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Journal articles on the topic 'SHG efficiency'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Srivastava, Prakash C. "Organotellurium Derivatives—Synthesis, Structure, Supramolecular Associations and SHG Efficiency." Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry 37, no. 9 (2007): 713–18. http://dx.doi.org/10.1080/15533170701674892.

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2

FERRAND, B., I. CHARTIER, C. COATANTIEC та ін. "GROWTH OF β BaB2O4 SINGLE GRYSTALS AND SHG EFFICIENCY MEASUREMENTS". Le Journal de Physique IV 01, № C7 (1991): C7–753—C7–756. http://dx.doi.org/10.1051/jp4:19917202.

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3

Lin, Xianqing, Yingying Liu, Kang Wang, et al. "Hybrid Three-Dimensional Spiral WSe2 Plasmonic Structures for Highly Efficient Second-Order Nonlinear Parametric Processes." Research 2018 (December 9, 2018): 1–8. http://dx.doi.org/10.1155/2018/4164029.

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Two-dimensional (2D) layered materials, with large second-order nonlinear susceptibility, are currently growing as an ideal candidate for fulfilling tunable nanoscale coherent light through the second-order nonlinear optical parametric processes. However, the atomic thickness of 2D layered materials leads to poor field confinement and weak light-matter interaction at nanoscale, resulting in low nonlinear conversion efficiency. Here, hybrid three-dimensional (3D) spiral WSe2 plasmonic structures are fabricated for highly efficient second harmonic generation (SHG) and sum-frequency generation (S

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4

Kong, Fang, and Jiang-Gao Mao. "Recent progress in selenite and tellurite based SHG materials." Dalton Transactions 49, no. 25 (2020): 8433–37. http://dx.doi.org/10.1039/d0dt01429j.

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5

Wang Hao, 王昊, 罗旭 Luo Xu, 惠勇凌 Hui Yongling, 姜梦华 Jiang Menghua, 雷訇 Lei Hong, and 李强 Li Qiang. "Theoretical Investigation on Quasi-Phase-Matched SHG Efficiency Effects of CO2Laser." Applied laser 34, no. 2 (2014): 142–48. http://dx.doi.org/10.3788/al20143402.0142.

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6

OHMURA, Etsuji, Kazufumi NOMURA, and Isamu MIYAMOTO. "Influence of Laser Absorption by Nonlinear Optical Crystal on SHG Efficiency." Journal of the Japan Society for Precision Engineering 69, no. 2 (2003): 252–57. http://dx.doi.org/10.2493/jjspe.69.252.

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7

NOMURA, Kazufumi, Etsuji OHMURA, and Isamu MIYAMOTO. "Theoretical Analysis of SHG Conversion Efficiency Due to Gaussian Beam Irradiation." Journal of the Japan Society for Precision Engineering 69, no. 3 (2003): 390–95. http://dx.doi.org/10.2493/jjspe.69.390.

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8

Soltanmohammadi, J., K. Jamshidi-Ghaleh, and H. Masalehdan. "Effect of Linear Absorption on Efficiency of SHG in Layered Structure." Acta Physica Polonica A 123, no. 2 (2013): 401–3. http://dx.doi.org/10.12693/aphyspola.123.401.

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9

Lv, Xinlin, Junchi Chen, Yujie Peng, et al. "Discretely Tunable Multiwavelength Visible Laser Based on Cascaded Frequency Conversion Processes." Applied Sciences 10, no. 23 (2020): 8608. http://dx.doi.org/10.3390/app10238608.

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We demonstrate a discretely tunable multiwavelength visible laser through second harmonic generation (SHG) and sum frequency generation (SFG) of multiorder Stokes lasers generated from an external Raman laser oscillator. The Raman laser oscillator, driven by a 1064 nm laser with an energy of 120 mJ, is based on a cascade of Ba(NO3)2 and two axial orthogonal KGd(WO4)2 crystals. Through adjusting the angle of the SHG/SFG crystal, we obtain 16 visible wavelengths with a wide range from 579.5–658.4 nm. In addition, we investigate the output energy and conversion efficiency of the resulting laser w

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10

Bhagavannarayana, G., and S. K. Kushwaha. "Enhancement of SHG efficiency by urea doping in ZTS single crystals and its correlation with crystalline perfection as revealed by Kurtz powder and high-resolution X-ray diffraction methods." Journal of Applied Crystallography 43, no. 1 (2010): 154–62. http://dx.doi.org/10.1107/s0021889809050560.

