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1

Digitale Medien

Spectroscopy and laser performance of Nd doped gadolinium lithium fluoride (1993)

Zhang, X. X. ; Villaverde, A. B. ; Bass, M. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 74 (1993), S. 790-796

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: A comprehensive investigation on the spectroscopic properties and laser performance of Nd3+ doped GdLiF4 (GLF), a new laser crystal, is reported. Our high resolution absorption and emission spectra for GLF are nearly identical to those of Nd:LiYF4 (YLF), a well known laser crystal, strongly suggesting that the two crystals are isostructural. The laser performance of Nd:GLF is very similar to that of Nd:YLF. A maximum laser-pump-laser slope efficiency of 68% and 67% was obtained for low (1.0 at. %) and high (4.0 at. %) Nd concentration GLF respectively. Concentration quenching of the fluorescence decay time was observed and appears to be due to the dipole-dipole interaction between the isolated Nd3+ ions and Nd3+ ion pairs.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.354867

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2

Digitale Medien

Efficient laser performance of Nd:GdLiF4: A new laser crystal (1993)

Zhang, X. X. ; Bass, M. ; Villaverde, A. B. ; [weitere]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 62 (1993), S. 1197-1199

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ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Laser action of Nd3+ doped GdLiF4 (GLF) has been demonstrated for both pulsed and cw laser pumped operation. A slope efficiency of 60% was obtained in either manner of operation. The spectroscopic properties and laser performance of Nd:GLF are very similar to those of Nd:YLF. GLF, on the other hand, can be doped with much higher Nd3+ concentration.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.108732

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3

Digitale Medien

Room-temperature optical absorption in undoped α-Al2O3 (1990)

Innocenzi, M. E. ; Swimm, R. T. ; Bass, M. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 67 (1990), S. 7542-7546

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Optical absorption over a large dynamic range obtained by two different experimental techniques is reported for an undoped α-Al2 O3 single crystal. Absorption data are presented in two energy ranges: 0.94–3.5 eV and 4.5–8.6 eV. Vacuum ultraviolet (vuv) absorption measurements were performed on three boules of Czochralski-grown single-crystal Al2 O3 with differing starting material purities. The initial powder purities were 99.99%, 99.999%, and 99.999999%. In addition to the vuv measurements, calorimetric absorption results obtained in the visible and near-infrared (ir) are presented. An empirical formula is obtained that provides an estimate of the absorption coefficient from the near-ir to the vuv for undoped Al2 O3 . Detailed impurity analyses and sample histories are given for the optical-quality α-Al2 O3 utilized herein.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.345817

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