1975年6月15日 · The decay of the excited 4S3/2 state of Er3+ ions in LaF3 at 295°K has been investigated in detail. The energy is transferred from the thermally populated multiplet 2H11/2. The decay curve of the...

2007年10月17日 · LaF 3: Er, Yb nanoparticle-doped organic-inorganic hybrid material waveguides were demonstrated using reactive ion etching technology. The absorption and photoluminescence spectra were observed on a 140 μ m thick …

The rates of radiative and nonradiative decay were determined for several excited states of Er'+ in LaF3 from calculated spontaneous emission probabilities and measured lifetimes. Electric-dipole, magnetic-

The rates of radiative and nonradiative decay were determined for several excited states of Er 3 + in La F 3 from calculated spontaneous emission probabilities and measured lifetimes. Electric-dipole, magnetic-dipole, and electric-quadrupole transition probabilities were evaluated using intermediate coupled states derived from computer ...

2020年4月15日 · In the present work, Yb 3+ /Er 3+ co-doped LaF 3, T-LaOF and R–LaOF phosphor are synthesized using hydrothermal method. UC emission of Er 3+ from three different host matrices are investigated and compared upon 980 nm excitation. The reason responsible for the enhancement of UC emission is explained by varying the host matrices.

The analysis of the absorption spectrum of Er 3+ in LaF 3 is extended into the ultraviolet region to 2000 Å. A number of fluorescence lines recently observed in the region from 3000 to 25 000 Å is also reported.

Optical-absorption, -emission, and -excitation spectra are presented for Er + ions in fluorozirconate glass. Measured oscillator strengths of the transitions between Jmanifolds at 300 and 15 K are compared with calculated electric and magnetic dipole oscillator strengths. Radiative rates for five luminescing states were calculated. The nonradiative

2009年12月22日 · A LaF 3: Er, Yb nanoparticle-doped organic–inorganic hybrid materials waveguide amplifier is demonstrated using reactive ion etching. A maximum gain of approximately 6.8 dB is observed in a 20-mm-long waveguide. Under excitation at 976 nm, the waveguides emit a strong green upconversion luminescence.

2020年6月25日 · A novel Nd,Er:LaF 3 laser crystal was successfully grown and analyzed for the first time, to the best of our knowledge. An enhanced ∼2.7 μm emission was observed in Nd,Er:LaF 3 crystal under an 808 nm excitation indicating a promising sensitization function to Er 3+ ions by Nd 3+ ions.

To obtain information about the modes and rates of radiative and nonradiative processes for rare-earth ions in crystals, an investigation was made of Er'+ in LaF3. t Research supported in part by U. S. Army Engineering Re-search and Development Laboratory, Fort Belvoir, Virginia, under Contract No. DA44-009-AMC-743 (T).