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偶氮掺杂液晶中热致光学非线性的测量 被引量:3

Measurement of optical nonlinearity originating from photo-induced thermal effect for azo-dye-doped liquid crystal
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摘要 偶氮掺杂液晶具有非常强的三阶光学非线性,其非线性机理包括光致热效应等多种物理机理。为了测量偶氮掺杂液晶三阶光学非线性,本文采用非线性干涉法,定量测量了波长632.8nm下,光强变化所引起的折射率改变。为了测量得到热效应对掺杂液晶非线性的贡献,我们提出了温度等效法,通过在暗室中加热掺杂液晶样品产生与光照时相同的温度变化,模拟出等效的热效应,从而将热效应从多种非线性机理中单独区分出来;通过测量此时的折射率改变,以及对应的温度和光强变化,得到了热效应导致的光学非线性。为了提高非线性干涉方法的灵敏度和消除环境震动带来的误差,本文采用了双路干涉的方法,使得测量精确性大为提高。测量结果表明:在波长632.8nm下,掺杂液晶三阶非线性系数n_2为0.268cm^2/W,其中热效应的贡献为0.091cm^2/W。 The azo-dye-doped liquid crystals(ADDLCs)have strong third-order optical nonlinearity,which arises from multiple nonlinear mechanisms,including photo-induced thermal effect and isomerization effect,etc.In this paper,in order to obtain the value of third-order optical nonlinearity in ADDLCs,we use a method of nonlinear interferometry to measure the change of refractive index at the wavelength 632.8nm,deriving from intensity's change.A temperature equivalent method is proposed to quantitatively measure the contribution of thermal effect to the third-order optical nonlinearity,which simulates equivalent thermal effect through heating the ADDLC sample and producing the same temperature change as the irradiation light induces.Through this method,the thermal effect canbe distinguished from multiple nonlinear effects.By measuring the change of refractive index and the corresponding temperature and intensity changes,we have obtained the value of third-order optical nonlinearity originating from thermal effect.Besides,a double-beam interferometry is used to improve the accuracy of measurement and eliminate the error from environmental shock,which increases the accuracy substantially.The measurement results show that,at the wavelength 632.8nm,the thirdorder optical nonlinear coefficient n2 of DR1-doped LC is 0.268cm^2/W,to which the contribution of thermal effect is 0.091cm^2/W.
出处 《液晶与显示》 CAS CSCD 北大核心 2016年第2期131-137,共7页 Chinese Journal of Liquid Crystals and Displays
基金 973项目(No.2013CB328804) 国家自然科学基金(No.61307028 No.61405114) 上海市科委基金项目(No.13ZR1420000 No.14ZR1422300)~~
关键词 三阶非线性效应 偶氮掺杂液晶 热效应 温度等效法 双路干涉法 third-order optical nonlinearity azo-dye-doped liquid crystal thermal effect temperature equivalent method double-beam interferometry
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  • 1于凤梅,郭康贤,王克强.Morse势阱中线性和三阶非线性光折射率的改变[J].发光学报,2005,26(5):569-574. 被引量:4
  • 2郑金桔,郑著宏.CdSe/ZnSe自组装量子点中非线性系数随着温度的规律性变化(英文)[J].发光学报,2010,31(6):836-841. 被引量:2
  • 3REICHELT S, HAuSSLER R. FUTTERER G. etal. Depth cues in human visual perception and their realization in 3D displays[C]. Proc. SPIE 7690. Three-Dimensional Imaging. Visualization. and Display 2010 and Dis?play Technologies and Applications for Defense. Security. and Avionics IV. 76900B. Orlando. Florida:SPIE. 2010. 被引量:1
  • 4GENG J. Three-dimensional display technologies [J]. Advances in Optics and Photonics, 2013(5): 456-535. 被引量:1
  • 5OSTEN S, KRUGER S, STEINHOFF A. Spatial light modulators based on reflective micro-displays (auf reflek?tiven mikrodisplays basierende SMLs (spatial light modulators? [J]. tm- Technisches Messen , 2006, 73 (3) : 149-156. 被引量:1
  • 6HUEBSCH MAN M, MUNJULURI B, GARNER H. Dynamic holographic 3-D image projection[J]. Optics Ex?press, 2003,11 (5): 437-445. 被引量:1
  • 7SMALLEY D E, SMITHWICK Q Y J, BOVE V M, etal. Anisotropic leaky-mode modulator for holographic vide?o displays[J]. Nature, 2013, 498(7454): 313-317. 被引量:1
  • 8TAY S, BLANCHE P A, VOORAKARANAM R, etal. An updatable holographic three-dimensional display[J].Nature, 2008, 451(7179): 694-698. 被引量:1
  • 9BLANCHE P A, BABLUMIAN A, VOORAKARANAM R, et al. Holographic three-dimensional telepresence using large-area photorefractive polymer[J]. Nature, 2010, 468(7320): 80-83. 被引量:1
  • 10TSUTSUMI N, KINASHI K, NONOMURA A, etal. Quickly updatable hologram images using poly(N-vinyl car?bazole) (PVCz) photorefractive polymer composite[J]. Materials, 2012(5): 1477-1486. 被引量:1

二级参考文献36

  • 1王防震,陈张海,柏利慧,黄少华,沈学础.CdSe/ZnSe异质结构中Zn_(1-x)Cd_xSe量子岛(点)的显微荧光光谱和显微拉曼光谱研究[J].物理学报,2006,55(5):2628-2632. 被引量:4
  • 2Regelman D V,Mizrahi U,Gershoni D,et al.Semiconductor quantum dot:A quantum light source of muhicolor photons with tunable statistics[J].Phys.Rev.Lett.,2001,87(25):257401-1-4. 被引量:1
  • 3Strauf S,Hennessy K,Rakher M T.Self-tuned quantum dot gain in photonic crystal lasers[J].Phys.Rev.Left.,2006,96(12):127404-1-4. 被引量:1
  • 4He J,Krenner H J,Pryor C,et al.Growth,structural,and optical properties of self-assembled (In,Ga) As quantum posts on GaAs[J].Nano Lett.,2007,7(3):802-806. 被引量:1
  • 5Rosen D L,Li Q X,Alfano R R,et al.Native defects in undoped semi-insulating CdSe studied by photoluminescence and absorption[J].Phys.Rev.B,1985,31(4):R2396-R2403. 被引量:1
  • 6Furdyna J K,Lee S.Optical properties of self-assembled Ⅱ-Ⅵ quantum dots[J].SPIE,1998,3283:774-784. 被引量:1
  • 7Schmidt T,Lischka K.Excitation-power dependence of the near-band-edge photolumineseence of semiconductors[J].Phys.Rev.B,1992,45(16):R8989-8994. 被引量:1
  • 8Wachter S,Don D D,Schmidt M,et al.Relaxation of localized excitons in CdSe/ZnSe heterostructares containing quantum islands of different sizes[J].Phys.Star.Sol.(b),2001,224(2):437-441. 被引量:1
  • 9Karczewski G,Mackowski S,Kutrowski M,et al.Photoluminescence study of CdTe/ZnTe self-assembled quantum dots[J].AppL Phys.Lett.,1999,74(20):3011-3013. 被引量:1
  • 10Bauknecht A,Siebentritt S,Albert J.Radiative recombination via intrinsic defects in CuxGaySe2[J].J.Appl.Phys.,2001,89(8):4391-4440. 被引量:1

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