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The enhancement of second-harmonic generation (SHG) efficiency by urea doping in tristhioureazinc(II) sulfate (ZTS) single crystals and its correlation with crystalline perfection have been investigated. ZTS is a potential semiorganic nonlinear optical material. Pure and urea-doped single crystals of ZTS have been successfully grown by the slow evaporation solution technique. The presence of dopant has been confirmed and analysed by Fourier transform infrared spectrometry. The influence of urea doping at different concentrations on crystalline perfection has been thoroughly assessed by high-re

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11

NEMATI, MAJID. "THE DISORDERING EFFECT ON THE ONE-DIMENSIONAL APPERIODIC OPTICAL SUPER-LATTICE IN MULTI-FREQUENCY SHG." International Journal of Modern Physics: Conference Series 15 (January 2012): 191–96. http://dx.doi.org/10.1142/s2010194512007143.

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A multi-frequency second harmonic generation (SHG) in one dimensional nonlinear aperiodic optical superlattice in the presence of linear spacers is considered. The effect of random fluctuations in the length of each layer on the output efficiency of SHG process is investigated, and the favorable percentage of fluctuation in the fabrication of aperiodic optical superlattice is obtained. Comparing perfect and fluctuated aperiodic structures, the researcher realized the decrease in the amount of output efficiency with the increase of fluctuation in the linear-nonlinear aperiodic crystals.

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12

Macrae, J. C., J. S. Smith, P. J. S. Dewey, A. C. Brewer, D. S. Brown, and A. Walker. "The efficiency of utilization of metabolizable energy and apparent absorption of amino acids in sheep given spring- and autumn-harvested dried grass." British Journal of Nutrition 54, no. 1 (1985): 197–209. http://dx.doi.org/10.1079/bjn19850105.

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1. Three experiments were conducted with sheep given spring-harvested dried grass (SHG) and autumn-harvested dried grass (AHG). The first was a calorimetric trial to determine the metabolizable energy (ME) content of each grass and the efficiency with which sheep utilize their extra ME intakes above the maintenance level of intake. The second examined the relative amounts of extra non-ammonia-nitrogen (NAN) and individual amino acids absorbed from the small intestine per unit extra ME intake as the level of feeding was raised from energy equilibrium (M) to approximately 1.5 M. The third was a

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13

Xie Xu-Dong, Zhu Qi-Hua, Zhang Qiu-Hui, Feng Guo-Ying, Han Jing-Hua, and Li Bin-Hou. "The evolution law of KTP SHG conversion efficiency in special repetition rate." Acta Physica Sinica 59, no. 8 (2010): 5533. http://dx.doi.org/10.7498/aps.59.5533.

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14

Wang Hao, 王昊, 罗旭 Luo Xu, 惠勇凌 Hui Yongling, 姜梦华 Jiang Menghua, 雷訇 Lei Hong, and 李强 Li Qiang. "Theoretical Investigation on Quasi-Phase-Matched SHG Efficiency Effects of CO2 Laser." APPLIED LASER 34, no. 2 (2014): 142–48. http://dx.doi.org/10.3788/al20143402.142.

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15

Kotačka, L., J. Čtyroký, and H. J. W. M. Hoekstra. "Čerenkov Waveguide SHG: a Less Critical Way to Reach the Efficiency Peak." Acta Physica Polonica A 99, no. 1 (2001): 135–46. http://dx.doi.org/10.12693/aphyspola.99.135.

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16

Puntus, Lada N., Elena V. Sergeeva, Dmitrii Yu Antonov, et al. "The correlation between SHG efficiency and structural peculiarities of [2.2]paracyclophane derivatives." Molecular Crystals and Liquid Crystals 655, no. 1 (2017): 16–34. http://dx.doi.org/10.1080/15421406.2017.1361308.

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17

Kostenyukova, E. I. "Optical, thermal, strength properties and SHG efficiency of KDP single crystals doped with N,N′-dimethyl urea." Functional materials 25, no. 1 (2018): 034–42. http://dx.doi.org/10.15407/fm25.01.034.

