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Chinese Physics Letters 1996年第10期13卷 741-743页

作者： MU Xiao-dong shao Zong-shu ZHANG Heng-li KONG Qing-yu JIANG Min-hua National Laboratory of Crystal Materials Shandong UniversityJinan 250100

Using the Cerenkov second harmonic generation, 478 nm blue and 402nm violet light are generated by direct frequency doubling of 956 and 804 nm diode lasers in a same proton exchanged MgO:LiNbO3 waveguide. Under the low fundamental guide wave power of less than 1mW, the estimated value of the output blue and violet light power is in the order of 0.1-0.01μW.

关键词： Waveguide violet doubling

Construction and application of carbohydrate microarrays to detect foodborne bacteria

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Chinese Journal of Natural Medicines 2020年第3期18卷 219-225页

作者： HU Jing XIAO Yong shao shu-an GU Rui SHI Qi-Min LIU Zhong-Hua YIN Jian Wuxi School of Medicine Jiangnan UniversityWuxi 214000China Microbiology Laboratory Wuxi Center for Disease Control and PreventionWuxi 214122China Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of EducationSchool of BiotechnologyJiangnan UniversityWuxi 214122China

The rapid detection of pathogenic bacteria is vital for the prevention of outbreaks of infectious diseases, including infections by the common foodborne bacteria *** and Salmonella Carbohydrate microarrays have been developed as a powerful method to investigate carbohydrate-protein interaction with only very small amounts of glycans, which show great potential for detect the carbohydrate mediated interaction with pathogens. Here, different mannose-coated microarrays were constructed and tested with ***(K-12 and BL-21) and Salmonella enterica strains(ATCC9184 and ATCC31685) exhibiting different mannose binding affinities. The optimized carbohydrate microarray was then applied to test the binding of 12 Salmonella enterica and 9 *** isolates from local patients for the first time and showed strong binding with certain serovars or subtypes. The results showed that microarray probed with the single mannose structure is not enough for the detection of bacteria with various serovars or subtypes, which contain a high degree of allelic variation in adhesin. We suggest that a complex carbohydrate microarray containing different glycan conformation may be needed for detection of different bacteria isolates.

关键词： Carbohydrate microarray Mannose FimH Adhesin

Origin of Self-pumped Phase Conjugate Waves in KNSBN Crystals

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Chinese Physics Letters 1996年第7期13卷 523-526页

作者： ZHANG Liang-min ZHANG Jing-wen shao Zong-shu MU Xiao-dong CHEN Huan-chu JIANG Min-hua National Laboratory of Crystal Materials Shandong UniversityJinan 250100

A multistage four-wave mixing interaction region model resulting in self-pumped phase conjugation output of the incident beam is suggested to explain the experimental *** competition between forward and backward two-wave mixing is demonstrated and used to explain the formation of the *** backscattering beams from random noise beams may be amplified by contradirectional two-wave mixing selectively and act as pumped beams from our experimental observations under a laser entering the negative c face of copper-doped potassium sodium strontium barium niobate *** phase conjugation reflectivity of as high as 33%is measured.

关键词： pumped mixing backward

Mutually Pumped Phase-Conjugate Mirror: Sickle Configuration

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Chinese Physics Letters 1996年第9期13卷 678-681页

作者： ZHANG Liang-min ZHANG Jing-wen shao Zong-shu MU Xiao-dong CHEN Huan-chu JIANG Min-hua National Laboratory of Crystal Materials Shandong UniversityJinan 250100

A mutually pumped phase conjugator is demonstrated with a novel photorefractive crystal of copper-doped potassium sodium strontium barium niobate,in which the beams travel in a geometric path similar to the outline of a *** maximum reflectivity is up to 168%.Faster response times are measured and are also simulated as a function of incident beam power *** available input geometries are *** phase conjugation signals exist wide range of angular and positional *** apparent cross talk is *** faster build-up process of phase conjugation beams is tentatively explained.

关键词： pumped Configuration mutually

Two-Photon Absorption and Optical Power Limiting Based on New Organic Dyes

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Chinese Physics Letters 2001年第8期18卷 1120-1122页

作者： ZHOU Guang-Yong WANG Chun LEI Hong WANG Dong shao Zong-shu JIANG Min-Hua State Key Laboratory of Crystal Materials Shandong UniversityJi’nan 250100 State Key Laboratory of Ultrafast Laser Spectroscopy Zhongshan UniversityGuangzhou 510275 Department of Electronic Engineering Shandong UniversityJi’nan 250100

Two new organic dye samples J and L with a large two-photon absorption(TPA)cross section have been *** linear absorption spectra show that there is no linear absorption at the wavelength from 650 to 1200 *** molecular TPA cross section was measured to be as high as 2.59 × 10^(-47)cm^(4)·s and 2.98 × 10^(-47)cm^(4)·s at 1064 nm for samples J and L,*** input-output curves indicate that there is a clear optical power limiting behaviour when the input intensity is higher than 0.4 GW/cm^(2).Furthermore,basic theorety of TPA process has been discussed.

