Journal ArticleDOI
Laser action in chromium‐activated forsterite for near‐infrared excitation: Is Cr4+ the lasing ion?
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In this article, room temperature pulsed laser action has been obtained in chromium-activated forsterite (Cr:Mg2SiO4) for excitation of the near-infrared absorption band of the system by the 1064 nm radiation from a Nd:YAG laser.Abstract:
Room‐temperature pulsed laser action has been obtained in chromium‐activated forsterite (Cr:Mg2SiO4) for excitation of the near‐infrared absorption band of the system by the 1064 nm radiation from a Nd:YAG laser. The characteristics of laser emission are similar to those observed for 532 nm pumping. It is suggested that the laser action is due to a ‘‘center’’ other than the trivalent chromium (Cr3+), presumably the tetravalent chromium (Cr4+).read more
Citations
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Optical spectra of transition-metal ions in corundum
TL;DR: In this article, a theory of the band strength based on the point-charge model and p-d mixing has been developed and applied to the data with results in fair agreement with experiment.
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Self-phase-modulated Kerr-lens mode-locked Cr:forsterite laser source for optical coherence tomography.
TL;DR: In this article, an all-solidstate Kerr-lens mode-locked Cr:forsterite laser operating at 1.28 μm is demonstrated as a shortcoherence-length, high-average-power source for optical coherence tomographic (OCT) imaging.
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Tunable solid-state lasers
TL;DR: In this paper, the basic physics of tunable solid-state lasers and the characteristics of the most significant established and emerging systems are discussed, with particular emphasis on trivalent transition metals; alexandrite, other Cr-doped systems, and Ti: sapphire.
Journal ArticleDOI
Optical band gap studies on lithium aluminum silicate glasses doped with Cr3+ ions
TL;DR: In this paper, the optical data are explained in terms of the different oxidation states adopted by the chromium ions into the glass network and the absorption peak at ground state exciton energy, the absorption at band gap, and the free exciton binding energy are determined.
Journal ArticleDOI
Monolithic self-Q-switched Cr,Nd:YAG laser.
TL;DR: The operation of a diode-pumped monolithic self-Q-switched Cr,Nd:YAG laser in which the codoped ions create saturable absorption for Nd(3+) laser emission at 1064 nm is reported.
References
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Journal ArticleDOI
Optical Spectra of Transition‐Metal Ions in Corundum
TL;DR: In this article, a theory of the band strength based on the point-charge model and p-d mixing has been developed and applied to the data with results in fair agreement with experiment.
Journal ArticleDOI
Tunable alexandrite lasers
TL;DR: In this article, a tunable laser operation has been obtained from the solid-state crystal alexandrite (BeAl 2 O 4 :Cr3+) over the continuous range from 701 to 818 nm.
Journal ArticleDOI
Laser action in chromium-doped forsterite
Vladimir Petricevic,Swapan K. Gayen,Robert R. Alfano,Kiyoshi Yamagishi,H. Anzai,Yasuhide Yamaguchi +5 more
TL;DR: In this article, a pulsed laser operation in chromium-activated forsterite Cr(3+):Mg2SiO4 at room temperature was reported, where the spectrum of the free-running laser peaks at 1235 nm and a bandwidth of about 22 nm.
Journal ArticleDOI
Measurements of losses and lasing efficiency in GSGG:Cr,Nd and YAG:Nd laser rods.
TL;DR: The intrinsic lasing efficiency of the co-doped GSGG rods, however, was typically found to exceed that of the YAG:Nd rods by more than a factor of 2.