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Trace Methane Detection Based on Raman Spectroscopy Using a High Finesse Optical Resonator
Raman spectroscopy Methane detection Gas sensor
2009/6/8
A Raman spectroscopy-based gas sensor employing a high-finesse simple diode laser pumped external cavity, Power Build-up Cavity (PBC), has been developed. Results show that a compact 10-cm-long PBC in...
The Vector Analysis of the Optical Resonator with the W-axicon for the Coaxial CO2 Laser
Optical resonator W-axicon, Axicon Toric mirror
2009/6/1
A resonator using w-axicon and axicon mirrors for a double coaxial electrode discharge CO2 laser is analyzed using the vector field, iterative reflection method. A uniform ring-shaped output mode is e...