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Электронное строение и оптические свойства соединений изомеров фуллерена С-=SUB=-90-=/SUB=- с хлором 富勒伦的电子结构和光学特性c -=SUB -90-= - SUB -氯化合物

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.05.55722.4702-22

А. И. Мурзашев, Нина Владимировна Мельникова, А.П. Жуманазаров, М. Ю. Кокурин, С.К. Паймеров

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Изотопический сдвиг ИК полос поглощения монокристаллов германия 德国单晶吸收带同位素位移

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.06.55926.4334-22

Г.И. Кропотов, В.Е. Рогалин, И.А. Каплунов, А.А. Шахмин, Сергей Александрович Филин, А. Д. Буланов

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Влияние дополнительных монопольных выбросов электронов на зарядовые спектры конечных ионов при каскадном распаде электронных вакансий в атоме золота 额外的垄断电子排放对有限离子电荷谱的影响，当黄金原子中的电子空缺级崩溃时。

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.04.55563.4560-22

А.П. Чайников, А. Г. Кочур, А.И. Дуденко, В. А. Явна

{"title":"Влияние дополнительных монопольных выбросов электронов на зарядовые спектры конечных ионов при каскадном распаде электронных вакансий в атоме золота","authors":"А.П. Чайников, А. Г. Кочур, А.И. Дуденко, В. А. Явна","doi":"10.21883/os.2023.04.55563.4560-22","DOIUrl":"https://doi.org/10.21883/os.2023.04.55563.4560-22","url":null,"abstract":"The probabilities of the formation of final ions produced by the cascade decays of vacancies in the K, L, M, N, and O shells of the gold atom are calculated. Simulation of the cascade decays of vacancies is performed by direct construction and analysis of decay trees using branching ratios and transition energies calculated in the Pauli–Fock approximation for multivacancy electron configurations arising in the course of the cascade decay. Accounting for additional monopole ejections of electrons (shake-off) accompanying the cascade transitions leads to a slight increase in the average charges of the final ions, by 0.15–0.23e. The largest relative increase in the calculated average charges of the final ions (by 3.6–3.9%) is observed upon the cascade decay of vacancies in 4p3/2, 4d3/2, and 4d5/2 subshells, and the smallest (by 0.8%) occurs in the decay of 4f-vacancy. Despite insignificant changes in the average ion charges, the structure of the charge spectra in some cases changes noticeably enough when additional electron ejections are taken into account. It is expected that in simulation of the cascade energy reemission processes when heavy atoms are used as radiosensitizers, the effect of accounting for shake-off processes will be insignificant.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"14 7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72666114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Особенности возбуждения частицы в одноуровневой квантовой яме предельно коротким аттосекундным импульсом 单层量子坑中粒子刺激的特征，最小的atto秒脉冲

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.01.54540.4191-22

Ростислав Михайлович Архипов, Михаил Викторович Архипов, П. А. Белов, А. В. Пахомов, Николай Николаевич Розанов

{"title":"Особенности возбуждения частицы в одноуровневой квантовой яме предельно коротким аттосекундным импульсом","authors":"Ростислав Михайлович Архипов, Михаил Викторович Архипов, П. А. Белов, А. В. Пахомов, Николай Николаевич Розанов","doi":"10.21883/os.2023.01.54540.4191-22","DOIUrl":"https://doi.org/10.21883/os.2023.01.54540.4191-22","url":null,"abstract":"Using the solution of the time Schrödinger equation, the features of the excitation of a bound state of a particle in a one-dimensional rectangular quantum well of small depth by an extremely short light pulse are studied. The case of a shallow well with only one energy level is considered. In this case, the system is excited by an attosecond pulse whose duration is shorter than the characteristic time associated with the energy of the bound state of the particle in the well. It is shown that in this case the population of the bound state and the ionization probability are determined by the ratio of the electric area of the pulse to its atomic measure, which is inversely proportional to the well width. The calculation results showed that unipolar subcycle pulses with nonzero electric area can excite the system faster and more efficiently than bipolar pulses with zero area. The possibility of using unipolar gamma-ray pulses of zeptosecond duration for deuteron excitation is discussed, and numerical estimates of the required duration and electric area of the pulse are given.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"102 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78161916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Особенности адсорбции метиленового синего и аскорбиновой кислоты на полимерной мембране "Нафион" 亚甲基蓝和抗坏血酸在纳菲翁聚合物膜上的吸附特性

