1
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Sarri B, Chevrier V, Poizat F, Heuke S, Franchi F, De Franqueville L, Traversari E, Ratone JP, Caillol F, Dahel Y, Hoibian S, Giovannini M, de Chaisemartin C, Appay R, Guasch G, Rigneault H. In vivo organoid growth monitoring by stimulated Raman histology. NPJ IMAGING 2024; 2:18. [PMID: 38948153 PMCID: PMC11213706 DOI: 10.1038/s44303-024-00019-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 05/21/2024] [Indexed: 07/02/2024]
Abstract
Patient-derived tumor organoids have emerged as a crucial tool for assessing the efficacy of chemotherapy and conducting preclinical drug screenings. However, the conventional histological investigation of these organoids necessitates their devitalization through fixation and slicing, limiting their utility to a single-time analysis. Here, we use stimulated Raman histology (SRH) to demonstrate non-destructive, label-free virtual staining of 3D organoids, while preserving their viability and growth. This novel approach provides contrast similar to conventional staining methods, allowing for the continuous monitoring of organoids over time. Our results demonstrate that SRH transforms organoids from one-time use products into repeatable models, facilitating the efficient selection of effective drug combinations. This advancement holds promise for personalized cancer treatment, allowing for the dynamic assessment and optimization of chemotherapy treatments in patient-specific contexts.
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Affiliation(s)
- Barbara Sarri
- Aix Marseille Univ, CNRS, Centrale Med, Institut Fresnel, Marseille, France
- Ligthcore Technologies, Marseille, France
| | | | - Flora Poizat
- Institut Paoli-Calmettes, Endoscopy and Gastroenterology Departement, Marseille, France
| | - Sandro Heuke
- Aix Marseille Univ, CNRS, Centrale Med, Institut Fresnel, Marseille, France
| | - Florence Franchi
- Institut Paoli-Calmettes, Endoscopy and Gastroenterology Departement, Marseille, France
| | | | | | - Jean-Philippe Ratone
- Institut Paoli-Calmettes, Endoscopy and Gastroenterology Departement, Marseille, France
| | - Fabrice Caillol
- Institut Paoli-Calmettes, Endoscopy and Gastroenterology Departement, Marseille, France
| | - Yanis Dahel
- Institut Paoli-Calmettes, Endoscopy and Gastroenterology Departement, Marseille, France
| | - Solène Hoibian
- Institut Paoli-Calmettes, Endoscopy and Gastroenterology Departement, Marseille, France
| | - Marc Giovannini
- Institut Paoli-Calmettes, Endoscopy and Gastroenterology Departement, Marseille, France
| | - Cécile de Chaisemartin
- Institut Paoli-Calmettes, Endoscopy and Gastroenterology Departement, Marseille, France
- Department of Surgical Oncology, Institut Paoli-Calmette, Marseille, France
| | - Romain Appay
- Aix Marseille Univ, CNRS, Neurophysiopathology Institute, Marseille, France
| | | | - Hervé Rigneault
- Aix Marseille Univ, CNRS, Centrale Med, Institut Fresnel, Marseille, France
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2
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Grand C, Scotté C, Prado É, El Rakwe M, Fauvarque O, Rigneault H. Fast compressive Raman micro-spectroscopy to image and classify microplastics from natural marine environment. ENVIRONMENTAL TECHNOLOGY & INNOVATION 2024; 34:103622. [PMID: 38706940 PMCID: PMC11066848 DOI: 10.1016/j.eti.2024.103622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/31/2024] [Accepted: 03/31/2024] [Indexed: 05/07/2024]
Abstract
The fast and reliable detection of micron-sized plastic particles from the natural marine environment is an important topic that is mostly addressed using spontaneous Raman spectroscopy. Due to the long (>tens of ms) integration time required to record a viable Raman signal, measurements are limited to a single point per microplastic particle or require very long acquisition times (up to tens of hours). In this work, we develop, validate, and demonstrate a compressive Raman technology using binary spectral filters and single-pixel detection that can image and classify six types of marine microplastic particles over an area of 1 mm2 with a pixel dwell time down to 1.75 ms/pixel and a spatial resolution of 1 µm. This is x10-100 faster than reported in previous studies.
