[1] KOGELNIK H.Coupled wave theory for thick hologram gratings[J].Bell System Technical Journal,1969,48(9):2909-2947.
[2] SONG Y Sh,JI J R,DOU W H,et al.Diffraction efficiency analysis of the phase grating in paraelectric KTN crystal[J].Laser Technology,2010,34(1):85-87(in Chinese).
[3] MA H B.Study on the affecting factors of ferroelectric phase transition[J].Journal of Jilin Normal University (Natural Science Edition),2007,74(1):74-78(in Chinese).
[4] BITTON G,FELDMAN Y,AGRANAT A J.Relaxation processes of off-center impurities in KTN: Li crystals[J].Journal of Non-Crystalline Solids,2002,305(1):362-367.
[5] TREPAKOV V A,JASTRABIK L,KAPPHAN S,et al.Phase transitions,related properties and possible applications of (K,Li)(Ta,Nb)O3 crystals[J].Optical Materials,2002,19(1):13-21.
[6] AGRANAT A J,LEYVA V,SAYANO K,et al.Photorefractive properties of KTa1-xNbxO3 in the paraelectric phase[J].SPIE,1989,1148:52-66.
[7] AGRANAT A J,de OLIVEIRA C E M,ORR G.Dielectric electroop-tic gratings in potassium lithium tantalate niobate[J].Journal of Non-Crystalline Solids,2007,353(74):4405-4410.
[8] YARIV A,ORLOV S S,RAKULJIC G A.Holographic storage dynamics in lithium niobate:theory and experiment[J].J O S A,1996,B13(11):2513-2523.
[9] VOLK T,OHLECKE M W.Thermal fixation of the photorefractive holograms recorded in lithium niobate and related crystals[J].Critical Reviews in Solid State and Materials Sciences,2005,30(3):125-151.
[10] IMAI T,SASAURA M,NAKAMURA K,et al.Crystal growth and electro-optic properties of KTa1-xNbxO3[J].NTT Technical Review,2007,5(9):1-8.
[11] JI J R.Advanced optics(Ⅱ)[M].Beijing:Science Press,2007:170-174(in Chinese).