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Optically pumped tunable HBr laser in the mid-infrared region
Optics Letters
|July 1, 2014
Summary
Researchers developed the first optically pumped tunable hydrogen bromide (HBr) laser. This new HBr laser operates on 19 molecular transition lines, offering a novel tool for spectroscopy.
Area of Science:
- Laser Physics
- Molecular Spectroscopy
- Quantum Optics
Background:
- Optically pumped lasers offer tunable output.
- Hydrogen bromide (HBr) is a molecule with potential for laser applications.
Purpose of the Study:
- To demonstrate the first optically pumped tunable HBr laser.
- To characterize the laser's performance and spectral range.
Main Methods:
- Utilized a single-frequency Ho:YLF laser system as the pump source.
- Locked the pump laser to the 2064 nm absorption line of HBr.
- Employed an intra-cavity diffraction grating for tunability.
Main Results:
- Achieved laser oscillation on 19 molecular transition lines of HBr.
- Covered both R-branch (3870-4015 nm) and P-branch (4070-4453 nm) transitions.
- Obtained a maximum output energy of 2.4 mJ at 4133 nm.
Conclusions:
- Successfully demonstrated the first optically pumped tunable HBr laser.
- The developed laser provides tunable output across a significant spectral range.
- This HBr laser represents a new source for spectroscopic applications.
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