Mid-infrared emission properties of Pr³⁺-doped Ge-Sb-Se-Ga-I chalcogenide glasses

Effect of glass composition on the physical properties and luminescence of Pr3+ ion‐doped chalcogenide glasses

“…5 Each batch of 10 g amount was placed in a quartz tube with an inner diameter of 10 mm. Previous research has confirmed work that 0.2 mol% is an appropriate concentration, and the emission quenching effect can be avoided.…”

“…Moreover, the Sb-containing glass has a higher refractive index than the Ga-containing glass, that is, n (Ge 20 Ga 15 Se 65 ) < n (Ge 20 Ga 10 Sb 5 Se 65 ) < n (Ge 20 Ga 5 Sb 10 Se 65 ). 5 For the Ge-Ga-Se glass, corner-sharing (CS) and edge-sharing (ES) GeSe 4/2 (GaSe 4/2 ) tetrahedra comprise the Ge-Ga-Se glass. Figure 1A displays that Pr 3+ ion-doped Ge 20 Sb 10 In 5 Se 65 glass has the highest refractive index.…”

“…[36][37][38] Given that In is in the same column as the Ga periodic table, it has the same external electronic structure as Ga. 5,16 The absorption peak of CO 2 in the air is unavoidable when testing the spectrum. Moreover, the atomic mass is heavier in In than in Ga, thus providing a locally low phonon energy environment to improve RE radiation efficiency.…”

“…Previous research has confirmed work that 0.2 mol% is an appropriate concentration, and the emission quenching effect can be avoided. 5 Each batch of 10 g amount was placed in a quartz tube with an inner diameter of 10 mm. The surface water was removed by heating (100°C) for 1 hour in a quartz glass ampoule under vacuum (10 −3 Pa).…”

“…[1][2][3][4] MIR light sources play a vital role in many applications, including biomedical sensing, environmental monitoring, and quality monitoring; thus, these sources have grown rapidly in recent years. [5][6][7][8][9] In addition, the new MIR wavelength is also meaningful for laser processing and material welding, such as human tissue cutting and welding, neurosurgery, and dermatology. [10][11][12] Chalcogenide glasses (ChG) have several properties that make them attractive as a host of rare earth (RE) ions for MIR emission 2,8,[12][13][14][15] (eg, high transparency in a wide spectral range of 0.5-20 µm depending on the composition, low optical loss in the MIR, high refractive index(n), relatively high solubility of RE elements, and low phonon energy).…”