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18

FUJIMOTO, TETSUROU, TSUNEAKI WASEGURI, SADAO TSUTSUMI, and MASAYUKI TSUKIOKA. "SHG CHARACTERISTIC OF Co-DOPED LiNbO3 SINGLE CRYSTAL." Modern Physics Letters B 08, no. 13 (1994): 799–810. http://dx.doi.org/10.1142/s0217984994000807.

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In order to investigate the doping effect of LiNbO 3 by cobalt ion, LiNbO 3 single crystals doped with CoO, 0.02, 0.05, 0.2, and 1 mol% were synthesized. SHG characteristics were measured using CW YAG:Nd laser in the temperature range from 120 to 310 K. Optical absorption measurements were carried out in the wavelength between 300 and 1800 nm in the y direction. The largest conversion efficiency of SHG was observed in the 0.02 mol% doped crystal, which is due to harmonic effect. Microscopic observation of domain structure was also carried out. It is found that the domain layers of positive and

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19

Nalla, Venkatram, Raghavender Medishetty, Yue Wang, et al. "Second harmonic generation from the `centrosymmetric' crystals." IUCrJ 2, no. 3 (2015): 317–21. http://dx.doi.org/10.1107/s2052252515002183.

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Second harmonic generation (SHG) is a well known non-linear optical phenomena which can be observed only in non-centrosymmetric crystals due to non-zero hyperpolarizability. In the current work we observed SHG from a Zn(II) complex which was originally thought to have crystallized in the centrosymmetric space groupC2/c. This has been attributed to the unequal antiparallel packing of the metal complexes in the non-symmetric space groupCcor residual non-centrosymmetry inC2/cgiving rise to polarizability leading to strong SHG. The enhancement of SHG by UV light has been attributed to the increase

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20

Bao, Gang, Zhengfu Xu, and Jianhua Yuan. "Continuation Finite Element Simulation of Second Harmonic Generation in Photonic Crystals." Communications in Computational Physics 10, no. 1 (2011): 57–69. http://dx.doi.org/10.4208/cicp.150710.290910a.

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AbstractA computational study on the enhancement of the second harmonic generation (SHG) in one-dimensional (1D) photonic crystals is presented. The mathematical model is derived from a nonlinear system of Maxwell’s equations, which partly overcomes the shortcoming of some existing models based on the undepleted pump approximation. We designed an iterative scheme coupled with the finite element method which can be applied to simulate the SHG in one dimensional nonlinear photonic band gap structures in our previous work. For the case that the nonlinearity is strong which is desirable to enhance

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21

Natarajan, S., K. Moovendaran, J. Kalyana Sundar, G. Bhagavannarayana, and S. A. Martin Britto Dhas. "Influence of Picric Acid on the SHG Efficiency of L-Prolinium Tartrate Crystals." Journal of Minerals and Materials Characterization and Engineering 10, no. 10 (2011): 913–21. http://dx.doi.org/10.4236/jmmce.2011.1010071.

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22

Fujimura, M., M. Sudoh, K. Kintaka, T. Suhara, and H. Nishihara. "Enhancement of SHG efficiency in periodically poled LiNbO3 waveguide utilising a resonance effect." Electronics Letters 32, no. 14 (1996): 1283. http://dx.doi.org/10.1049/el:19960880.

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23

NOMURA, Kazufumi, Etuji OHMURA, and Isamu MIYAMOTO. "Theoretical Analysis on SHG Conversion Efficiency during Gaussian Beam Irradiation and Temperature Control." Proceedings of The Manufacturing & Machine Tool Conference 2002.4 (2002): 223–24. http://dx.doi.org/10.1299/jsmemmt.2002.4.223.

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24

Parikh, K. D., D. J. Dave, B. B. Parekh, and M. J. Joshi. "Thermal, FT-IR and SHG efficiency studies of L-arginine doped KDP crystals." Bulletin of Materials Science 30, no. 2 (2007): 105–12. http://dx.doi.org/10.1007/s12034-007-0019-4.

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25

Antonucci, D., D. de Ceglia, A. D’Orazio, et al. "Enhancement of the SHG efficiency in a doubly resonant 2D-photonic crystal microcavity." Optical and Quantum Electronics 39, no. 4-6 (2007): 353–60. http://dx.doi.org/10.1007/s11082-007-9086-4.

