel R. Guildenbecher
Summary: Accurate measurement of post-detonation fireball temperatures is crucial for understanding device performance. In this study, a hybrid fs-ps CARS instrument was used to measure temperatures in the fireball of a commercial detonator. Challenges such as light scattering from particulate matter and solid fragments were addressed using a new polarization scheme.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Chemistry, Multidisciplinary
Lei Ouyang, Tobias Meyer-Zedler, Kel-Meng See, Wei-Liang Chen, Fan-Cheng Lin, Denis Akimov, Sadaf Ehtesabi, Martin Richter, Michael Schmitt, Yu-Ming Chang, Stefanie Grafe, Jurgen Popp, Jer-Shing Huang
Summary: This study investigates the enhancement effect of plasmonic gratings in nonlinear surface-enhanced coherent anti-Stokes Raman scattering (SECARS) using the platform of plasmonic Doppler grating (PDG). The PDGs spatially separate the input and output enhancement, allowing for observation and comparison of overall enhancement from different combinations of individual input and output beams. The results indicate that enhancement in the pump and anti-Stokes beams plays a more critical role in the overall enhancement than that in the Stokes beam.
Article
Instruments & Instrumentation
Nao Hirai, Yasuhiro Maeda, Kosuke Hashimoto, Bibin B. Andriana, Hiroko Matsuyoshi, Hidetoshi Sato
Summary: The study introduces a new type of CARS instrument with a double-wavelength-emission, background-free, electronically tuned Ti:sapphire laser (DW-ETL), which can provide stable CARS spectra for biological applications by controlling each laser pulse emission throughout the fingerprint region.
APPLIED SPECTROSCOPY
(2021)
Article
Optics
Danni Chen, Zhengyi Liu, Shuanglong Liu, Hanben Niu
Summary: This article demonstrates three-color ultrabroadband CARS spectroscopy based on a single fiber laser. A supercontinuum with a wide bandwidth of 780-1240 nm is generated in a simple manner, allowing real-time capture of CARS signals in most of the fingerprint range.
OPTICS COMMUNICATIONS
(2022)
Article
Instruments & Instrumentation
Runfeng Li, Ruijun Lan, Dashan Dong, Hong Yang, Kebin Shi
Summary: The Bessel beam CARS spectroscopic method enhances spectral fidelity and signal-to-noise ratio in a turbulent environment, improving the measurement accuracy.
APPLIED SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Cla Duri Tschannen, Martin Frimmer, Thiago L. Vasconcelos, Lei Shi, Thomas Pichler, Lukas Novotny
Summary: This paper demonstrates the use of tip-enhanced Raman scattering (TERS) to enhance the Raman response of a single carbyne chain. The study observes a significant increase in scattering and discusses the role of coherent Stokes-anti-Stokes scattering mediated by an excited phonon. The resonance effects and laser-induced heating are also discussed, along with potential opportunities.
Article
Physics, Multidisciplinary
Li Jian-Kang, Li Rui
Summary: Plasma nanostructures can serve as substrates for spectroscopic detection and identification of individual molecules by combining different excitation wavelengths and resonance wavelengths. The use of charge transfer plasma enhances tunability of structural resonance and promotes the development of surface-enhanced Raman scattering.
ACTA PHYSICA SINICA
(2021)
Article
Environmental Sciences
Hendrik Fueser, Christian Pilger, Cihang Kong, Thomas Huser, Walter Traunspurger
Summary: This study found that exposure of C. elegans to microplastic particles can alter lipid storage distribution. When exposed to smaller microplastics, the number and size of lipid droplets in the nematode increased, as well as the area of the nematode covered by lipids. Cultivating the nematodes under restricted food conditions also replicated the altered lipid storage, suggesting that food deprivation induced by microplastic exposure could be a contributing factor. This study demonstrates the usefulness of CARS microscopy in investigating the effects of microplastics on individual organisms.
ENVIRONMENTAL POLLUTION
(2022)
Article
Cell Biology
Damien Boildieu, Tiffany Guerenne-Del Ben, Ludovic Duponchel, Vincent Sol, Jean-Michel Petit, Eric Champion, Hideaki Kano, David Helbert, Amandine Magnaudeix, Philippe Leproux, Philippe Carre
Summary: In this study, the combination of MCARS imaging technique with unsupervised data analysis based on multivariate curve resolution (MCR) is introduced for hyperspectral cell imaging and segmentation. The robustness, applicability, and sensitivity of this method are evaluated through experiments, and imaging results of different cell types and states are presented.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2022)
Article
Quantum Science & Technology
Jabir Chathanathil, Dmitry Budker, Svetlana A. Malinovskaya
Summary: A chirped-pulse quantum control scheme called C-CARS is proposed for enhancing the vibrational coherence in molecules during coherent anti-Stokes Raman scattering spectroscopy. The scheme involves chirping of the pump, Stokes, and probe pulses in the four-wave mixing process of CARS to satisfy the conditions of adiabatic passage. By utilizing the rotating wave approximation and adiabatic elimination of excited state manifold, the four-level model system is simplified into a "super-effective" two-level system. It is demonstrated that the excitation selectivity of vibrational degrees of freedom can be controlled by adjusting the spectral chirp rate of the pulses. The robustness, spectral selectivity, and adiabatic nature of this method make it advantageous for improving CARS spectroscopy for sensing, imaging, and detection purposes.
