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Confocal Raman microscopy offers a particular pathway for monitoring chemical "fingerprints" of intracellular components like the cell membrane, organelles, and nucleus. Nevertheless, conventional Raman acquisitions of fixed or randomly…

Modern interfacial science is increasingly multi-disciplinary. Unique insight into interfacial interactions requires new multimodal techniques for interrogating surfaces with simultaneous complementary physical and chemical measurements. We…

Instrumentation and Detectors · Physics 2019-07-23 Hilton B. de Aguiar , Joshua D. McGraw , Stephen H. Donaldson

Raman spectroscopy is an integral part of graphene research. It is used to determine the number and orientation of layers, the quality and types of edge, and the effects of perturbations, such as electric and magnetic fields, strain,…

Materials Science · Physics 2015-06-16 Andrea C. Ferrari , Denis M. Basko

Vibrational micro-spectroscopy is a powerful optical tool, providing a non-invasive label-free chemically specific imaging for many chemical and biomedical applications. However, hyperspectral image produced by Raman micro-spectroscopy…

Computational Physics · Physics 2019-03-12 E. G. Lobanova , S. V. Lobanov

Raman spectroscopy enables non-destructive, label-free imaging with unprecedented molecular contrast but is limited by slow data acquisition, largely preventing high-throughput imaging applications. Here, we present a comprehensive…

Image and Video Processing · Electrical Eng. & Systems 2021-12-02 Conor C. Horgan , Magnus Jensen , Anika Nagelkerke , Jean-Phillipe St-Pierre , Tom Vercauteren , Molly M. Stevens , Mads S. Bergholt

Phase microscopy is an invaluable tool in the biosciences and in clinical diagnostics. The sensitivity of current phase microscopy techniques is optimized for one specific mean phase value and varies significantly across a given sample.…

Optics · Physics 2019-08-30 Thomas Juffmann , Andrés de los Ríos Sommer , Sylvain Gigan

Raman micro/macro-spectroscopy allows for a non-destructive remote analysis: body and glaze, crystalline and amorphous phases can be identified, including the nanosized pigments colouring the glaze. Last generation instruments are portable…

Materials Science · Physics 2007-05-23 Philippe Colomban

Snapshot spectral imaging is rapidly gaining interest for remote sensing applications. Acquiring spatial and spectral data within one image promotes fast measurement times, and reduces the need for stabilized scanning imaging systems. Many…

Image and Video Processing · Electrical Eng. & Systems 2018-12-05 Rebecca French , Sylvain Gigan , Otto L. Muskens

Single- and few-layer MoS2 has recently gained attention as an interesting new material system for opto-electronics. Here, we report on scanning Raman measurements on few-layer MoS2 flakes prepared by exfoliation. We observe a Raman mode…

Materials Science · Physics 2012-09-19 G. Plechinger , S. Heydrich , J. Eroms , D. Weiss , Schüller , T. Korn

Modern materials science requires efficient processing and characterization techniques for low dimensional systems. Raman spectroscopy is an important non-destructive tool, which provides enormous information on these materials. This…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. Singha , P. Dhar , Anushree Roy

Compressive Raman is a recent framework that allows for large data compression of microspectroscopy during its measurement. Because of its inherent multiplexing architecture, it has shown imaging speeds considerably higher than conventional…

Raman spectroscopy provides spectral information related to the specific molecular structures of substances and has been well established as a powerful tool for studying biological tissues and diagnosing diseases. This article reviews…

Recent remarkable progress in wave-front shaping has enabled control of light propagation inside linear media to focus and image through scattering objects. In particular, light propagation in multimode fibers comprises complex intermodal…

Adaptation and Self-Organizing Systems · Physics 2017-07-17 Omer Tzang , Antonio M. Caravaca-Aguirre , Kelvin Wagner , Rafael Piestun

Imaging Raman spectroscopy can be used to identify cancerous tissue. Traditionally, a step-by-step scanning of the sample is applied to generate a Raman image, which, however, is too slow for routine examination of patients. By transferring…

Instrumentation and Methods for Astrophysics · Physics 2018-10-09 Elmar Schmälzlin , Benito Moralejo , Ingo Gersonde , Johannes Schleusener , Maxim E. Darvin , Gisela Thiede , Martin M. Roth

It is common to measure a single sample using multiple different microscopy methods that have variable scales, rotation and translation. Registering hyperspectral images of two dimensional materials is particularly difficult due to the lack…

Materials Science · Physics 2022-07-12 Kirby Schmidt , Anthony Trofe , Tetyana Ignatova

We review an on-chip approach for spontaneous Raman spectroscopy and Surface Enhanced Raman Spectroscopy (SERS) based on evanescent excitation of the analyte as well as evanescent collection of the Raman signal using Complementary Metal…

Raman spectroscopy is an appealing technique that probes molecular vibrations in a wide variety of materials with virtually no sample preparation. However, accurate and reliable Raman measurements are still a challenge and require more…

Optics · Physics 2020-02-14 Hugo Kerdoncuff , Mikael Lassen , Jan C. Petersen

Raman spectroscopy is one of the widely used methods in the analysis of various samples including carbon-based materials. This study aimed to identify the number of layers and defects in graphene using micro-Raman spectroscopy. More…

Optics · Physics 2024-03-21 Somayeh Gholipour , Maryam Bahreini , Mohamad Reza Jafarfard

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

The use of micro-Raman spectroscopy, through chemical bond nano-scale probes, allows the changes in conformations (alpha helix -> beta sheet), chain orientation, disconnection of disulfide bonds (-20%) and the increase of intra and…

Materials Science · Physics 2007-06-07 Philippe Colomban , Raphaël Paquin