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26

Wang, Yanlong, Yuxiang Li, Zhuanling Bai, et al. "Design and synthesis of a chiral uranium-based microporous metal organic framework with high SHG efficiency and sequestration potential for low-valent actinides." Dalton Transactions 44, no. 43 (2015): 18810–14. http://dx.doi.org/10.1039/c5dt02337h.

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27

ZHAO, LI-MING, BEN-YUAN GU, and GUO-ZHEN YANG. "ENHANCEMENT OF SECOND HARMONIC GENERATION IN ONE-DIMENSIONAL FERROELECTRIC-METALLIC PHOTONIC CRYSTALS." Modern Physics Letters B 21, no. 24 (2007): 1599–604. http://dx.doi.org/10.1142/s0217984907013985.

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We investigate second harmonic generation (SHG) in one-dimensional (1D) ferroelectric-metallic photonic crystals (PCs) which are composed of alternatively inverting poled ferroelectric domains with metallic insert layers. We observe a giant enhancement of SHG conversion efficiency due to high reflectivity of metallic layers, which form resonant cavities and lead to substantial increase of fundamental wave (FW) field in nonlinear medium layers.

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28

Mohite, Sagar Subhash, Aditya Babasaheb Patil-Deshmukh, and Sanjay Shamrao Chavan. "Synthesis, Crystal Structure, Luminescence, and Nonlinear Optical Properties of 2-[(E)-[[4-[2-(4-Methoxyphenyl)ethynyl]phenyl] imino]methyl]-4- [(E)-phenyldiazenyl]phenol." Letters in Organic Chemistry 17, no. 8 (2020): 618–23. http://dx.doi.org/10.2174/1570178617666200207104157.

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2-((E)-((4-((4-methoxyphenyl)ethynyl)phenyl)imino)methyl-4-((E)phenyldiazenyl)phenol (1) have been synthesized and characterized. X-ray single crystal diffraction study of the compound 1 reveal a monoclinic structure. Room temperature luminescence is observed for 1 in CH2Cl2 solution due to π* → π transition. The SHG efficiency by Kurtz powder technique indicating the compound 1 displayed the second harmonic generation (SHG) property.

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29

Kostenyukova, E. I. "Microhardness, laser damage threshold and SHG efficiency studies of potassium dihydrogen phosphate crystals doped with L-arginine amino acid." Functional materials 23, no. 1 (2016): 27–31. http://dx.doi.org/10.15407/fm23.01.027.

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30

Silambarasan, A., P. Rajesh, Rajeev Bhatt, et al. "Investigation on the structural, linear/nonlinear optical and electrical characteristics of Cd- and Mn-doped polar lithium sulfate monohydrate crystals." New J. Chem. 41, no. 20 (2017): 12259–67. http://dx.doi.org/10.1039/c7nj02424j.

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31

Li, Ranran, Hongwei Qi, Yanqing Liu та ін. "Widely Tunable Angular Non-Critical Phase-Matching Wavelengths from 0.72 to 1.42 μm Based on RE1xRE21−xCOB Mixed Crystals". Crystals 10, № 9 (2020): 744. http://dx.doi.org/10.3390/cryst10090744.

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The angular non-critical phase-matching (A-NCPM) second-harmonic-generation (SHG) properties of RE1xRE21−xCOB (RE1, RE2 = Y, Gd, La, Tm, Sm, and Nd) type mixed crystals including NCPM wavelength and conversion efficiency were detailedly investigated. Theoretical calculations manifest that the A-NCPM SHG scope of these crystals is 0.72~1.42 µm, and in experiments, the A-NCPM SHG waveband of 0.72~1.25 µm has been realized, by changing the ratio of the rare-earth elements RE1 and RE2 in RE1xRE21−xCOB crystals. Comparing to the temperature-dependent A-NCPM SHG of 0.95~1.34 µm in LiB3O5 (LBO) cryst

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32

Limburg, Karina, Katharina Radziej, Heribert Sattel, et al. "A Randomized Controlled Trial Evaluating Integrative Psychotherapeutic Group Treatment Compared to Self-Help Groups in Functional Vertigo/Dizziness." Journal of Clinical Medicine 10, no. 10 (2021): 2215. http://dx.doi.org/10.3390/jcm10102215.

