The nonlinear-optical coefficients of RCOB(R=Gd,Y)crystals are measured.The spatial distribution of deff effective nonlinear-optical coefficient is determined subsequently.Our experiments show that the maximum deff oc...The nonlinear-optical coefficients of RCOB(R=Gd,Y)crystals are measured.The spatial distribution of deff effective nonlinear-optical coefficient is determined subsequently.Our experiments show that the maximum deff occurs at the second quadrant.The second-harmonic-generation efficiency reaches 48%for a 6 mm-long,(113.2°,47.4°)-cut GdCOB,and 41.5%for a 5mm-long,(113°,36.5°)-cut YCOB,respectively.The intracavity frequency doubling of GdCOB is reported for the first time.展开更多
By using a pulse laser at 532.36 nm as the incident light,stimulated Raman scattering(SRS)of a series of a-cut and c-cut Nd:Lu_(x)Y_(1−x)VO_(4)(x=0,0.10,0.26,0.41,0.61,0.67,0.80)crystals is investigated.For theπ-pola...By using a pulse laser at 532.36 nm as the incident light,stimulated Raman scattering(SRS)of a series of a-cut and c-cut Nd:Lu_(x)Y_(1−x)VO_(4)(x=0,0.10,0.26,0.41,0.61,0.67,0.80)crystals is investigated.For theπ-polarization(E||c),the gain coefficient reduced as x value increased.For theσ-polarization(E||a),the Raman gain of all of the mixed crystals is larger than the pure Nd:YVO_(4),and the maximum value is obtained from the Nd:Lu_(0.1)Y_(0.9)VO_(4)crystal.Such results are also supported by the measurement of spontaneous Raman scattering spectra.展开更多
Let R be a 2-torsion free prime ring and L a noncommutative Lie ideal of R. Suppose that （d,σ） is a skew derivation of R such that xsd（x）xt = 0 for all x ∈ L, where s, t are fixed non-negative integers. Then d = 0.
基金Supported by the Key Program of the National Natural Science Foundation of China under Grant No.69890235the Key Program of Science and Technology Research of the Minis try of Education of China under Grant No.99182.
文摘The nonlinear-optical coefficients of RCOB(R=Gd,Y)crystals are measured.The spatial distribution of deff effective nonlinear-optical coefficient is determined subsequently.Our experiments show that the maximum deff occurs at the second quadrant.The second-harmonic-generation efficiency reaches 48%for a 6 mm-long,(113.2°,47.4°)-cut GdCOB,and 41.5%for a 5mm-long,(113°,36.5°)-cut YCOB,respectively.The intracavity frequency doubling of GdCOB is reported for the first time.
基金Supported by the National Natural Science Foundation of China(61178060)the Program for New Century Excellent Talents in University(NCET-10-0552)+1 种基金the Natural Science Foundation for Distinguished Young Scholar of Shandong Province(2012JQ18)the Independent Innovation Foundation of Shandong University(2012TS215).
文摘By using a pulse laser at 532.36 nm as the incident light,stimulated Raman scattering(SRS)of a series of a-cut and c-cut Nd:Lu_(x)Y_(1−x)VO_(4)(x=0,0.10,0.26,0.41,0.61,0.67,0.80)crystals is investigated.For theπ-polarization(E||c),the gain coefficient reduced as x value increased.For theσ-polarization(E||a),the Raman gain of all of the mixed crystals is larger than the pure Nd:YVO_(4),and the maximum value is obtained from the Nd:Lu_(0.1)Y_(0.9)VO_(4)crystal.Such results are also supported by the measurement of spontaneous Raman scattering spectra.
基金The NSF(1408085QA08)of Anhui Provincialthe Key University Science Research Project(KJ2014A183)of Anhui Province of Chinathe Training Program(2014PY06)of Chuzhou University of China
文摘Let R be a 2-torsion free prime ring and L a noncommutative Lie ideal of R. Suppose that （d,σ） is a skew derivation of R such that xsd（x）xt = 0 for all x ∈ L, where s, t are fixed non-negative integers. Then d = 0.
