Spectroscopic properties of ErAl3(BO3)4 single crystal

Microwave sol–gel synthesis and upconversion photoluminescence properties of CaGd2(WO4)4:Er3+/Yb3+ phosphors with incommensurately modulated structure

“…The wavelength region, occupied by the spectra obtained in the erbium-doped samples excited at 514.5 nm, fairly coincides with the UC luminescence observed for them using the excitation at 980 nm, as well as with the well-known erbium luminescence in many other hosts (see, e.g. [10]). However, the relative luminescence intensity at 2 H 11/2 -4 I 15/2 and 4 S 3/2 -4 I 15/2 transitions under the excitation at 514.5 nm differs from the case of UC luminescence.…”

“…One such class of materials is complex oxide photoluminescence crystals which exhibit different compositions and spectroscopic properties, high operation durability and emission efficiency, and a pronounced chemical stability in the air [1][2][3][4][5][6][7][8][9][10][11]. Recently, rare-earth-doped upconversion (UC) photoluminescence crystals have attracted great attention as functional materials for the frequency conversion from near infrared to visible spectral range [4,[12][13][14][15][16][17][18][19][20].…”

Temperature-Sensing Behavior Based on Upconversion Luminescence at the Rhombohedral–Tetragonal Phase Boundary

“…13 In general, Er 3+ ions as dopants exhibit upconversion luminescence. [16][17][18] As shown in Fig. 2, the UC emission properties of KNNE ceramics were investigated under 980-nm laser diode excitation.…”

Structural and spectroscopic properties of self-activated monoclinic molybdate BaSm2(MoO4)4

“…The microscope system based on Olympus BX41 microscope with an Olympus 50 x objective lens f = 0.8 mm with NA=0.75 numerical aperture provides a focal spot diameter of about 2 μm on the sample [26,27]. Single-mode argon 514 nm from a Spectra-Physics Stabilite 2017 Ar + laser of 3 mW on the sample was used as excitation light source.…”