Growth and spectroscopic characterization of Pr:Gd2SrAl2O7 crystal-A potential solid red laser material - Details

author：

Lin, Ziwei (Lin, Ziwei.) ^[1] | Dong, Xiaoqian (Dong, Xiaoqian.) ^[2] | Dong, Jianyue (Dong, Jianyue.) ^[3] | Yuan, Feifei (Yuan, Feifei.) ^[4] | Lin, Zhoubin (Lin, Zhoubin.) ^[5]

Indexed by：

EI Scopus SCIE

Abstract：

In　this　article,　a　series　of　(PrxGd1-x)2SrAl2O7　(x　=　0.006-0.05)　polycrystalline　compounds　were　synthesized　by　traditional　solid-state　reaction　to　find　out　the　optimum　Pr　ion＇s　concentration　of　the　best　fluorescence　perfor-mance　for　single　crystal　growth.　Then,　a　transparent　0.95　at.%　Pr:Gd2SrAl2O7　(Pr:GSAO)　single　crystal　was　successfully　grown　by　the　Czochralski　method.　Spectroscopic　properties　and　Judd-Ofelt　theory　analysis　of　this　crystal　were　investigated　in　detail.　The　Pr:GSAO　crystal　has　a　strong　and　broad　absorption　band　at　about　453　nm,　with　the　absorption　cross　section　of　4.53　x　10-20　cm2　and　the　full　width　at　half　maximum　(FWHM)　of　5.10　nm　(n-polarization),　which　matches　well　with　the　emission　bands　of　InGaN　laser　diodes.　There　are　a　large　number　of　emission　peaks　in　the　visible　region,　the　strongest　emission　peak　is　located　at　about　662　nm　with　the　cross　section　of　1.20　x　10-18　cm2　(n).　The　fluorescence　lifetime　of　the　3P0　energy　level　of　Pr:GSAO　crystal　is　5.55　&　mu;s.　These　results　reveal　that　the　Pr:GSAO　crystal　is　a　potential　candidate　for　red　lasers.

Keyword：

A1 A2 B1 B3 Characterization Czochralski method Inorganic compounds Oxides Single crystal growth Solid state laser

Community：

[ 1 ] [Lin, Ziwei]Fuzhou Univ, Coll Chem, Fuzhou 350108, Peoples R China
[ 2 ] [Dong, Xiaoqian]Fuzhou Univ, Coll Chem, Fuzhou 350108, Peoples R China
[ 3 ] [Dong, Jianyue]Fuzhou Univ, Coll Chem, Fuzhou 350108, Peoples R China
[ 4 ] [Yuan, Feifei]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China
[ 5 ] [Lin, Zhoubin]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China
[ 6 ] [Lin, Ziwei]Univ Chinese Acad Sci, Fujian Coll, Fuzhou 350002, Peoples R China
[ 7 ] [Dong, Xiaoqian]Univ Chinese Acad Sci, Fujian Coll, Fuzhou 350002, Peoples R China
[ 8 ] [Dong, Jianyue]Univ Chinese Acad Sci, Fujian Coll, Fuzhou 350002, Peoples R China
[ 9 ] [Lin, Zhoubin]Univ Chinese Acad Sci, Fujian Coll, Fuzhou 350002, Peoples R China