QUANTUM SCIENCE AND TECHNOLOGY
(2023)
Article
Optics
Huijie Zhao, Ziyang Tian, Yan Li, Haoyun Wei
Summary: This study demonstrates single-shot, 1-kHz measurements of temperatures and mole fraction ratios for gas-phase N2, O2, and CO2 using hybrid fs/ps CARS technology, showing high levels of accuracy and precision.
Article
Physics, Applied
Zeeshan H. Amber, Benjamin Kirbus, Lukas M. Eng, Michael Ruesing
Summary: Thin-film lithium niobate (TFLN) on insulator in x- or z-cut form has shown potential for integrated optoelectronic devices, with optical second-harmonic generation (SHG) microscopy providing insights into its structural properties. SHG in TFLN is influenced by interfacial reflections and resonant enhancements, with the dominant SHG contribution being the co-propagating phase-matched signal. The coherent interaction length lc depends on the incident laser wavelength and numerical aperture of the focusing objective.
JOURNAL OF APPLIED PHYSICS
(2021)
Review
Chemistry, Analytical
Xiaolin Lu, Chi Zhang, Nathan Ulrich, Minyu Xiao, Yong-Hao Ma, Zhan Chen
ANALYTICAL CHEMISTRY
(2017)
Article
Engineering, Chemical
J. N. Myers, Z. Chen
JOURNAL OF ADHESION
(2017)
Article
Chemistry, Multidisciplinary
Xiaofeng Han, Jingguo Zheng, Fengming Lin, Kenichi Kuroda, Zhan Chen
Article
Chemistry, Medicinal
Yaoxin Li, Duohai Pan, Vishal Nashine, Smeet Deshmukh, Balvinder Vig, Zhan Chen
JOURNAL OF PHARMACEUTICAL SCIENCES
(2018)
Article
Chemistry, Multidisciplinary
Ya-Xuan Zhu, Hao-Ran Jia, Guang-Yu Pan, Nathan W. Ulrich, Zhan Chen, Fu-Gen Wu
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Multidisciplinary
Minyu Xiao, Joshua Jasensky, Leanna Foster, Kenichi Kuroda, Zhan Chen
Article
Chemistry, Multidisciplinary
Xiaokai Chen, Xiaodong Zhang, Liu-Yuan Xia, Hong-Yin Wang, Zhan Chen, Fu-Gen Wu
Article
Chemistry, Physical
Yaoxin Li, Tadeusz L. Ogorzalek, Shuai Wei, Xiaoxian Zhang, Pei Yang, Joshua Jasensky, Charles L. Brooks, E. Neil G. Marsh, Zhan Chen
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Chemistry, Multidisciplinary
Minyu Xiao, Shuai Wei, Yaoxin Li, Joshua Jasensky, Junjie Chen, Charles L. Brooks, Zhan Chen
Article
Chemistry, Multidisciplinary
Xingquan Zou, Shuai Wei, Somayesadat Badieyan, McKenna Schroeder, Joshua Jasensky, Charles L. Brooks, E. Neil G. Marsh, Zhan Chen
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Multidisciplinary
Minyu Xiao, Shuai Wei, Junjie Chen, Jiayi Tian, Charles L. Brooks, E. Neil G. Marsh, Zhan Chen
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Chemistry, Multidisciplinary
Shuai Wei, Xingquan Zou, Jiayi Tian, Hao Huang, Wen Guo, Zhan Chen
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Chemistry, Multidisciplinary
Hao Huang, Chengcheng Zhang, Ralph Crisci, Tieyi Lu, Hsiang-Chieh Hung, Md Symon Jahan Sajib, Pranab Sarker, Jinrong Ma, Tao Wei, Shaoyi Jiang, Zhan Chen
Summary: Research has shown that zwitterionic polymer brushes based on TMAO exhibit strong surface hydration, effectively resisting disruptions induced by salts and proteins, thus demonstrating excellent nonfouling performance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Tieyi Lu, Wen Guo, Prathamesh M. Datar, Yue Xin, E. Neil G. Marsh, Zhan Chen
Summary: Protein adsorption on surfaces plays a critical role in various applications, and studying the molecular behavior of proteins at interfaces is challenging. This research utilized SFG spectroscopy to investigate protein adsorption at the silicone oil/protein solution interface, revealing that the interface was primarily covered by BSA dimers.
Article
Nanoscience & Nanotechnology
Ningning Ma, Peidang Liu, Nongyue He, Ning Gu, Fu-Gen Wu, Zhan Chen
ACS APPLIED MATERIALS & INTERFACES
(2017)