Pressure-induced shift and broadening of 1510–1540-nm acetylene wavelength calibration lines
JOSA B, Vol. 17, Issue 7, pp. 1263-1270 (2000)
http://dx.doi.org/10.1364/JOSAB.17.001263
Acrobat PDF (171 KB)
Abstract
We have measured the pressure-induced shift for 15 lines of the ν1+ν3 rotational–vibrational band of acetylene 12C2H2. These lines are useful as wavelength references in the 1510–1540-nm region. We find that the pressure shift varies from +0.008(2) pm/kPa for line R1 to +0.043(2) pm/kPa for line R27, with many of the lines exhibiting a shift near +0.017 pm/kPa (or, equivalently, +2.3×10−3 pm/Torr or −0.29 MHz/Torr). In addition, we have measured the pressure broadening of these lines and find that it also varies with line number and is typically ∼0.7 pm/kPa (∼12 MHz/Torr). We also evaluate the line sensitivity to temperature changes and electromagnetic fields.
OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(060.2330) Fiber optics and optical communications : Fiber optics communications
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(300.0300) Spectroscopy : Spectroscopy
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6390) Spectroscopy : Spectroscopy, molecular
Citation
W. C. Swann and S. L. Gilbert, "Pressure-induced shift and broadening of 1510–1540-nm acetylene wavelength calibration lines," J. Opt. Soc. Am. B 17, 1263-1270 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-7-1263
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