Rate equation analysis and energy transfer of Er3+-doped Ga2S3–GeS2–La2S3 glasses

Upconversion from the 4I13/2 and 4I11/2 levels in Er:YAG

“…Our data agree qualitatively with the results obtained by Shi et al [20], who found a tendency of decreasing of q with increasing Er concentration. A similar behavior was observed for Er-doped Ga 2 S 3 -GeS 2 -La 2 S 3 glasses [27], while for Er in ZBLAN glass, a general tendency of increasing was observed [31]. The discussion on the errors estimated for q in our measurements is given in Section 6.…”

“…A first attempt to determine the ETU parameter corresponding to 4 I 13/2 has been made using the time delay of the onset of stimulated emission for a 35-at% Er:YAG rod [9]. Other methods are based on the analysis of the shape of the luminescence decay of the ''donor'' or ''acceptor'' levels for short [19][20][21][22][23][24][25][26] or rectangular pulse [14,27] excitation or on the frequency analysis of the response of erbium-doped crystals excited with a sinusoidally modulated laser beam [28][29][30].…”

Recent photoluminescence research on chalcogenide glasses for photonics applications

“…At high C Ga / C Er , the spectra are smooth curves with a single dominant peak similar to published spectra for other materials e.g. [16,17]. As C Ga /C Er decreases, the lineshapes become more complicated and additional multiple maxima appear.…”

Photoluminescence in Er-doped Ge–Ga–Se glasses

“…Refs. [12,13]). As C Ga /C Er decreases, the lineshapes become more complicated and additional maxima appear.…”