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We tested the efficacy of an integrative psychotherapeutic group treatment (IPGT) in reducing vertigo/dizziness-related impairment along with depression, anxiety, and somatization by conducting a randomized controlled superiority trial comparing IPGT to self-help groups moderated by a clinical psychologist (SHG). Adult patients with functional vertigo and dizziness symptoms were randomly allocated to either the IPGT or SHG as active control group. Outcomes were assessed at baseline (t0), after treatment lasting 16 weeks (t1), and 12 months after treatment (t2). A total of 81 patients were assi

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33

Liu, Zheng Quan. "Measurement and Test Facility for Solar Heat Gain of Building-Integrated Photovoltaics (BIPV) Modules." Advanced Materials Research 230-232 (May 2011): 64–68. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.64.

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For achieving the maximum energy efficiency of Building-integrated Photovoltaics (BIPV) buildings, the Solar Heat Gain (SHG) through the BIPV modules should be measured accurately. A solar calorimetry hot box was designed to test the SHG through the BIPV modules in this paper, which could measure the incoming solar and long-wave radiation various BIPV module configurations. Combined with the electric energy production, a new concept of ratio of solar heat gain to power energy generation efficiency was presented in this paper, which can be characterized as the design indicator of BIPV module’s

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34

Girija, P., S. Parthiban, and S. C. Mojumdar. "Influence of picric acid on SHG efficiency of tris (thiourea) zinc(II) sulphate (ZTS)." Journal of Thermal Analysis and Calorimetry 119, no. 2 (2014): 953–58. http://dx.doi.org/10.1007/s10973-014-4238-9.

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35

ZHAO, LI-MING, BEN-YUAN GU, GUO-ZHEN YANG, and YUN-SONG ZHOU. "OPTIMAL DESIGN OF APERIODIC OPTICAL SUPERLATTICES FOR ACHIEVING PARAMETRIC AMPLIFICATION OR SECOND HARMONIC GENERATION WITH CONSIDERATION OF THE DEPLETION OF PUMPING LIGHT POWER." Journal of Nonlinear Optical Physics & Materials 14, no. 01 (2005): 115–31. http://dx.doi.org/10.1142/s0218863505002542.

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The parametric amplification (PA) and second harmonic generation (SHG) from quasi-one-dimensional aperiodic optical superlattices (AOSs) are investigated in the cases of large, intermediate, and small signals of the pumping light wave. The optimal design of the AOSs is carried out with the use of the simulated annealing (SA) method. The numerical simulations show that the constructed AOSs can achieve multiple wavelength PA (or SHG) with identical amplification (or identical conversion efficiency) at the pre-assigned wavelengths. The variations of the normalized intensities of the PA signal (or

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36

Cheng, Wen Dan, Chen Sheng Lin, Zhong Zhen Luo, and Yi Yang. "Study on Nonlinear Optical Properties of BSS Material." Advanced Materials Research 747 (August 2013): 497–500. http://dx.doi.org/10.4028/www.scientific.net/amr.747.497.

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The calculated results based on the density functional theory are employed to simulate the nonlinear optical properties of a new compound of Ba7Sn5S15 (BSS). The frequency (ω=eV/ħ) dependent SHG tensor components of the BSS are calculated from 0.0 to 2.0 eV energy range. The calculated components d31(20.3 pm/V) and d33(18.8 pm/V) are close to the experimental value of of 19.5 pm/V at a wavelength of 2.10 μm. The SHG conversion efficiency and the figure of merit of BSS material are about two fold as compared with those of AgGaS2 material. The charge transfers within the (Sn2S3) and (SnS4) polyh

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37

Geng, Lei, Qiang Li, Chang-Yu Meng, et al. "BaBi(SeO3)2Cl: a new polar material showing high second-harmonic generation efficiency enhanced by constructive alignment of chloride ions." Journal of Materials Chemistry C 3, no. 47 (2015): 12290–96. http://dx.doi.org/10.1039/c5tc02925b.

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38

Deng, Yuandan, Xuehua Dong, Meng Yang, Hongmei Zeng, Guohong Zou, and Zhien Lin. "Two low-dimensional metal halides: ionothermal synthesis, photoluminescence, and nonlinear optical properties." Dalton Transactions 48, no. 47 (2019): 17451–55. http://dx.doi.org/10.1039/c9dt04102h.

