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Cr,Er:YSGG

當前位置: 首頁 ? Products ? 激光晶體 ? Cr,Er:YSGG
Cr,Er:YSGG

Cr,Er:YSGG晶體中,Cr3+取代Ga3+或Sc3+,Y3+取代Er3+,具有尺寸大、光學損傷小、光學質量高、激光閾值低等優點。激光晶體的泵浦通常采用閃光燈或激光二極管,970nm激光二極管被認為是實現2790nm Er,Cr:YSGG激光泵浦的首選,它可以直接將Er3+激發到其激光上能級,效率高,能耗低。目前,為了實現脈沖激光輸出,人們采用了多種方法來切換Q(如聲光、電光、FTIR)。由于激光波長的特殊性,這種激光器廣泛應用于醫學、科學研究、材料加工、軍事等領域。

  • 晶體質量好
  • 超級機械性能
  • 低泵閾值
  • 高斜邊效率
  • 以中頻工作

材料規格

晶體結構立方
化學式Y2.93Sc1.43?Ga3.64O12
晶格常數12.42 ?
濃度30 at % (3.7 x 1021?cm-3?, 十二面體Er3+)
2 at % (1.7 x 1020?cm-3?, 八面體Cr3+)
波前畸變(每英寸棒長)2-Jan
表面質量10 – 5刮痕凹陷
垂直性5?
平行性30
精密研磨55 微英寸 ±5微英寸
倒角45 deg ±5 deg
倒角0.005 ±0.003 in
長度公差+0.040 / -0.000 in
直徑公差+0.0000 / -0.0020 in

物理和化學特性

導熱系數(W / mK)8
熱膨脹系數8.1×10-6/K
熱光學系數(dn / dT)(10-6/ K)12.3
硬度(莫氏)8
密度5.67g/cm3Cr&Er 摻雜)
尺寸(直徑x長度),毫米 3 x 30 12.7 x 127.0
取向<001>, <111>

光學和光譜性質

折光率1.92 at 1000nm
熒光壽命1400 μs
發射截面,cm25.2 x 10-21
激光波長,μm2.791

吸收和發射光譜

Er Cr YSGG 激光晶體 發射譜Er,Cr YSGG 激光晶體 吸收譜

參考文獻

[1]? Usumez A ,? Aykent F . Bond strengths of porcelain laminate veneers to tooth surfaces prepared with acid and Er,Cr:YSGG laser etching[J]. Journal of Prosthetic Dentistry, 2003, 90(1):24-30.
[2]? Yilmaz H G ,? Kurtulmus-Yilmaz S ,? Cengiz E , et al. Clinical evaluation of Er,Cr:YSGG and GaAlAs laser therapy for treating dentine hypersensitivity: A randomized controlled clinical trial[J]. Journal of Dentistry, 2011, 39(3):249-254.
[3]? Onay E O ,? Orucoglu H ,? Kiremitci A , et al. Effect of Er,Cr:YSGG laser irradiation on the apical sealing ability of AH Plus/gutta-percha and Hybrid Root Seal/Resilon Combinations[J]. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2010, 110(5):657-664.
[4]? Almojaly S A ,? Al-Hamdan R S ,? Alrahlah A , et al. Effect of Er,Cr:YSGG on bond strength and microleakage of dentin bonded to resin composite with different distance and irradiation time[J]. Photodiagnosis and Photodynamic Therapy, 2018, 25.
[5] F Alkhudhairy,? Naseem M ,? Bin-Shuwaish M , et al. Efficacy of Er Cr: YSGG laser therapy at different frequency and power levels on bond integrity of composite to bleached enamel[J]. Photodiagnosis & Photodynamic Therapy, 2018, 22:34-38.
[6]? Aras W M F ,? Barroso J S M ,? Blay A , et al. Er,Cr:YSGG laser irradiation influence on Y-TZP bond strength to resin cement[J]. Ceramics International, 2016, 42(12):13790-13795.
[7] A González-Mosquera,? Seoane J , L García-Caballero, et al. Er,CR:YSGG lasers induce fewer dysplastic-like epithelial artefacts than CO2 lasers: an in vivo experimental study on oral mucosa[J]. British Journal of Oral & Maxillofacial Surgery, 2012, 50(6).
[8]? Huang H H ,? Chuang Y C ,? Chen Z H , et al. Improving the initial biocompatibility of a titanium surface using an Er,Cr:YSGG laser-powered hydrokinetic system[J]. Dental Materials, 2007, 23(4):410-414.
[9] S ü?ümez,? Orhan M , A ü?ümez. Laser etching of enamel for direct bonding with an Er,Cr:YSGG hydrokinetic laser system.[J]. American Journal of Orthodontics & Dentofacial Orthopedics, 2002, 122(6):649-656.
[10]? Lee B S ,? Lin P Y ,? Chen M H , et al. Tensile bond strength of Er,Cr:YSGG laser-irradiated human dentin and analysis of dentin–resin interface[J]. Dental Materials Official Publication of the Academy of Dental Materials, 2007, 23(5):570-578.
[11] Cengiz, Esra, Yilmaz, et al. Treatment of recurrent aphthous stomatitis with Er,Cr:YSGG laser irradiation: A randomized controlled split mouth clinical study[J]. Journal of Photochemistry and Photobiology, B. Biology: Official Journal of the European Society for Photobiology, 2017, 170:1-5.
[12]? Gurney M L ,? Sharples S D ,? Phillips W B , et al. Using an Er,Cr:YSGG laser to remove lithium disilicate restorations: A pilot study[J]. Journal of Prosthetic Dentistry, 2016:90-94.

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