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Affiliation(s)
- Clément Grand
- Aix Marseille Univ, CNRS, Centrale Med, Institut Fresnel, Marseille, France
| | - Camille Scotté
- Aix Marseille Univ, CNRS, Centrale Med, Institut Fresnel, Marseille, France
- INRAE, UMR ITAP, 361 Rue Jean François Breton, Montpellier 34090, France
| | - Énora Prado
- Ifremer, RDT Research and Technological Development, Plouzané 29280, France
| | - Maria El Rakwe
- Ifremer, RDT Research and Technological Development, Plouzané 29280, France
| | - Olivier Fauvarque
- Ifremer, RDT Research and Technological Development, Plouzané 29280, France
| | - Hervé Rigneault
- Aix Marseille Univ, CNRS, Centrale Med, Institut Fresnel, Marseille, France
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3
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Pereira FC, Ge X, Kristensen JM, Kirkegaard RH, Maritsch K, Zhu Y, Decorte M, Hausmann B, Berry D, Wasmund K, Schintlmeister A, Boettcher T, Cheng JX, Wagner M. The Parkinson's drug entacapone disrupts gut microbiome homeostasis via iron sequestration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.12.566429. [PMID: 38014294 PMCID: PMC10680583 DOI: 10.1101/2023.11.12.566429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Increasing evidence shows that many human-targeted drugs alter the gut microbiome, leading to implications for host health. However, much less is known about the mechanisms by which drugs target the microbiome and how drugs affect microbial function. Here we combined quantitative microbiome profiling, long-read metagenomics, stable isotope probing and single cell chemical imaging to investigate the impact of two widely prescribed nervous system targeted drugs on the gut microbiome. Ex vivo supplementation of physiologically relevant concentrations of entacapone or loxapine succinate to faecal samples significantly impacted the abundance of up to one third of the microbial species present. Importantly, we demonstrate that the impact of these drugs on microbial metabolism is much more pronounced than their impact on abundances, with low concentrations of drugs reducing the activity, but not the abundance of key microbiome members like Bacteroides, Ruminococcus or Clostridium species. We further demonstrate that entacapone impacts the microbiome due to its ability to complex and deplete available iron, and that microbial growth can be rescued by replenishing levels of microbiota-accessible iron. Remarkably, entacapone-induced iron starvation selected for iron-scavenging organisms carrying antimicrobial resistance and virulence genes. Collectively, our study unveils the impact of two under-investigated drugs on whole microbiomes and identifies metal sequestration as a mechanism of drug-induced microbiome disturbance.
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Huang GJ, Li CW, Lee PY, Su JX, Chao KC, Chu LA, Chiang AS, Cheng JX, Chen BH, Lu CH, Chu SW, Yang SD. Electronic Preresonance Stimulated Raman Scattering Spectromicroscopy Using Multiple-Plate Continuum. J Phys Chem B 2023; 127:6896-6902. [PMID: 37494414 DOI: 10.1021/acs.jpcb.3c02629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Stimulated Raman scattering (SRS) spectromicroscopy is a powerful technique that enables label-free detection of chemical bonds with high specificity. However, the low Raman cross section due to typical far-electronic resonance excitation seriously restricts the sensitivity and undermines its application to bio-imaging. To address this bottleneck, the electronic preresonance (EPR) SRS technique has been developed to enhance the Raman signals by shifting the excitation frequency toward the molecular absorption. A fundamental weakness of the previous demonstration is the lack of dual-wavelength tunability, making EPR-SRS only applicable to a limited number of species in the proof-of-concept experiment. Here, we demonstrate the EPR-SRS spectromicroscopy using a multiple-plate continuum (MPC) light source able to examine a single vibration mode with independently adjustable pump and Stokes wavelengths. In our experiments, the C═C vibration mode of Alexa 635 is interrogated by continuously scanning the pump-to-absorption frequency detuning throughout the entire EPR region enabled by MPC. The results exhibit 150-fold SRS signal enhancement and good agreement with the Albrecht A-term preresonance model. Signal enhancement is also observed in EPR-SRS images of the whole Drosophila brain stained with Alexa 635. With the improved sensitivity and potential to implement hyperspectral measurement, we envision that MPC-EPR-SRS spectromicroscopy can bring the Raman techniques closer to a routine in bio-imaging.
