Development of a spatial heterodyne Raman spectrometer with echelle-mirror structure

Qiu, Jun; Qi, Xiangdong; Li, Xiaotian; Ma, Zhenyu; Jirigalantu,; Tang, Yuguo; Mi, Xueling; Zheng, Xiaoming; Zhang, Rui; Bayanheshig,

doi:10.1364/oe.26.011994

Cited by 23 publications

(7 citation statements)

References 19 publications

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“…The basic design and operation of the SHRS has been discussed previously. 1–11,20–41 In the interferometer, collimated light is passed through a 50:50 beam splitter, dividing the beam into two parts which are directed onto tilted diffraction gratings. After being diffracted off the gratings, the beams recombine at the beamsplitter as crossing wave fronts.…”

Section: Resultsmentioning

confidence: 99%

A Monolithic Spatial Heterodyne Raman Spectrometer: Initial Tests

et al. 2020

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Section: Resultsmentioning

confidence: 99%

A Monolithic Spatial Heterodyne Raman Spectrometer: Initial Tests

et al. 2020

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“…Raman Spectrometer, also known as Raman Spectrometer (26), was used to analyze structures and bonding bonds in nanomaterials.…”

Section: Detection Methodsmentioning

confidence: 99%

Effect of Acupuncture Treatment on Post-stroke Depression by Using Diamond-Like Ultra-Thin Nano-Coating Technology

Yang¹,

Cheng²,

Zhang³

et al. 2022

Cell Mol Biol (Noisy-le-grand)

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This study aimed to explore the effect of acupuncture on account of composite diamond-like nanomembrane sensors (DLNF) sensors on post-stroke depression. Titanium/antigen-diamond-like carbon (Ti/Ag-DLC) composite DLNF sensors were prepared by coating Ti and Ag composites on the surface of DLC by radio frequency magnetron sputtering technology. The scanning electron microscope (SEM), X-ray photoelectron spectrometer (XPS), Raman spectrometer, nanoindenter, and sliding friction tester were adopted to analyze the characterization of Ti/Ag-DLC composite membrane, the chemical state of the main constituent elements on the surface, structural characteristics, membrane hardness, and tribological properties, respectively. 132 patients with post-stroke depression in our hospital were selected as the research objects, they were divided into the control group (receiving conventional treatment) and the acupuncture group (receiving acupuncture based on conventional treatment) according to different treatment methods, with 66 cases in each group. The depression of the two groups of patients before the treatment and 4 and 8 weeks after the treatment were compared. The psychological resilience scale and Herth scale were used to evaluate the mental toughness and hope level of patients. The results showed that when the Ag content was less than 0.55%, the Ti/Ag-DLC composite surface was smooth and showed no obvious particles, the membranes with different content had obvious absorption peaks at 1560 cm -1 and the friction life in a high vacuum environment was extended to around 900 revolutions. After 4 and 8 weeks of treatment, the scores of the hammer depression scale (HDS) in the two groups were significantly lower than before treatment (P<0.01) and the scores of the acupuncture group were much lower after 4 and 8 weeks of treatment in contrast to the control group (P<0.01). The optimism, self-strength, and tenacity in the psychological resilience scale of the acupuncture group patients rose higher than those in the control group (P<0.05) after 8 weeks of treatment. The Herth scale score of the acupuncture group was greatly higher compared with that of the control group after 8 weeks of treatment (P<0.01). It showed that the Ti/Ag-DLC composite DLNF sensor with good hardness and friction performance was prepared in this study. Acupuncture therapy could improve the negative emotions of patients with post-stroke depression, enhance mental resilience, and help raise the level of hope. Therefore, it was proved to be a potentially effective treatment.

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“…Nevertheless, SHS have recently been effectively used in low‐light and Raman applications [ 19 ] including when using ultraviolet laser sources for Raman, [ 20 ] collection of remote (or stand‐off) Raman signals, [ 21,22 ] and biological analyses [ 20–23 ] (in both backscattering and transmission modes). [ 18,24 ] SHS configurations have also enabled instruments to be miniaturized, [ 25 ] as well as being used in hyperspectral [ 26 ] and Echelle grating–mirror [ 27 ] configurations. Whilst each of these have provided important incremental advances in Raman, to date SHS has not been used in combination with SORS to overcome current fundamental issues associated with its sensitivity, the speed of spectral acquisition and ease of data processing.…”

Section: Introductionmentioning

confidence: 99%

Spatial Heterodyne Offset Raman Spectroscopy Enabling Rapid, High Sensitivity Characterization of Materials’ Interfaces

Cui

Glidle

Cooper

2021

Small

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Spatially offset Raman spectroscopy is integrated with a fiber‐coupled spatial heterodyne spectrometer to collect Raman spectra from deep within opaque or scattering materials. The method, named spatial heterodyne offset Raman spectroscopy generates a wavenumber‐dependent spatial phase shift of the optical signal as a “spectral” image on a charge‐coupled device detector. The image can be readily processed from the spatial domain using a single, simple, and “on‐the‐fly” Fourier transform to generate Raman spectra, in the frequency domain. By collecting all of the spatially offset Raman scattered photons that pass through the microscope's collection objective lens, the methodology gives an improvement in the Raman sensitivity by an order of magnitude. The instrumentation is both mechanically robust and “movement‐free,” which when coupled with the associated advantages of highly efficient signal collection and ease of data processing, enables rapid interfacial analysis of complex constructs based on established biomaterials models.

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Development of a spatial heterodyne Raman spectrometer with echelle-mirror structure

Cited by 23 publications

References 19 publications

A Monolithic Spatial Heterodyne Raman Spectrometer: Initial Tests

A Monolithic Spatial Heterodyne Raman Spectrometer: Initial Tests

Effect of Acupuncture Treatment on Post-stroke Depression by Using Diamond-Like Ultra-Thin Nano-Coating Technology

Spatial Heterodyne Offset Raman Spectroscopy Enabling Rapid, High Sensitivity Characterization of Materials’ Interfaces

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