Lasers based on erbium ions using 4 I 11/2​→​ 4 I 13/2 transition can generate laser
radiation in the spectral range from 2.7​ μm to 3​ μm. Since the strong absorption peak of …

Mid-infrared (MIR) laser sources operating in the 2.7–3 µm spectral region have attracted
extensive attention for many applications due to the unique features of locating at the …

Up-conversion (UC) of near-infrared radiation to visible light has received much attention
because of its use in the conversion of solar radiation, luminescence thermometry …

Here is presented and discussed the history, the spectroscopic, the thermo-mechanical and
the laser properties of the new old laser crystal Yb: CaF 2, of its Sr and Ba isotypes as well …

Efficient diode-pumped passively Q-switched Er: Lu_2O_3 laser operation at 2.84 μm was
realized. A few-layer MoS_2 nanosheet film on a YAG substrate, was fabricated and …

We present the spectroscopic properties and room temperature of a cw tunable laser
operation with Yb 3+ doped CaF 2 single crystals grown in our laboratory. A laser slope …

We report what is believed to be the first demonstration of a high-power passively mode-
locked diode-pumped femtosecond laser based on an Yb^ 3+: CaF_2 single crystal, directly …

Rare earth upconversion nanoparticles (UCNPs) with the superior performance in the
biomedical field have attracted great attention. Due to the good light stability, low toxicity …

Tm3+ doped CaF2 single crystals have been grown and studied for their broadband
absorption and emission properties. Tunable laser operation was demonstrated for the first …

The effect of erbium concentration on spectroscopic properties of Er: CaF_2 crystals was
investigated. Two highest absorption cross-sections (σ_abs) at 967 nm were achieved in the …