激光与红外
激光與紅外
격광여홍외
LASER & INFRARED
2014年
1期
46-49
,共4页
倪友保%吴海信%黄昌保%程旭东%王振友%毛明生
倪友保%吳海信%黃昌保%程旭東%王振友%毛明生
예우보%오해신%황창보%정욱동%왕진우%모명생
非线性光学晶体%GaSe晶体%布里奇曼法%中远红外波段%倍频
非線性光學晶體%GaSe晶體%佈裏奇曼法%中遠紅外波段%倍頻
비선성광학정체%GaSe정체%포리기만법%중원홍외파단%배빈
nonlinear optical crystal%GaSe crystal%vertical Bridgman technique%mid-far infrared wavelength%frequen-cy doubling
针对高品质红外非线性晶体GaSe难以生长、加工的问题,研究了垂直布里奇曼法籽晶定向生长技术。制备出20 mm ×50 mm完整单晶,探索了加工工艺,对样品进行了粉末衍射,能谱等测试,晶体在1.06~15μm波段吸收系数约为0.05~0.16 cm-1,完整性、光学质量均较好。演示了9.3~10.6μm波段的CO2激光倍频实验,输出4.65~5.3μm对应倍频光。
針對高品質紅外非線性晶體GaSe難以生長、加工的問題,研究瞭垂直佈裏奇曼法籽晶定嚮生長技術。製備齣20 mm ×50 mm完整單晶,探索瞭加工工藝,對樣品進行瞭粉末衍射,能譜等測試,晶體在1.06~15μm波段吸收繫數約為0.05~0.16 cm-1,完整性、光學質量均較好。縯示瞭9.3~10.6μm波段的CO2激光倍頻實驗,輸齣4.65~5.3μm對應倍頻光。
침대고품질홍외비선성정체GaSe난이생장、가공적문제,연구료수직포리기만법자정정향생장기술。제비출20 mm ×50 mm완정단정,탐색료가공공예,대양품진행료분말연사,능보등측시,정체재1.06~15μm파단흡수계수약위0.05~0.16 cm-1,완정성、광학질량균교호。연시료9.3~10.6μm파단적CO2격광배빈실험,수출4.65~5.3μm대응배빈광。
Aiming at the problem of growth and treating of large high quality GaSe infrared crystal,the seed aided ver-tical Bridgman technique and“puck”cutting method are studied.Finally,boule size of GaSe crystal with 20mm in di-ameter and 50mm in length is obtained;some samples are prepared under different directions.There are characterized with X-ray diffraction,EDS spectrum and so on.Absorption coefficient about 0.05 ~0.1 6cm-1 in the range 1.06~1 5μm is achieved.Frequency doubling from 9.3~1 0.6 μm to 4.65 ~5.3 μm for a TEA CO2 laser is demonstrated.But how to avoid the deformation of crystals under this cure technique for direct phase matching experiments is still a big challenge.