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39

Li, Ziqing, Pengfei Zhu, Yang Chen, et al. "Single crystal structure and optical properties of nonlinear optical crystal Rb0.94Ti0.94Ta0.06OPO4." CrystEngComm 21, no. 10 (2019): 1570–78. http://dx.doi.org/10.1039/c8ce01724g.

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40

ZHAO, LI-MING, YUN-SONG ZHOU, and JING ZHAO. "TUNABLE OUTPUT OF SECOND HARMONIC GENERATIONS IN PHOTONIC QUANTUM WELL STRUCTURES MADE OF NONLINEAR MATERIAL." International Journal of Modern Physics B 26, no. 31 (2012): 1250178. http://dx.doi.org/10.1142/s0217979212501780.

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We have studied multiple wavelength second harmonic generation (SHG) in one-dimensional multiple photonic quantum-wells (PQWs) structure made of linear and nonlinear material. The numerical simulations show that the devised sample can achieve simultaneously multiple wavelength SHG with nearly identical conversion efficiency by the modulation of both the linear and nonlinear optical coefficient. The fundamental wave frequencies are aimed at the defect states by modulating the linear optical coefficient. The optimal arrangement of the polarization directions of the ferroelectric domains in multi

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41

Irudaya Jothi, A., and V. Alexander. "Organic NLO material with H-bonded 1D helical self-assembly: synthesis, X-ray crystal structure, DFT calculations, SHG measurements and thermal studies of (5Z,6E)-1,10-phenanthroline-5,6-dione dioxime." CrystEngComm 19, no. 35 (2017): 5251–58. http://dx.doi.org/10.1039/c7ce00743d.

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42

Han, Yun-Hu, Yue-Cheng Liu, Xiu-Shuang Xing, Chong-Bin Tian, Ping Lin, and Shao-Wu Du. "Chiral template induced homochiral MOFs built from achiral components: SHG enhancement and enantioselective sensing of chiral alkamines by ion-exchange." Chemical Communications 51, no. 77 (2015): 14481–84. http://dx.doi.org/10.1039/c5cc05566k.

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A homochiral anionic framework built from achiral components was synthesized for enantioselective sensing of chiral alkamines. Ion-exchange with polar or chiral organic cations leads to the enhancement of the SHG efficiency.

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43

Zhao, Li-Ming, Yun-Song Zhou, and Ai-Hua Wang. "Effect of field modulation on the quasi-phase-matching for second harmonic generation in a two-dimensional nonlinear photonic crystal." International Journal of Modern Physics B 31, no. 05 (2017): 1750025. http://dx.doi.org/10.1142/s0217979217500254.

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Second harmonic generation (SHG) in a two-dimensional (2D) nonlinear photonic crystal (NPC) with finite width along [Formula: see text]-direction that is embedded in air is investigated, without adopting the traditional approximations such as a plane-wave approximation (PWA) and slowly varying amplitude approximation (SVAA). The so-called quasi-phase-matching (QPM) and the corresponding SHG conversion efficiency can be modulated significantly by the field of fundamental wave (FW). It is assumed that the incident light, along [Formula: see text]-direction, is normally launched upon the surface

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44

Han, Aoxue, Colm Dineen, Viktoriia E. Babicheva, and Jerome V. Moloney. "Second harmonic generation in metasurfaces with multipole resonant coupling." Nanophotonics 9, no. 11 (2020): 3545–56. http://dx.doi.org/10.1515/nanoph-2020-0193.

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AbstractWe report on the numerical demonstration of enhanced second harmonic generation (SHG) originating from collective resonances in plasmonic nanoparticle arrays. The nonlinear optical response of the metal nanoparticles is modeled by employing a hydrodynamic nonlinear Drude model implemented into Finite-Difference Time-Domain (FDTD) simulations, and effective polarizabilities of nanoparticle multipoles in the lattice are analytically calculated at the fundamental wavelength by using a coupled dipole–quadrupole approximation. Excitation of narrow collective resonances in nanoparticle array

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45

Cong, Rihong, Ying Wang, Lei Kang, Zhengyang Zhou, Zheshuai Lin, and Tao Yang. "An outstanding second-harmonic generation material BiB2O4F: exploiting the electron-withdrawing ability of fluorine." Inorganic Chemistry Frontiers 2, no. 2 (2015): 170–76. http://dx.doi.org/10.1039/c4qi00192c.

