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The Study of the Optical Nonlinear Properties of Bulk ZnSe for Immersion Applications 用于浸入式应用的块状硒化锌的光学非线性特性研究
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23100235
N. A. Smirnov, A. E. Rupasov, S. N. Shelygina, A. O. Levchenko, M. S. Savinov, S. I. Kudryashov
{"title":"The Study of the Optical Nonlinear Properties of Bulk ZnSe for Immersion Applications","authors":"N. A. Smirnov,&nbsp;A. E. Rupasov,&nbsp;S. N. Shelygina,&nbsp;A. O. Levchenko,&nbsp;M. S. Savinov,&nbsp;S. I. Kudryashov","doi":"10.1134/S0030400X23100235","DOIUrl":"10.1134/S0030400X23100235","url":null,"abstract":"<p>In this work, we study the nonlinear absorption of ultrashort laser pulses of variable duration (0.3‒10 ps) in a bulk polycrystalline ZnSe dielectric. The transmission of the sample was measured for two wavelengths, 515 and 1030 nm, in a wide range of intensities. A nonlinear behavior of the transmission is found when the sample is irradiated with laser radiation at a wavelength of 515 nm with absorption saturation in the region of 3–5 TW/cm<sup>2</sup>. Surface damage thresholds were obtained for a wavelength of 1030 nm for pulse durations of 0.3–10 ps.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 10","pages":"1093 - 1097"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140562037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Role of LMCT States in Luminescence Excitation Processes in Europium Indolecarboxylates LMCT 状态在铕吲哚羧酸盐发光激发过程中的作用
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23100259
V. I. Tsaryuk, K. P. Zhuravlev
{"title":"Role of LMCT States in Luminescence Excitation Processes in Europium Indolecarboxylates","authors":"V. I. Tsaryuk,&nbsp;K. P. Zhuravlev","doi":"10.1134/S0030400X23100259","DOIUrl":"10.1134/S0030400X23100259","url":null,"abstract":"<p>The luminescence excitation energy transfer in europium and terbium indole-3-carboxylates, indole-3-acetates and indole-3-propionates as well as ternary indolecarboxylates containing 1,10-phenanthroline and 2,2'-bipyridine molecules have been studied. The luminescence excitation spectra, the lifetimes of the <sup>5</sup><i>D</i><sub>0</sub> (Eu<sup>3+</sup>) and <sup>5</sup><i>D</i><sub>4</sub> (Tb<sup>3+</sup>) states, and the luminescence intensity are analyzed. The decisive role of ligand-metal charge transfer (LMCT) states in the quenching of the luminescence of europium aromatic carboxylates containing a π-excessive pyrrole or indole fragment is demonstrated. Most europium compounds are characterized by quenching due to the depopulation of the <sup>5</sup><i>D</i><sub>0</sub> state of the Eu<sup>3+</sup> ion through the low-energy LMCT state. But in some ternary compounds, the LMCT state being of higher energy participates in the nonradiative depopulation of the excited electronic states of the ligand.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 10","pages":"1103 - 1111"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140562369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reactivity of Stress-Implementing System under Conditions of Light Regime Change in Experiment 实验中光照变化条件下应力实施系统的反应能力
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23060206
O. V. Zlobina, S. S. Pahomiy, I. O. Bugaeva, A. N. Ivanov, A. O. Moskvina, E. M. Kostromina
{"title":"Reactivity of Stress-Implementing System under Conditions of Light Regime Change in Experiment","authors":"O. V. Zlobina,&nbsp;S. S. Pahomiy,&nbsp;I. O. Bugaeva,&nbsp;A. N. Ivanov,&nbsp;A. O. Moskvina,&nbsp;E. M. Kostromina","doi":"10.1134/S0030400X23060206","DOIUrl":"10.1134/S0030400X23060206","url":null,"abstract":"<p>Influence of light exposure duration (model 18 : 6) on hormonal indices of stress-implementing system in laboratory animals blood is studied. Activity of stress systems central link was evaluated based on data on concentration of adrenocorticotrophic hormone, melatonin and β-endorphin in blood serum, observed during enzyme immunoassay. Reaction of peripheric