Infrared Luminescence from Bismuth-Doped Silica Glass

Abstract

A new infrared luminescence from bismuth-doped silica glass is discovered. Spectroscopic properties of this glass are different from those of previously reported Bi2+- or Bi3+-doped glasses or crystals. Its luminescence spectrum is wide (full-width at half maximum; about 200 nm), with the peak at 1140 nm with 500 nm excitation. Absorption bands exist between the visible and near-infrared region. The lifetime of bismuth-doped silica glass is 630 µs at room temperature, which is longer than the lifetimes of Bi3+ luminescence reported previously.

Infrared luminescence and amplification properties of Bi-doped GeO2−Ga2O3−Al2O3 glasses

“…They were ascribed to the electron transitions of infrared active centers. 11,14 According to Ref. 15, the peaks at 700, 800, and 1000 nm are most probably originated from the transitions from the 3 P 0 level to the 1 D 2 , 3 P 2 , and 3 P 1 levels of the Bi + center.…”

“…11 In recent years, a number of hosts were investigated and broadband infrared luminescence was reported in silicate, 12,13 germanium, 14 phosphate, 15 and barium borate glasses. 16 It is exciting that optical amplification and lasing operation were also realized at present.…”

Bismuth-doped Silica Fiber Amplifier

“…Bismuth-doped silica glass (BiSG) is a new material that emits a broadband fluorescence peak at around 1250 nm with a bandwidth over 300 nm. We suggested BiSG which can complement the problems of the other optical amplifiers (Fujimoto & Nakatsuka, 2001;2003). It is important to understand the optical properties of the BiSG for technological applications such as optical fiber amplifier and fiber laser.…”

Near infrared photoluminescence of the univalent bismuth impurity center in leucite and pollucite crystal hosts

“…The Bi 3+ ion in the common oxidation state +3 has no optical transitions in NIR and the observed emission was attributed to possible Bi 5+ , 1 Bi 2+ , 20 Bi + , 21 Bi 0 , 8,9,22 Bi 2 À , Bi 2 2À , 23 and bismuth cluster species. 24 The related information was also summarized in the recent review.…”