Remote-Raman Spectroscopy at Intermediate Ranges Using Low-Power cw Lasers

Angel, S. M.; Kulp, Thomas J.; Vess, Thomas M.

doi:10.1366/0003702924124132

Cited by 65 publications

(26 citation statements)

References 31 publications

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“…Raman spectroscopy can also be conducted with a telescope from a stand-off distance. Performance of remote Raman analysis has been explored theoretically by T. Hirschfeld [31], while the potential of measuring Raman spectra of organic materials [32], minerals, and inorganic materials with a small telescope and CW laser have been realized [8,9]. Raman lidars based on high power lasers and large telescopes have been used for investigating gaseous species in the atmosphere (e.g.…”

Section: Introductionmentioning

confidence: 99%

Stand-off Raman spectroscopic detection of minerals on planetary surfaces

Sharma

Lucey

Ghosh

et al. 2003

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

192

120

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We have designed and developed two breadboard versions of stand-off Raman spectroscopic systems for landers based on a 5-in. Maksutov Á/Cassegrain telescope and a small (4-in. diameter) Newtonian telescope receiver. These systems are capable of measuring the Raman spectra of minerals located at a distance of 4.5 Á/66 m from the telescope. Both continuous wave (CW) Ar-ion and frequency doubled Nd:YAG (532 nm) pulsed (20 Hz) lasers are used as excitation sources for measuring remote Raman spectra of rocks and minerals. We have also made complementary measurements on the same rock samples with a micro-Raman system in 180 and 1358 geometry for evaluating the system performance and for estimating effect of grain size and laser-induced heating on the spectra of minerals using aquartz as a model mineral. A field portable remote pulsed Raman spectroscopic system based on the 5-in. telescope and an f /2.2 spectrograph has been developed and tested. We have also demonstrated a prototype of a combined Raman and laser-induced breakdown spectroscopy (LIBS) system, capable of providing major element composition and mineralogical information on both biogenic and inorganic minerals at a distance of 10 m from the receiver. #

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Section: Introductionmentioning

confidence: 99%

Stand-off Raman spectroscopic detection of minerals on planetary surfaces

Sharma

Lucey

Ghosh

et al. 2003

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

192

120

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“…The potential for performing remote Raman analysis of species with visible laser excitation in the atmosphere was explored as early as 1973 (55,56). Bulk and surface materials were explored in the 1990s (57,58). Sharma et al (59) have measured Raman spectra of TATB and HMX at 10 m (see figure 6).…”

Section: Laser-based Standoff Detection Methodsmentioning

confidence: 99%

Laser-based Detection Methods of Explosives

Munson

Gottfried

Lucia

et al. 2007

Counterterrorist Detection Techniques of Explosives

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“…Whereas RS in vivo cancer detection has been exploited, Raman spectroscopy although is not a novel technology but its application for cancer detection is a new scope and recent advances in RS have promoted it to a level at which in vivo trials are beginning to emerge [12–14] RS application as a histopathologic tool has been considered mostly now that it is often exploited for examination of biopsied tissues since they may contain very small amounts of material to be searched. Accordingly, among the numerous techniques based on Raman, SERS seems to be more capable of achieving this purpose [4,69].…”

Section: Cancer Detection Using Ramanmentioning

confidence: 99%

Application of nanoparticles in cancer detection by Raman scattering based techniques

Ravanshad

Zadeh

Amani

et al. 2017

Nano Reviews & Experiments

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In vitro detection technique Raman spectroscopy (Rs), in one number times another Rs based expert ways of art and so on, are useful instruments for cancer discovery. top gave greater value to Raman spectroscopy sers is a relatively new careful way for in vitro and in vivo discovery that takes away bad points of simple Raman spectroscopy (Rs). Raman spectroscopy (RS) and in particular, multiple RS-based techniques are useful for cancer detection. Surface enhanced Raman spectroscopy (SERS) is a relatively new method for both in vitro and in vivo detection, which eliminates the drawbacks of simple RS. Using nanoparticles has elevated the sensitivity and specificity of SERS. SERS has the potential to increase sensitivity, specificity and spatial resolution in cancer detection, especially in cooperation with other diagnostic imaging tools such as magnetic resonance imaging (MRI) and PET-scan polyethylene terephthalate. Developing a hand held instrument for detecting cancer or other illnesses may also be feasible by using SERS. Frequently, novel nanoparticles are used in SERS. With a focus on nanoparticle utilization, we review the benefits of RS in cancer detection and related biomarkers. With a focus on nanoparticles utilizations, the benefits of RS in cancer detection and related biomarkers were reviewed. In addition, Raman applications to detect some of prevalent were discussed. Also more investigated cancers such as breast and colorectal cancer, multiple nanostructures and their possible special biomarkers, especially as SERS nano-tag have been reviewed. The main purpose of this article is introducing of most popular nanotechnological approaches in cancer detection by using Raman techniques. Moreover, have been caught up on detection and reviewed some of the most prevalent and also more investigated cancers such as breast, colorectal cancer, multiple intriguing nanostructures, especially as SERS nano-tag, special cancer biomarkers and related approaches. The main purpose of this article is to introduce the most popular nanotechnological approaches in cancer detection by using Raman techniques.

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Remote-Raman Spectroscopy at Intermediate Ranges Using Low-Power cw Lasers

Cited by 65 publications

References 31 publications

Stand-off Raman spectroscopic detection of minerals on planetary surfaces

Stand-off Raman spectroscopic detection of minerals on planetary surfaces

Laser-based Detection Methods of Explosives

Application of nanoparticles in cancer detection by Raman scattering based techniques

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