The State of the Nd3+ Ion as Derived from the Absorption and Fluorescence Spectra of NdCl3 and Their Zeeman Effects

Carlson, E. H.; Dieke, G. H.

doi:10.1063/1.1701052

Cited by 122 publications

(14 citation statements)

References 12 publications

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“…However, a small deviation from this is observed at the lower temperatures, as the peak at 808nm increased to a maximum of σ a eff = 18 pm 2 around 120 K, then reduced to 16.9 +/− 0.2 pm 2 at 77K. This is attributed to the fact that this peak consists of two lines, Z 1 →S 1 and Z 3 →S 4 , following the notation of [10,11], and the fractional population in Z 3 starts to diminish quickly below 170K, while Z 1 is gaining over the same temperature range, nearly a 2-fold increase at LNT with respect to RT (Fig. 3(a)).…”

Section: Methodsmentioning

confidence: 86%

Cryogenically cooled 946nm Nd:YAG laser

Yoon¹,

Mackenzie²

2014

Opt. Express

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Abstract:We present the first multi-Watt demonstration of a diode pumped cryogenically cooled neodymium-doped yttrium aluminum garnet (YAG) laser operating at 946 nm on the 4 F 3/2 → 4 I 9/2 transition. 3.8 W of continuous wave output power for 12.8 W of absorbed pump was obtained with a slope efficiency of 47%. In addition, we made an extensive characterization of the spectroscopic properties around the pump and laser wavelengths over the temperature range of 77 K to 300 K to find an increase of ~2.5 times for both the absorption and emission cross sections at the lowest temperature.

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Section: Methodsmentioning

confidence: 86%

Cryogenically cooled 946nm Nd:YAG laser

Yoon¹,

Mackenzie²

2014

Opt. Express

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“…13 K was chosen such that the heat capacity maximum of the calculated curve would occur at 0.47 K, the temperature of the experimental maximum. The dotted curve in Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Hutchison and Wong 8 have carried out an electron spin resonance (ESR) study of the various rare-earth ions diluted in LaCl 3 . Dieke and others [9][10][11][12][13][14][15][16][17][18][19][20][21][22] have made extensive studies of the optical spectra of the rare-earth trihalides. Those measurements yield g values, values of the crystal field splittings, and nuclear hyperfine interactions which can be carried over to the study of the concentrated crystals.…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Magnetic Properties of Some Hexagonal Rare-Earth Trihalides

1969

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We have made measurements of the low-temperature heat capacity, magnetic susceptibility, and chlorine nuclear quadrupole resonance (NQR) of CeCU, PrCU, NdCl 3 , SmCl 3 , and CeBr 3 . Some measurements have been made on PrBr 3 and NdBr 3 . The experimental results can be closely correlated with antiferromagnetic linear chain models. The NQR shows that long-range order occurs in PrCl 3 at 0.428 K. In NdCl 3 , the NQR line disappeared at 0.50 K and the resonances produced by an internal field appeared at 0.17 K. In CeCl 3 , the NQR resonance disappeared at 0.110 K and no lines were found above 0.054 K. In SmCl 3 , the NQR line disappeared at 0.21 K and no resonance was observed above 0.1 K. We have measured the internal field, which is proportional to the sublattice magnetization, at the chlorine nucleus in PrCl 3 and NdCl 3 below their Neel temperatures, and have determined the magnitude and the direction of the internal field at the chlorine nucleus relative to the principal axes of the electric field gradient.

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“…The crystal and copper (Cu) mount was heated by a resistor in thermal contact with the mount. With this configuration the crystal temperature could be tuned from 300 K to 450 K to investigate the temperature dependence of the absorption coefficient from the 4 I 9/2 (Z) ground state to the 4 F 5/2 and 2 H 9/2 (S) Nd 3+ excited states, using the nomenclature of [23]. To obtain an optimum signal to noise ratio we used an AR coated 3.2 mm long 0.97 at.…”

Section: B Z-scan Measurement For Etu Coefficientmentioning

confidence: 99%

Measuring the Elevated Temperature Dependence of Up-Conversion in Nd:YAG

Yan

Yoon

Beecher

et al. 2015

IEEE J. Select. Topics Quantum Electron.

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We present measurement of the temperature dependence of the energy transfer up-conversion coefficient from the main upper laser level ( 4 F 3/2 ) of 1at.% doped Nd:YAG. This is achieved by a very simple method employing a z-scan technique, monitoring the transmitted power of a probe laser tuned to the main absorption peak at 808 nm. For analysis a simple model was developed and the temperature dependence of the absorption coefficient for this absorption band, covering the temperature range from 300-450K, was measured. A spatially dependent two-level rate equation model is described, which simulates the relationship between the incident pump irradiance and power transmitted by the crystal, as a function of its temperature. By comparing the experimental results with the model, we obtain a value for the energy transfer up-conversion coefficient of 4.7 ± 0.5 ×10 -17 cm 3 /s, at room temperature, decreasing to 1.6 ± 0.2 ×10 -17 cm 3 /s at 450 K.

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The State of the Nd3+ Ion as Derived from the Absorption and Fluorescence Spectra of NdCl3 and Their Zeeman Effects

Cited by 122 publications

References 12 publications

Cryogenically cooled 946nm Nd:YAG laser

Cryogenically cooled 946nm Nd:YAG laser

Low-Temperature Magnetic Properties of Some Hexagonal Rare-Earth Trihalides

Measuring the Elevated Temperature Dependence of Up-Conversion in Nd:YAG

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