link of the stress-implementing system was evaluated in blood smears based on results of qualitative count of catecholamine granules in erythrocytes. It was established, that variations of hormonal indices of the stress systems for laboratory animals depend on trigger factor activity periods. With increase of the experiment duration to 21st days the most pronounced reduction of melatonin, β-endorphin and increase of adrenocorticotrophic hormone concentration, as well as sharp increase of catecholamines level are observed in the blood serum. These hormonal changes develop as a result of failure of compensation mechanisms of the stress-implementing systems in connection with melatonin rhythms disturbance, that indicates the gradual development of the general adaptation syndrome.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 8","pages":"781 - 784"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-NA Focusing of Ultrashort Laser Pulses in Bulk of ZnSe 在 ZnSe 块体中对超短激光脉冲进行高纳聚焦
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23100077
Yu. S. Gulina, S. I. Kudryashov, N. A. Smirnov, E. V. Kuzmin
{"title":"High-NA Focusing of Ultrashort Laser Pulses in Bulk of ZnSe","authors":"Yu. S. Gulina,&nbsp;S. I. Kudryashov,&nbsp;N. A. Smirnov,&nbsp;E. V. Kuzmin","doi":"10.1134/S0030400X23100077","DOIUrl":"10.1134/S0030400X23100077","url":null,"abstract":"<p>A study of high-NA focusing process of ultrashort laser pulses in bulk of ZnSe has been carried out. It is shown that when focusing laser Gaussian beam with high-aperture lenses into a transparent medium aberration distortions occur leading to an increase in focal spot size. The results of experimental studies on ablation of front and back surfaces of a plane-parallel plate with 4 mm thickness made of ZnSe by laser pulses with a duration of 0.3, 1, 10 ps and a wavelength of 1030 nm focused by a micro lens (<i>NA</i> = 0.55) are presented. It is shown that at low pulse energies focusing can be considered in a linear mode in which focal spot size is due to aberration distortions.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 10","pages":"980 - 985"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140561809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pulsed RF Excitation Inductive Discharge CO2 Laser with the Radiation Energy of 1 J and High Efficiency 辐射能量为 1 J 的高效脉冲射频激励感应放电 CO2 激光器
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X2310020X
A. M. Razhev, E. S. Kargapol’tsev, I. A. Trunov
{"title":"Pulsed RF Excitation Inductive Discharge CO2 Laser with the Radiation Energy of 1 J and High Efficiency","authors":"A. M. Razhev,&nbsp;E. S. Kargapol’tsev,&nbsp;I. A. Trunov","doi":"10.1134/S0030400X2310020X","DOIUrl":"10.1134/S0030400X2310020X","url":null,"abstract":"<p>An efficient pulsed gas-discharge inductive CO<sub>2</sub>-laser with a radiation energy of 1.05 J has been developed for the first time. In this case, the pulse duration of the laser radiation was about 10 ms. The maximum efficiency of 21.1% was obtained at a radiation energy of 340 mJ. HF current pulses propagated along the inductor conductor and, thus, an inductive discharge was formed to create a population inversion at the infrared (IR) transitions of CO<span>(_{2}^{*})</span> molecules. The temporal and energy characteristics of the radiation of the inductive CO<sub>2</sub>-laser depending on the duration of the pump pulse are investigated. The spatial characteristics and spectrum of the radiation of the developed laser are estimated. The divergence of the laser radiation was 0.52 mrad. The cross-sectional dimension of the laser output beam was about 35 mm in diameter.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 10","pages":"1075 - 1081"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140561811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spectral-Luminescence Properties of ZrO2–Sc2O3–Tb2O3 Crystals ZrO2-Sc2O3-Tb2O3 晶体的光谱-发光特性
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23100016
