Visible–NIR emission and structural properties of Sm3+ doped heavy-metal oxide glass with composition B2O3–PbO–Bi2O3–GeO2

Novel NIR emission 4 G 5/2 to 6 F 11/2 and efficient multichannel emissions of Sm 3+ doped GeO 2 -PbO glass

“…In the VIS range, the value of  em ( p ) for the transitions 4 G 5/2 → 6 H 7/2 , 4 G 5/2 → 6 H 9/2 and 4 G 5/2 → 6 H 11/2 transitions have very high values compared to other systems doped with Sm 3+ , as shown in Table 4, indicating that the GePb:Sm glass has a great potential for laser applications operating in the orange-red spectral range. In the NIR emission the values of  em ( p ) are larger than other glasses doped with Sm 3+ that report emissions in this spectral region [5,24,43,44]. The measured values for the FWHM are 25.4, 24.8, 46.6 and 30.9 nm for 4 G 5/2 → 6 F 5/2 , 4 G 5/2 → 6 F 7/2 , 4 G 5/2 → 6 F 9/2 and 4 G 5/2 → 6 F 11/2 transitions, respectively.…”

“…The spectroscopy properties of RE 3+ ions in the glass host can be modified through ion-host interaction and a wide variety of host glasses have been studied aiming to enhance the luminescent properties. Heavy metal oxide glasses are very suitable in this context since they present a large solubility for RE 3+ ions, relatively low phonon energy, large optical transparency in VIS-NIR region, good thermal stability and high refractive index [4,5], being a very interesting host to incorporate RE 3+ in photonic devices applications. Broadband amplifiers and tunable lasers are key devices for the development of dense wavelength-division multiplexing (DWDM) network systems.…”

“…The emission in the NIR region in RE 3+ doped glasses strongly depends on multiphonon relaxation processes (MRP) and, therefore, glasses with low vibrational energies may present efficient emission in this spectral region [19][20][21]; however, poor thermal and chemical properties of some of these glasses limit their applications. For Sm 3+ ion, few works report NIR emissions [5,[22][23][24].…”

Optical and luminescence properties of Li2O Gd2O3MO B2O3Sm2O3 (MO Bi2O3, BaO) glasses

“…Several researchers investigated the optical, structural, and luminescence properties of Sm 3+ ions in different borate glass structure. Herrera et al [11] study Visible-NIR emission and structural properties of Sm 3+ doped heavy-metal oxide glass with composition B 2 O 3 -PbO-Bi 2 O 3 -GeO 2 to develop tunable laser and optoelectronics devices. Mariyappan et al [12] investigate the effect of Bi 2 O 3 on the structural and spectroscopic properties of Sm 3+ ions doped sodium fluoro-borate glasses for useful gain medium and reddish orange laser applications.…”

Study on luminescent properties of Tb3+ and Sm3+ co-doped CaSiO3 phosphors for white light emitting diodes

“…Samarium ions are important activator with 4f 5 electronic configuration which is widely used in various hosts [21][22][23][24][25][26][27][28]. The trivalent Sm 3+ ions have a strong luminescence in the reddish-orange range of wavelength due to 4 G 5/2 → 6 H J (J=5/2, 7/2, 9/2) transitions.…”