Letter to Editor, J Electr Eng Electron Technol Vol: 6 Issue: 1
Optical Fiber Laser Polaristrobometers and SpectroPolaristrobometers Based on Pr3+-Doped Laser Sources as a Possible Compact Alternative to the Old Type Polaristrobometers Based on Huge Low-Pressure (Mono-chromatic) SodiumVapor Gas-Discharge Lamps
|Orehov FK1* and Gradov OV2|
|1Semenov Institute of Chemical Physics, RAS, Russia|
|2Talrose Institute of Energy Problems of Chemical Physics, RAS, Russia|
|Corresponding author : Orehov FK
Semenov Institute of Chemical Physics, Kosygina str. 4Moscow, Russia
E-mail: [email protected]
|Received: November 22, 2016 Accepted: January 06, 2017 Published: January 12, 2017|
|Citation: Orehov FK, et al. (2017) Optical Fiber Laser Polaristrobometers and Spectro- Polaristrobometers Based on Pr3+-Doped Laser Sources as a Possible Compact Alternative to the Old Type Polaristrobometers Based on Huge Low-Pressure (Mono-chromatic) Sodium- Vapor Gas-Discharge Lamps. J Electr Eng Electron Technol 6:1. doi: 10.4172/2325-9833.1000134|
From the pioneering work of H. Wild it is known that the most useful light source for polaristrobometers is a low-pressure sodium-vapor gas-discharge lamp. The high intense yellow band in the emission spectrum of this “pseudo-monochromatic” light source is the atomic sodium D-line (λ=589 nm), comprising about 90% of the visible light emission for this lamp type.
But low pressure sodium lamps require an outer vacuum envelope around the inner discharge tube for thermal isolation, and early models of such light sources had a detachable Dewar jacket. But this can significantly increase the size of polaristrobometers which contradictsthe requirements for the modern microminiaturized analytical
systems (including microfluidic lab-on-a-chip constructions).