S. Kh. Batygov, M. A. Borik, A. V. Kulebyakin, N. A. Larina, E. E. Lomonova, V. A. Myzina, P. A. Ryabochkina, N. V. Sidorova, A. D. Taratynova, N. Yu. Tabachkova
{"title":"Spectral-Luminescence Properties of ZrO2–Sc2O3–Tb2O3 Crystals","authors":"S. Kh. Batygov,&nbsp;M. A. Borik,&nbsp;A. V. Kulebyakin,&nbsp;N. A. Larina,&nbsp;E. E. Lomonova,&nbsp;V. A. Myzina,&nbsp;P. A. Ryabochkina,&nbsp;N. V. Sidorova,&nbsp;A. D. Taratynova,&nbsp;N. Yu. Tabachkova","doi":"10.1134/S0030400X23100016","DOIUrl":"10.1134/S0030400X23100016","url":null,"abstract":"<p>Crystals of the concentration series ZrO<sub>2</sub>–(8–10) mol % Sc<sub>2</sub>O<sub>3</sub>–(1–2) mol % Tb<sub>2</sub>O<sub>3</sub> were grown by the method of directional crystallization of the melt from a cold container. Analysis of the spectral-luminescence characteristics of these crystals after growth and after annealing processing in a vacuum revealed the presence of both Tb<sup>3+</sup> and Tb<sup>4+</sup> ions in them. In crystals ZrO<sub>2</sub>–(8–10) mol % Sc<sub>2</sub>O<sub>3</sub>–(1–2) mol % Tb<sub>2</sub>O<sub>3</sub>, the presence of a process of non-radiative energy transfer from Tb<sup>4+</sup> ions to Tb<sup>3+</sup> ions was revealed.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 10","pages":"931 - 937"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140561886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of the Relativistic Electron Localization Function to Study the Electronic Structure of Superheavy Elements 应用相对论电子定位函数研究超重元素的电子结构
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23070172
I. I. Tupitsyn, M. Y. Kaygorodov, D. A. Glazov, A. M. Ryzhkov, D. P. Usov, V. M. Shabaev
{"title":"Application of the Relativistic Electron Localization Function to Study the Electronic Structure of Superheavy Elements","authors":"I. I. Tupitsyn,&nbsp;M. Y. Kaygorodov,&nbsp;D. A. Glazov,&nbsp;A. M. Ryzhkov,&nbsp;D. P. Usov,&nbsp;V. M. Shabaev","doi":"10.1134/S0030400X23070172","DOIUrl":"10.1134/S0030400X23070172","url":null,"abstract":"<p>A formula for calculating the relativistic electron localization function (RELF) within the framework of the Dirac–Fock method is obtained. An approach similar to that used earlier in [A.D. Becke and K.E. Edgecombe, The Journal of Chemical Physics <b>92</b>, 5397 (1990)] in deriving an expression for the nonrelativistic electron localization function (ELF) is applied. It is demonstrated that the expression for RELF differs from the expression for ELF with replacement of the nonrelativistic electron density by its relativistic counterpart. Relativistic calculations of ELF and RELF for a number of superheavy elements are performed and the results are compared. By several examples it is shown that the ELF value equal to 0.5 does not necessarily correspond to the distribution density of homogeneous electron gas.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 9","pages":"920 - 929"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140882859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of the Influence of Chromium and Zinc Ions on the Collagenolysis Process in Solutions by the Method of Dynamic Light Scattering 用动态光散射法评估铬和锌离子对溶液中胶原蛋白溶解过程的影响
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23100181
A. V. Petrova, A. V. Sidorova, I. A. Sergeeva, G. P. Petrova
{"title":"Evaluation of the Influence of Chromium and Zinc Ions on the Collagenolysis Process in Solutions by the Method of Dynamic Light Scattering","authors":"A. V. Petrova,&nbsp;A. V. Sidorova,&nbsp;I. A. Sergeeva,&nbsp;G. P. Petrova","doi":"10.1134/S0030400X23100181","DOIUrl":"10.1134/S0030400X23100181","url":null,"abstract":"<p>Using the method of dynamic light scattering, it was found that the rate of collagen cleavage under the influence of bacterial collagenase decreases by almost 4 times when protein molecules are doped with Cr<sup>3+</sup> ions, and when the enzyme activator of Zn<sup>2+</sup> ions is added, it increases by 1.3 times. Based on the experimental data, the reaction rate constants <i>k</i><sub>1</sub> were calculated. It was found that when collagen molecules are tanned with a chromium salt, it becomes more resistant to degradation in solutions containing zinc ions than in solutions with the addition of calcium ions, as we described in earlier works.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 10","pages":"1063 - 1068"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140882871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deformation Response of Biological Phantoms and Cartilaginous Tissue at Laser Exposure 生物模型和软骨组织在激光照射下的变形响应
