Huiyan Fan

Mid-infrared spectroscopic properties and energy transfer of Er3+/Yb3+ co-doped bismuth germanate glass.

An Er3+/Yb3+ co-doped bismuth germanate glass is synthesized and analyzed. The radiative characteristics and mid-infrared spectroscopic properties are investigated under excitation of a conventional 980 nm laser diode. The prepared glass possesses higher spontaneous transition probability (68.82 s(-1)) and larger calculated emission cross-section (7.73×10(-21) cm2) corresponding to the 4I11/2→4I13/2 transition. The calculated energy migration coefficient (CDD) among Yb3+ ions is larger than the energy transfer coefficient (CDA) from Yb3+ to Er3+, indicating the energy transfer process assisted with energy migration. The excellent spectroscopic properties along with the outstanding thermal stability suggest that this glass may become an attractive host for developing solid state lasers operating in the mid-infrared range.

Optical properties and supercontinuum generation of TeO 2 -based glass

This work measured thermal stability, optical transmittance, nonlinear optical properties and supercontinuum generation of a novel TeO2-based glass and demonstrated its potential application in optical devices.

The thermal and optical properties of Bi 2 O 3 -B 2 O 3 -Ga 2 O 3 glasses

Glasses xBi<inf>2</inf>O<inf>3</inf>-35B<inf>2</inf>O<inf>3</inf>-(65-x)Ga<inf>2</inf>O<inf>3</inf> (x=45, 50, 55, 60 mol%) were prepared. The density and molar volume increase with the content of B<inf>2</inf>O<inf>3</inf> but the thermal and optical properties become better with the increase of Ga<inf>2</inf>O<inf>3</inf> content.