Axially perpendicular offset scheme for obtaining Raman spectra of housed samples in glass bottles with minimized glass-peak background

The Analyst ◽  
2018 ◽  
Vol 143 (22) ◽  
pp. 5497-5504 ◽  
Author(s):  
Pham K. Duy ◽  
Tung D. Vu ◽  
Kyeol Chang ◽  
Hoeil Chung
Keyword(s):  
Raman Spectra ◽  
Photon Detection ◽  
Geometrical Arrangement ◽  
Laser Illumination ◽  
Direct Measurements ◽  
Versatile Tool ◽  
Glass Bottles

An axially perpendicular offset (APO) scheme based on an axially perpendicular geometrical arrangement of laser illumination and photon detection is proposed as a versatile tool for the minimization of the glass background in direct measurements of Raman spectra of samples housed in glass bottles.

Raman spectroscopy as a versatile tool for studying of explicit contribution of anharmonicity

2014 ◽  
Vol 23 (04) ◽  
pp. 1450051 ◽  
Author(s):  
M. R. Joya ◽  
J. D. Gonzalez ◽  
J. Barba-Ortega
Keyword(s):  
Raman Spectroscopy ◽  
Thermal Expansion ◽  
Physical Properties ◽  
Raman Spectra ◽  
Lead Titanate ◽  
Ferroelectric Ceramics ◽  
Effect Of Temperature ◽  
Grüneisen Parameter ◽  
Versatile Tool ◽  
Temperature And Pressure

The Raman spectroscopy can be used as a didactic technique in the study of the thermal expansion of Grüneisen parameter and anharmonic behavior of materials. Here, we present exemplary, the lead titanate doped with lanthanum (PLT). However, this method can be used to study various materials. The ferroelectric ceramics have been one of the most studied compounds in the literature both in obtaining the same, as in behavior of chemical and physical properties. The structural PbTiO 3 phase may change either by the application of pressure, temperature or concentration, thereby allowing a study of behavior anharmonic of the material [M. R. Joya, J. Barba and P. S. Pizani, J. Appl. Phys.113 (2013) 013512]. This paper gives a brief review of the effect of temperature and pressure on Raman spectra.

Appearance of radial breathing modes in Raman spectra of multi-walled carbon nanotubes upon laser illumination

2008 ◽  
Vol 455 (1-3) ◽  
pp. 83-87 ◽  
Author(s):  
Padmnabh Rai ◽  
Dipti R. Mohapatra ◽  
K.S. Hazra ◽  
D.S. Misra ◽  
Jay Ghatak ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectra ◽  
Laser Illumination ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Radial Breathing Modes

Confocal Raman mapping

1992 ◽  
Vol 50 (2) ◽  
pp. 1514-1515
Author(s):  
J. Barbillat ◽  
M. Delhaye ◽  
P. Dhamelincourt
Keyword(s):  
Chemical Species ◽  
Diffraction Limit ◽  
Microscopic Level ◽  
Raman Mapping ◽  
Complete Spectrum ◽  
Laser Illumination ◽  
Ccd Detector ◽  
Raman Microprobe ◽  
Photodiode Array ◽  
Raman Image

Raman mapping, with a spatial resolution close to the diffraction limit, can help to reveal the distribution of chemical species at the surface of an heterogeneous sample.As early as 1975,three methods of sample laser illumination and detector configuration have been proposed to perform Raman mapping at the microscopic level (Fig. 1),:- Point illumination:The basic design of the instrument is a classical Raman microprobe equipped with a PM tube or either a linear photodiode array or a two-dimensional CCD detector. A laser beam is focused on a very small area ,close to the diffraction limit.In order to explore the whole surface of the sample,the specimen is moved sequentially beneath the microscope by means of a motorized XY stage. For each point analyzed, a complete spectrum is obtained from which spectral information of interest is extracted for Raman image reconstruction.- Line illuminationA narrow laser line is focused onto the sample either by a cylindrical lens or by a scanning device and is optically conjugated with the entrance slit of the stigmatic spectrograph.

Single Crystal Raman Spectra of the Phase Transition in KTCNQ

1982 ◽  
Vol 85 (1) ◽  
pp. 297-303 ◽  
Author(s):  
A. D. Bandrauk ◽  
K. D. Truong ◽  
S. Jandl
Keyword(s):  
Phase Transition ◽  
Single Crystal ◽  
Raman Spectra

The Effects of Laser Illumination on Operational and Visual Performance of Pilots During Final Approach

2004 ◽  
Author(s):  
Van B. Nakagawara ◽  
Ronald W. Montgomery ◽  
Archie E. Dillard ◽  
Leon N. McLin ◽  
C. William Connor
Keyword(s):  
Visual Performance ◽  
Laser Illumination ◽  
Final Approach

Raman spectra of electrolyte solutions in light and heavy water

1962 ◽  
Vol 18 (4) ◽  
pp. 1257-1277
Author(s):  
R WESTONJR
Keyword(s):  
Raman Spectra ◽  
Heavy Water ◽  
Electrolyte Solutions

Erratum - Direct measurements of the current-phase relation in superconducting weak links

1975 ◽  
Vol 10 (2) ◽  
pp. 94-94 ◽  
Author(s):  
J.R. Waldram ◽  
J.M. Lumley
Keyword(s):  
Phase Relation ◽  
Weak Links ◽  
Current Phase ◽  
Direct Measurements

AAZTA5.SA.KuE, a versatile tool for theranostic application – labeling, in vitro, and first in vivo-investigation of [ 177 Lu]Lu- AAZTA 5 .SA.KuE

2020 ◽  
Author(s):  
L Greifenstein ◽  
T Grus ◽  
D Mathé ◽  
R Bergmann ◽  
F Rösch
Keyword(s):  
Versatile Tool
Sign in / Sign up

Export Citation Format

Share Document