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On the use of laser induced breakdown spectroscopy to characterize the naturally existing crystal in Pakistan and its optical emission spectrum.
- Source :
-
Spectrochimica Acta Part B . Sep2015, Vol. 111, p80-86. 7p. - Publication Year :
- 2015
-
Abstract
- We have used the Laser Induced Breakdown Spectroscopic (LIBS) technique to qualitatively identify the naturally existing transparent crystal as a pure quartz (SiO 2 ) by observing its optical emission spectra using a Q-switched Nd:YAG laser, fundamental wavelength at 1064 nm and second harmonic at 532 nm. The spectra were registered using a set of five miniature spectrometers covering the spectral range from 200 nm to 720 nm. The plasma temperature has been calculated in the range from 8500 K to 10,200 K and the electron densities determined from the Stark broadened spectral lines in the range of 1.0 × 10 17 cm − 3 to 6.0 × 10 17 cm − 3 . We report here the full widths at maximum of the spectral lines associated with the 3p4s 3 P 0,1,2 → 3p 2 3 P 0,1,2 , 1 S 0 , 1 D 2 transitions in Si and four multiplets of singly ionized silicon. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LASER beams
*SPECTRUM analysis
*OPTICAL spectroscopy
*ELECTRONS
*TEMPERATURE effect
Subjects
Details
- Language :
- English
- ISSN :
- 05848547
- Volume :
- 111
- Database :
- Academic Search Index
- Journal :
- Spectrochimica Acta Part B
- Publication Type :
- Academic Journal
- Accession number :
- 109007226
- Full Text :
- https://doi.org/10.1016/j.sab.2015.07.004