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23100119
E. M. Kas’yanenko, A. I. Omel’chenko, O. I. Baum
{"title":"Deformation Response of Biological Phantoms and Cartilaginous Tissue at Laser Exposure","authors":"E. M. Kas’yanenko,&nbsp;A. I. Omel’chenko,&nbsp;O. I. Baum","doi":"10.1134/S0030400X23100119","DOIUrl":"10.1134/S0030400X23100119","url":null,"abstract":"<p>Regeneration of cartilaginous tissue and its shape change at laser exposure can be used as a basis for prospective medical operations, improving patient’s quality of life. The most important criterion of such operations success is a cell survival after laser exposure, therefore reduction of exposure duration and power is an important task at such methods development. Nanoparticles are actively used in medicine, and one of their intended usages is photothermal effect enhancement at laser exposure to biological tissue. However, articular tissue is quite resistant to foreign agents penetration, therefore the study of nanoparticles penetration capability and their impregnation effect is the priority task for achieving the desired medical effect. Optical coherence tomography (OCT) of gel phantoms and cartilaginous tissue of a joint, impregnated with nanoparticles, at laser exposure with erbium fiber laser with length wave of 1.56 μm is performed in this study. Articular cartilaginous tissue sections of three types (intact, with laser damage and after low laser exposure) were impregnated with nanoparticles of Fe<sub>3</sub>O<sub>4</sub> for further study using OCT elastography. Increase of deformations, caused by heating of phantoms and tissue, impregnated with nanoparticles, is observed. OCT elastography data indicate the dependence of tissue deformation on previous tissue exposure history. The work substantiates increase of photothermal impact of laser exposure to tissue deformation at various nanoparticles introduction.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 10","pages":"1000 - 1005"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Nephelauxetic Effect in ZnAl2O4:Cr3+ Nanocrystals Induced By Their Size 尺寸诱导的 ZnAl2O4:Cr3+ 纳米晶体的霞石效应
IF 0.8 4区 物理与天体物理
Optics and Spectroscopy Pub Date : 2024-04-01 DOI: 10.1134/S0030400X23070032
P. J. Dereń, A. Watras, D. Stefańska
{"title":"The Nephelauxetic Effect in ZnAl2O4:Cr3+ Nanocrystals Induced By Their Size","authors":"P. J. Dereń,&nbsp;A. Watras,&nbsp;D. Stefańska","doi":"10.1134/S0030400X23070032","DOIUrl":"10.1134/S0030400X23070032","url":null,"abstract":"<p>ZnAl<sub>2</sub>O<sub>4</sub> nanocrystallites doped with Cr<sup>3+</sup> ions with mean sizes ranging from 2 to 16 nm were synthesized by the hydrothermal method. Chromium ions occupy the aluminum positions, which symmetry depends on the crystallite size. The smallest nanocrystals have a much larger unit cell than the bigger ones. The metal to ligand distance increases when the size of the nanocrystals decreases. This causes the nephelauxetic effect, which is for the first time (to our knowledge) observed as a size effect. It was also observed that ZnAl<sub>2</sub>O<sub>4</sub>:Cr<sup>3+</sup> nanocrystals with size larger than 10 nm possesses the same spectroscopic properties as monocrystal.</p>","PeriodicalId":723,"journal":{"name":"Optics and Spectroscopy","volume":"131 9","pages":"795 - 802"},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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