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Affiliation(s)
- Guan-Jie Huang
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - Cheng-Wei Li
- Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Po-Yi Lee
- Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Jia-Xuan Su
- Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Kuo-Chuan Chao
- Brain Research Center, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Li-An Chu
- Brain Research Center, National Tsing Hua University, Hsinchu 300044, Taiwan
- Department of Biomedical Engineering & Environmental Sciences, National Tsing Hua University, Hsinchu 30044, Taiwan
| | - Ann-Shyn Chiang
- Brain Research Center, National Tsing Hua University, Hsinchu 300044, Taiwan
- Institute of Systems Neuroscience and Department of Life Science, National Tsing Hua University, Hsinchu 30044, Taiwan
| | - Ji-Xin Cheng
- Department of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Bo-Han Chen
- Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Chih-Hsuan Lu
- Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Shi-Wei Chu
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
- Brain Research Center, National Tsing Hua University, Hsinchu 300044, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei 10617, Taiwan
| | - Shang-Da Yang
- Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 300044, Taiwan
- Brain Research Center, National Tsing Hua University, Hsinchu 300044, Taiwan
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Grassi E, Laptenok SP, Genchi L, Serdaroglu A, Liberale C. Frequency-modulation stimulated Raman scattering microscopy with an acousto-optic tunable filter. OPTICS EXPRESS 2023; 31:18290-18299. [PMID: 37381542 DOI: 10.1364/oe.486337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 05/05/2023] [Indexed: 06/30/2023]
Abstract
Stimulated Raman scattering (SRS) microscopy is increasingly employed for highly specific, label-free, and high-speed bioimaging. Despite its benefits, SRS is susceptible to spurious background signals caused by competing effects, which lower the possible imaging contrast and sensitivity. An efficient approach to suppress these undesired background signals is frequency-modulation (FM) SRS, which exploits the competing effects' weak spectral dependence compared to the SRS signal's high spectral specificity. We propose an FM-SRS scheme realized with an acousto-optic tunable filter, which presents a few advantages compared to other solutions presented in the literature. In particular, it can perform automated measurements from the fingerprint to the CH-stretching region of the vibrational spectrum without any manual adjustment of the optical setup. Moreover, it allows simple all-electronic control of the spectral separation and relative intensities of the pair of probed wavenumbers.
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Gottschall T, Meyer-Zedler T, Eibl M, Pfeiffer T, Hakert H, Schmitt M, Huber R, Tünnermann A, Limpert J, Popp J. Ultrafast Spectral Tuning of a Fiber Laser for Time-Encoded Multiplex Coherent Raman Scattering Microscopy. J Phys Chem B 2023; 127:2375-2380. [PMID: 36917762 DOI: 10.1021/acs.jpcb.2c09115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Coherent Raman scattering microscopy utilizing bioorthogonal tagging approaches like isotope or alkyne labeling allows for a targeted monitoring of spatial distribution and dynamics of small molecules of interest in cells, tissues, and other complex biological matrices. To fully exploit this approach in terms of real-time monitoring of several Raman tags, e.g., to study drug uptake dynamics, extremely fast tunable lasers are needed. Here, we present a laser concept without moving parts and fully electronically controlled for the quasi-simultaneous acquisition of coherent anti-Stokes Raman scattering images at multiple Raman resonances. The laser concept is based on the combination of a low noise and spectrally narrow Fourier domain mode-locked laser seeding a compact four wave mixing-based high-power fiber-based optical parametric amplifier.
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Affiliation(s)
- Thomas Gottschall
- Friedrich-Schiller-Universität Jena, Institute of Applied Physics and Abbe Center of Photonics, Albert-Einstein-Str. 6, 07745 Jena, Germany
| | - Tobias Meyer-Zedler
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology, Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Matthias Eibl
- Institut für Biomedizinische Optik, Universität zu Lübeck, Peter-Monnik-Weg 4, 23562 Lübeck, Germany
| | - Tom Pfeiffer
- Institut für Biomedizinische Optik, Universität zu Lübeck, Peter-Monnik-Weg 4, 23562 Lübeck, Germany
| | - Hubertus Hakert
- Institut für Biomedizinische Optik, Universität zu Lübeck, Peter-Monnik-Weg 4, 23562 Lübeck, Germany
| | - Michael Schmitt
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743 Jena, Germany
| | - Robert Huber
- Institut für Biomedizinische Optik, Universität zu Lübeck, Peter-Monnik-Weg 4, 23562 Lübeck, Germany
| | - Andreas Tünnermann
- Friedrich-Schiller-Universität Jena, Institute of Applied Physics and Abbe Center of Photonics, Albert-Einstein-Str. 6, 07745 Jena, Germany
- Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Str. 7, 07745 Jena, Germany
| | - Jens Limpert
- Friedrich-Schiller-Universität Jena, Institute of Applied Physics and Abbe Center of Photonics, Albert-Einstein-Str. 6, 07745 Jena, Germany
- Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Str. 7, 07745 Jena, Germany
| | - Juergen Popp
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology, Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Albert-Einstein-Straße 9, 07745 Jena, Germany
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7
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Xu FX, Rathbone EG, Fu D. Simultaneous Dual-Band Hyperspectral Stimulated Raman Scattering Microscopy with Femtosecond Optical Parametric Oscillators. J Phys Chem B 2023; 127:2187-2197. [PMID: 36883604 PMCID: PMC10144064 DOI: 10.1021/acs.jpcb.2c09105] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Stimulated Raman scattering (SRS) microscopy is a label-free quantitative optical technique for imaging molecular distributions in cells and tissues by probing their intrinsic vibrational frequencies. Despite its usefulness, existing SRS imaging techniques have limited spectral coverage due to either a wavelength tuning constraint or narrow spectral bandwidth. High-wavenumber SRS imaging is commonly used to map lipid and protein distribution in biological cells and visualize cell morphology. However, to detect small molecules or Raman tags, imaging in the fingerprint region or "silent" region, respectively, is often required. For many applications, it is desirable to collect SRS images in two Raman spectral regions simultaneously for visualizing the distribution of specific molecules in cellular compartments or providing accurate ratiometric analysis. In this work, we present an SRS microscopy system using three beams generated by a femtosecond oscillator to acquire hyperspectral SRS image stacks in two arbitrary vibrational frequency bands, between 650-3280 cm-1, simultaneously. We demonstrate potential biomedical applications of the system in investigating fatty acid metabolism, cellular drug uptake and accumulation, and lipid unsaturation level in tissues. We also show that the dual-band hyperspectral SRS imaging system can be adapted for the broadband fingerprint region hyperspectral imaging (1100-1800 cm-1) by simply adding a modulator.