关键词： absorption limiting behaviour

Effect of Long-Term Application of K Fertilizer and Wheat Straw to Soil on Crop Yield and Soil K Under Different Planting Systems

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Agricultural Sciences in China 2007年第2期6卷 200-207页

作者： TAN De-shui JIN Ji-yun HUANG shao-wen LI shu-tian HE Ping Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences/Key Laboratory of Plant NutritionCycling Ministry of Agriculture Beijing 100081 P.R. China

Effect of application of K fertilizer and wheat straw to soil on crop yield and status of soil K in the plough layer under different planting systems was studied. The experiments on long-term application of K fertilizer and wheat straw to soil in Hebei fluvo aquic soil and Shanxi brown soil in northern China were begun in 1992. The results showed that K fertilizer and straw could improve the yields of wheat and maize with the order of NPK ＋ St 〉 NPK 〉 NP ＋ St 〉 NP, and treatment of K fertilizer made a significant difference to NP, and the efficiency of K fertilizer in maize was higher than in wheat under rotation system of Hebei. In contrast with Shanxi, the wastage of soil potassium was a more serious issue in the rotation system in Hebei, only treatment of NPK ＋ St showed a surplus of potassium and the others showed a wane. K fertilizer and straw could improve the content of water-soluble K, nonspecifically adsorbed K, non-exchangeable K, mineral K, and total K in contrast to NP; however, K fertilizer and straw reduce the proportion of mineral K and improve proportion of other forms of potassium in the two locating sites. Compared with the beginning of orientation, temporal variability character of soil K content and proportion showed a difference between the two soil types; furthermore, there was a decrease in the content of mineral K and total K simultaneously in the two locating sites. As a whole, the effect of K fertilizer applied to soil directly excelled to wheat straw to soil. Wheat straw to soil was an effective measure to complement potassium to increase crop yield and retard the decrease of soil K.

关键词： different planting systems long-term application of K fertilizer wheat straw to soil crop yield soil K

Self-Frequency Doubling Laser Performance of Nd:GdCOB Crystal with a Phase-Matching Angle Out of the Principal Plane

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Chinese Physics Letters 1999年第9期16卷 651-652页

作者： LÜJun-hua LI Guang-ming LIU Jun-hai ZHANG shu-jun CHEN Huan-chu JIANG Min-hua shao Zong-shu National Key Laboratory of Crystal Materials Shandong UniversityJinan 250100

The self-frequency doubling laser performance of Nd:GdCOB crystal cut in phase-matching direction(θ=66.3°,Ф=134.4°)was compared with the crystal cut in the direction of(θ=90°,Ф=46°).Results show that the former has a higher second-harmonic conversion efficiency than the *** Ti:sapphire laser as pumping source,a maximum of 11.3mW of green light has been obtained with an incident power of *** corresponds to an optical-optical conversion efficiency of 2.2%.Laser threshold for self-frequency doubling operation is measured to be 1 *** our knowledge,this is the lowest threshold achieved so far.

关键词： Nd: pumping Crystal

Effect of Strontium Ion on the Growth and Second-Harmonic Generation Properties of GdCa_(4)O(BO_(3))_(3) Crystal

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Chinese Physics Letters 2001年第1期18卷 63-64页

作者： ZHANG shu-Jun CHENG Zhen-Xiang LIU Jun-Hai HAN Jian-Ru WANG Ji-Yang shao Zong-shu CHEN Huan-Chu State Key Laboratory of Crystal Materials Shandong UniversityJi'nan 250100

Large sized and optical quality GdCa_(4)O(BO_(3))_(3)(GdCOB)crystal with calcium partially substituted by strontium(Sr)ions was grown for the first *** x-ray powder diffraction shows that the Sr ion has an effect on the cell parameters of the GdCOB crystal Second-harmonic generation(SHG)experiments were performed on the Sr:GdCOB and GdCOB crystals along the spatial phase-matching *** results show that the cw green laser output power is 1.04 W when the laser diode pump power is 10 W in the Nd:YVO_(4)/Sr:GdCOB intracavity *** the slope efficiency of Nd:YVO_(4) and the fundamental laser in cavity,the intracavity SHG conversion efficiency of the GdCOB crystal is 21%while it is 24%for the Sr:GdCOB crystal,the SHG conversion efficiency is improved by 14%.The effect of the Sr ions on the nonlinearity of the GdCOB crystal is also discussed by using the anion group theory.

关键词： intracavity pump Crystal

Growth,Defects and Non-critical Phase Matching of Nb Doped KTP Crystals

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Chinese Physics Letters 1996年第3期13卷 203-206页

作者： WEI Jing-qian WANG Ji-yang LIU Yao-gang WANG Chang-qing shao Zong-shu GUAN Qing-cai JIANG Min-hua Institute of Crystal Materials Shandong UniversityJi'nan 250100

A series of Nb doped KTP crystals are grown with seed Aux method and Hux pulling *** results of our investigation on growth,morphology defects of the crystals are reported in this *** obtained the relationship between Nb contents and second-harmonic generation angles of the *** phase matching has been realized by 4%Nb doped KTP crystal for Nd:YAG laser 1.06μm output.

关键词： Nd:YAG Crystal Matching

Thermal Lens Determination of End-Pumped Solid-state Lasers by a Simple Direct Approach

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Chinese Physics Letters 1999年第3期16卷 181-183页

作者： LIU Jun-hai LU Jian-ren LÜJun-hua shao Zong-shu JIANG Min-hua National Laboratory of Crystal Materials Shandong UniversityJi’nan 250100

The stability of linear planar resonators involved in solid-state lasers is entirely decided by the thermal lens of the laser *** exists a critical point between stable state and unstable state at which the thermal focal length equals the distance from the center of the crystal to one end *** on this fact,a new method for measuring the thermal focal length of the laser crystal has been presented and applied to a Nd^(3+):YVO_(4) crystal at various absorbed pump power levels up to 10 *** results have shown to be in good agreement with theoretical calculation.

关键词： pump state crystal