LabVIEW applications in laser spectroscopy studies

Customers set out to support the layout, connection and integration of modern hardware to build an application to study in the field of laser spectroscopy. On the basis of the customer's equipment available, INO measure Co.., Ltd. design a software system to control spectrometry of alkali metal atoms by laser spectroscopy techniques marked polarity. The equipment and diagram of system are described as diagrams and pictures below:

Figure 1 . Arrangement for V-type PLS using the Frequency doubler-OPO/OPA system as the pump laser. Figure 1. PLS experiments Diagram V- configuration . Laser 1 and 2 respectively laser pump and probe laser. F-Fresnel rhomb, P-polarizer, MC-monochromator, PMT-photomultiplier tube, W-wavelength meter, FP-Fabry-Perot interferometer, PD-photodiode, bxc- Boxcar, HC-hollow cathode lamp, C-microcomputers. F – l / 4, P ₁ , P ₂ – polarizer, MC – monochrome, PMT – photomultiplier tube, FP – Fabry-Perot interferometer , PD -photodiode, bxc – Boxcar integration, HC – lamp cathode Holow.

Figure 2. Machines measure its wavelength Wavemaster coherent.

 The electrical signals from the photomultiplier tubes, Hollow cathode lamp, and Fabry-Perot interferometers synchronization through three integral Boxcar kind SR 2245 Stanford Rerearch Systems (Figure 3). 

Figure 3. Boxcar (model RS 245) and computer interface (model RS 250) of Stanford Research System.

Picture 4. L aser Narrowscan color of the pump beam employers Randiant used to create the PLS system.

The requirements design of software that the customer set: In the measurement process, the computer simultaneously record signals from cathode lamps Holow, Fabry-Perot interferometers and photomultiplier tube (through 3 of Boxcar above). The data are recorded in the "steps" of the electric motor control laser wavelength. The wavelength scanning laser source controled by computer also to control simultaneously with the signal received from the Boxcar.

The Images of data display collected from system

The source code of the program

Pictures of the program when complete