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Affiliation(s)
- Fiona Xi Xu
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Emily G Rathbone
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Dan Fu
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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8
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Wallmeier K, Würthwein T, Lemberger N, Brinkmann M, Hellwig T, Fallnich C. Frequency modulation stimulated Raman scattering scheme for real-time background correction with a single light source. BIOMEDICAL OPTICS EXPRESS 2023; 14:315-325. [PMID: 36698676 PMCID: PMC9841997 DOI: 10.1364/boe.476513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
A frequency modulation (FM) scheme for stimulated Raman scattering (SRS) is presented with a single fiber-based light source. Pulse-to-pulse wavelength-switching allows real-time subtraction of parasitic signals leaving only the resonant SRS signal with a noise reduction of up to 30 % compared to digital subtraction schemes, leading effectively to a contrast improvement by a factor of up to 8.3. The wide tuning range of the light source from 1500 cm-1 to 3000 cm-1 and the possibility to separately adjust the resonant and the nonresonant wavenumber for every specimen allow to investigate a variety of samples with high contrast and high signal-to-noise ratio, e. g., for medical diagnostics.
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Affiliation(s)
- Kristin Wallmeier
- University of Münster
, Institute of Applied Physics, Corrensstraße 2, 48149 Münster, Germany
| | - Thomas Würthwein
- University of Münster
, Institute of Applied Physics, Corrensstraße 2, 48149 Münster, Germany
| | - Nick Lemberger
- University of Münster
, Institute of Applied Physics, Corrensstraße 2, 48149 Münster, Germany
| | | | - Tim Hellwig
- Refined Laser Systems GmbH, Mendelstraße 11, 48149 Münster, Germany
| | - Carsten Fallnich
- University of Münster
, Institute of Applied Physics, Corrensstraße 2, 48149 Münster, Germany
- University of Münster, Cells in Motion Interfaculty Centre, Münster, Germany
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9
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Grand C, Scotté C, Rigneault H. Fast Compressive Raman Imaging of Polymorph Molecules and Excipients in Pharmaceutical Tablets. Anal Chem 2022; 94:16632-16637. [DOI: 10.1021/acs.analchem.2c02680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Clément Grand
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
| | - Camille Scotté
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
| | - Hervé Rigneault
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
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10
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Huang GJ, Lai PC, Shen MW, Su JX, Guo JY, Chao KC, Lin P, Cheng JX, Chu LA, Chiang AS, Chen BH, Lu CH, Chu SW, Yang SD. Towards stimulated Raman scattering spectro-microscopy across the entire Raman active region using a multiple-plate continuum. OPTICS EXPRESS 2022; 30:38975-38984. [PMID: 36258449 DOI: 10.1364/oe.469050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/17/2022] [Indexed: 06/16/2023]
Abstract
Stimulated Raman scattering (SRS) has attracted increasing attention in bio-imaging because of the ability toward background-free molecular-specific acquisitions without fluorescence labeling. Nevertheless, the corresponding sensitivity and specificity remain far behind those of fluorescence techniques. Here, we demonstrate SRS spectro-microscopy driven by a multiple-plate continuum (MPC), whose octave-spanning bandwidth (600-1300 nm) and high spectral energy density (∼1 nJ/cm-1) enable spectroscopic interrogation across the entire Raman active region (0-4000 cm-1), SRS imaging of a Drosophila brain, and electronic pre-resonance (EPR) detection of a fluorescent dye. We envision that utilizing MPC light source will substantially enhance the sensitivity and specificity of SRS by implementing EPR mode and spectral multiplexing via accessing three or more coherent wavelengths.
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