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Repetitively pulsed tunable dye laser for high resolution spectroscopy.

|February 2, 2010

Summary

A new pulsed tunable dye laser offers precise wavelength control and high peak powers. This stable laser system, pumped by a nitrogen laser, operates across the near-ultraviolet to visible spectrum.

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Area of Science:

Optics and Photonics
Laser Technology

Background:

Pulsed tunable dye lasers are crucial for various spectroscopic applications.
Achieving high stability and precise wavelength tuning in pulsed dye lasers remains a challenge.

Purpose of the Study:

To describe a novel pulsed tunable dye laser system.
To demonstrate a method for achieving high stability and reproducible wavelength tuning.

Main Methods:

Utilized a nitrogen laser for repetitive pumping.
Incorporated an intracavity beam expanding telescope.
Employed a diffraction grating in Littrow mount and a tilted Fabry-Perot etalon for wavelength selection.

Main Results:

Achieved a laser bandwidth of less than 0.004 Angstroms.
Demonstrated convenient and highly reproducible wavelength tuning.
Generated output peak powers in the kilowatt range.
Operated with pulse widths of 5-100 nanoseconds and repetition rates up to 100 pulses per second.
Covered spectral range from near-ultraviolet to visible.

Conclusions:

The developed pulsed tunable dye laser system offers excellent stability and precise wavelength control.
The laser is capable of generating high peak powers across a broad spectral range.
This system is suitable for applications requiring narrow-bandwidth, tunable laser output.

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