High-harmonic-driven inverse Raman scattering

Mitrofanov, A. V.; Рожко, М. В.; Voronin, A. A.; Sidorov‐Biryukov, D. A.; Федотов, А. Б.; Zheltikov, A. M.

doi:10.1364/ol.419790

Cited by 2 publications

(4 citation statements)

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“…For the increased versatility of being able to use either a red-shifted or a blue-shifted probe to mitigate possible issues with sample absorption (Figure S1 and Table S1), we seek to investigate the feasibility of using a modified version of SRDM, based on inverse Raman spectroscopy (IRS). − IRS, similar to SRS, generates a signal through the use of a pump pulse and a shifted-probe pulse. However, instead of using a red-shifted probe, IRS uses a blue-shifted probe.…”

Section: Introductionmentioning

confidence: 99%

Stimulated Raman versus Inverse Raman: Investigating Depletion Mechanisms for Super-Resolution Raman Microscopy

et al. 2022

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Super-resolution fluorescence microscopy has been critical in elucidating the nanoscale structure of biological systems. However, fluorescent labels bring difficulties such as perturbative labeling steps and photobleaching. Thus, label-free super-resolution techniques are of great interest, like our group’s 2016 stimulated Raman scattering (SRS) technique, stimulated Raman depletion microscopy (SRDM). Inspired by stimulated emission depletion microscopy, SRDM uses a toroidally shaped beam to deplete the signal formed on the edges of the focal spot, resulting in SRS signal being detected from only a subdiffraction limited region. In initial works, the cause of the depletion was not thoroughly characterized. Here, we conclusively demonstrate suppression mechanisms in SRDM, while also contrasting approaches to super-resolution Raman microscopy on the Stokes and anti-Stokes sides of the spectrum. By monitoring the depletion of both the SRS and inverse Raman scattering (IRS) signal at a range of depletion powers, we observed other four-wave coherent Raman pathways that correspond to the introduction of the femtosecond depletion beam. In addition, we showed the depletion of the IRS signal, paving the way for a super-resolution imaging technique based on IRS, inverse raman depletion microscopy (IRDM). Combined, SRDM and IRDM offer label-free super-resolution imaging over a large spectral range to accommodate a variety of different sample constraints.

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Section: Introductionmentioning

confidence: 99%

Stimulated Raman versus Inverse Raman: Investigating Depletion Mechanisms for Super-Resolution Raman Microscopy

et al. 2022

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“…The self-compression can also happen in air under conditions of no ionization. Utilizing the anomalous dispersion of air in the wavelength range from 3.5 to 4.2 μm, soliton self-compression of high peak power pulses were achieved by loosely focusing in air [67]. In this work, the strong HOD near the edge of the CO2 absorption band also affects the soliton dynamics.…”

Section: Koprinkov Et Al Observed Self-compression Of High-intensity ...mentioning

confidence: 98%

“…Mitrofanov et al demonstrated that high peak power MIR pulses can be soliton selfcompressed during free propagation within the regions of anomalous dispersion in air to yield few-cycle sub-terawatt field waveforms [67]. Although the input peak power is estimated to be larger than the critical power, they confirmed that there were no filamentations happening and explained the self-compression by soliton dynamics with influence of HOD.…”

Section: Mechanisms Behind Laser Pulse Self-compressionmentioning

confidence: 99%

“…In these works there are three types of laser sources used: Ti:sapphire lasers, which have been the work horse of ultrafast science in the last decades; the ytterbium (Yb) doped high-power lasers; the secondary laser 18) and ( 21) in Figure 2.11], number (18) is achieved by soliton self-compression in a mm thin YAG crystal [65]. The other one number ( 21) is achieved in anomalously dispersive air [67]. The laser wavelengths used by these two works are 3.9 µm which are anomalously dispersive for most materials.…”

Section: Self-compression State-of-the-artmentioning

confidence: 99%

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The design, construction, optimization, and application of self-compression of high energy pulses in gas filled hollow core waveguide

Ran¹

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for their continuous support and guidance throughout the past years. The completion of this thesis would not have been possible without the support and nurturing of them. Prof. Wang Qi Jie is always approachable even if he often has a busy schedule. He can always grasp the impact of research work and give me a clear direction. He also inspires me in how to do research and think as a researcher. He is the scientist model who I would like to become. I got to know Dr. Li Hao in a NTU career fair. It is him who led me into this wonderful ultrafast optics research field. His knowledge and passion in this field inspired me very much. He taught me not only the specified knowledge in the research field, but also the practical skills in experiment and personal developments in my life. I would not have completed this PhD journey without his support and guidance. He is both a mentor and friend to me.Dr. Zhang Ying is a mentor to me. He trained me how to be a good researcher. He taught me how to find a research problem, how to solve the problem, and how to write scientifically, with patience which cannot be underestimated. I learned so much from him. His insight and wisdom have not only guided me through this PhD program but will also inspire me in my whole life. I am extremely grateful to have such a good supervisor. I would like to extend my sincere thanks to all the staffs and students I have met in the SIMTech. I would like to thank Dr. Wang Lifeng who helped me a lot when I just joined SIMTech and taught me many things both in theory and experiment. I must also thank Dr.Li Lu who taught me many useful practical techniques in experiment. Many thanks to Dr.

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High-harmonic-driven inverse Raman scattering

Cited by 2 publications

References 44 publications

Stimulated Raman versus Inverse Raman: Investigating Depletion Mechanisms for Super-Resolution Raman Microscopy

Stimulated Raman versus Inverse Raman: Investigating Depletion Mechanisms for Super-Resolution Raman Microscopy

The design, construction, optimization, and application of self-compression of high energy pulses in gas filled hollow core waveguide

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