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46

Chen, Xinglong, Fangfang Zhang, Lili Liu, et al. "Li3AlSiO5: the first aluminosilicate as a potential deep-ultraviolet nonlinear optical crystal with the quaternary diamond-like structure." Physical Chemistry Chemical Physics 18, no. 6 (2016): 4362–69. http://dx.doi.org/10.1039/c5cp06884c.

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47

MORALES-SAAVEDRA, OMAR G., ANTAL JÁKLI, GERD HEPPKE, and HANS J. EICHLER. "POLAR MICRO STRUCTURES OF THE B2- AND B4-PHASES OF BENT-SHAPED LC-MOLECULES RESOLVED BY NONLINEAR OPTICAL MICROSCOPY." Journal of Nonlinear Optical Physics & Materials 15, no. 02 (2006): 287–302. http://dx.doi.org/10.1142/s0218863506003293.

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A nonlinear optical (NLO) microscope has been developed based on recording the second harmonic generation (SHG) signals of the B 2- and B 4-phases of bent shaped liquid crystalline (LC) materials. We observed that the microstructures of the polar order can be accurately characterized by 2D scanned images implementing this device. Specifically, we have investigated two bent-core compounds, which have either B 4 or B 2 phases at room temperature and exhibit SHG activity. The NLO microscope was calibrated according to the Maker-fringes method allowing the in situ evaluation of the relative SHG ef

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48

MORALES-SAAVEDRA, OMAR G., JÁKLI ANTAL, HEPPKE GERD, and EICHLER HANS J. "POLAR ORDERING IN THERMOTROPIC MESOGENS RESOLVED BY SCANNING NLO MICROSCOPY." Journal of Nonlinear Optical Physics & Materials 15, no. 04 (2006): 431–46. http://dx.doi.org/10.1142/s0218863506003396.

Full text

Abstract:

A nonlinear optical (NLO) microscope has been developed based on recording the second harmonic generation (SHG) signals of the B 2- and B 4-phases of bent-shaped liquid crystalline (LC) materials. We observed that the microstructures of the polar order can be accurately characterized by 2D scanned images implementing this device. Specifically, we have investigated two bent-core compounds, which have either B 4 or B 2 phases at room temperature and exhibit SHG activity. The NLO microscope was calibrated according to the Maker fringe method allowing the in situ evaluation of the relative SHG eff

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49

Anbulakshmi, C., P. Selvarajan, and S. Selvaraj. "Growth, XRD, Mechanical, Optical and SHG Studies of L-Lysine L-Tartaric Acid Crystals." Asian Journal of Engineering and Applied Technology 8, no. 2 (2019): 57–62. http://dx.doi.org/10.51983/ajeat-2019.8.2.1137.

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Single crystals of L-lysine L-tartaric acid (LLLT) were grown by solution method using double distilled water as the solvent. The grown crystals LLLT were subjected to characterization studies like XRD studies, mechanical studies, optical studies and SHG studies. From XRD studies, it is ascertained that LLLT crystal crystallizes in monoclinic structure. The grown crystal has high transmittance in the visible region and it has high optical band gap. The mechanical parameters like hardness, work hardening coefficient, yield strength, stiffness constant, brittleness index, corrected hardness and

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Kumari, R. Ananda. "Optical and SHG Measurements of Aminoacids doped ADP NLO crystals." MRS Advances 5, no. 37-38 (2020): 1955–63. http://dx.doi.org/10.1557/adv.2020.265.

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Abstract:

ABSTRACTL-Arginine and L-Alanine aminoacids doped ADP crystals were grown from aqueous solution by slow evaporation technique at constant temperature. The crystalline nature of the grown crystals was confirmed using powder X-ray diffraction technique. The vibrational frequencies of the grown crystals were identified using FTIR spectral analysis. Optical absorption study was carried out and a good transparency in the entire visible region was observed with the lower cutoff wavelength of 308 nm and 318 nm for the L-Alanine & L-Arginine doped crystals respectively. The transmission data has b

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