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Ce(3+):LuLiF(4) as a broadband ultraviolet amplification medium.
Optics Letters
|October 28, 2009
Summary
Cerium-doped Lithium Lutetium Tetrafluoride (Ce3+:LuLiF4) crystals exhibit broad gain spectra, making them ideal for short-pulse laser applications. High amplification was achieved for both picosecond and continuous-wave laser outputs.
Area of Science:
- Laser physics
- Solid-state materials science
- Quantum optics
Background:
- Cerium-doped fluoride crystals are promising gain media for lasers.
- Broad gain spectra are essential for tunable and ultrashort pulse laser generation.
- Lithium Lutetium Tetrafluoride (LuLiF4) offers a robust host for rare-earth dopants.
Purpose of the Study:
- To investigate the laser properties of Ce3+:LuLiF4.
- To evaluate its potential for short-pulse amplification.
- To demonstrate high gain performance in various laser configurations.
Main Methods:
- Spectroscopic characterization of Ce3+:LuLiF4.
- Small-signal gain measurements using 10-ns probe pulses.
- Amplification experiments in a confocal four-pass resonator.
- Pumping with a KrF excimer laser.
Main Results:
- A broad gain spectrum was observed in Ce3+:LuLiF4.
- Small-signal gain exceeded 6 dB/cm for 10-ns pulses.
- Saturation fluence was measured at 50 mJ/cm(2).
- 17-dB amplification achieved for 325-nm picosecond pulses.
- 20-dB gain demonstrated for continuous-wave laser light.
Conclusions:
- Ce3+:LuLiF4 is a highly efficient gain medium for short-pulse lasers.
- Its broad gain and high amplification make it suitable for diverse laser applications.
- Further research can optimize Ce3+:LuLiF4 for advanced laser systems.