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.07.56140.3852-23

Николай Федорович Бункин, С. Л. Тимченко, Г. Н. Фадеев, Н А Богатов, Н. А. Задорожный

{"title":"Особенности адсорбции метиленового синего и аскорбиновой кислоты на полимерной мембране \"Нафион\"","authors":"Николай Федорович Бункин, С. Л. Тимченко, Г. Н. Фадеев, Н А Богатов, Н. А. Задорожный","doi":"10.21883/os.2023.07.56140.3852-23","DOIUrl":"https://doi.org/10.21883/os.2023.07.56140.3852-23","url":null,"abstract":"Transmittance coefficient of polymer membrane \"Nafion\" during adsorption of methylene blue and ascorbic acid from aqueous solutions onto the membrane was investigated by infrared (IR) Fourier spectrometry. A change in the membrane color and transmittance in the IR range during swelling of the polymer in the studied solutions was found, which is associated with chemical reactions occurring in the \"membrane-solution\" system. It was found experimentally that the adsorption and desorption rates of distilled water, oxidized Methylene blue (Mb^+) and reduced colorless leuco-form of methylene blue (MbH^0) on the polymer membrane are close and lie within the following limits: adsorption rate 0.029-0.031 min^-1, desorption rate 0.010-0.011 min^-1. The adsorption and desorption rates of ascorbic acid from aqueous solution were 0.021 and 0.08 min^-1, respectively. During the sorption of Мethylene blue leuco-form, we detected a change in membrane color. Thus, a redox reaction occurred in the membrane. Upon prolonged drying of the membrane, due to the proton-exchange properties of the membrane, the leuco-form of methylene blue oxidized to the initial state of Mb+. This fact may indicate the manifestation of metachromatic properties of the system \"Nafion - Methylene blue\". The system consisting of Methylene blue adsorbed on sulfonated perfluorocarbon can be considered as a model of dehydrogenase, a biocatalyst capable of hydrogen transfer. The Nafion membrane, due to its high cationic conductivity, promotes proton transfer and thus affects the rate of redox reactions involving Methylene blue.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75549005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Универсальные особенности проявления взаимосвязи локальной и сегментальной динамики в стеклообразных полимерах на терагерцовых частотах в инфракрасных спектрах 在特雷赫德红外光谱频率上，玻璃状聚合物中局部和分割动力学的普遍特征

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.01.54534.4323-22

В. А. Рыжов

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Люминесцентные свойства индивидуальных центров "кремний-вакансия" в CVD-наноалмазах, выращенных на различных подложках 在不同底座上生长的CVD-纳米钻石中，硅-空位中心的发光特性

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.02.55012.21-23

Д.Г. Пастернак, Д. А. Калашников, В Леонг, К. Чиа, А.М. Ромшин, С. В. Кузнецов, А. К. Мартьянов, В. С. Седов, Л.А. Кривицкий, И. И. Власов

{"title":"Люминесцентные свойства индивидуальных центров \"кремний-вакансия\" в CVD-наноалмазах, выращенных на различных подложках","authors":"Д.Г. Пастернак, Д. А. Калашников, В Леонг, К. Чиа, А.М. Ромшин, С. В. Кузнецов, А. К. Мартьянов, В. С. Седов, Л.А. Кривицкий, И. И. Власов","doi":"10.21883/os.2023.02.55012.21-23","DOIUrl":"https://doi.org/10.21883/os.2023.02.55012.21-23","url":null,"abstract":"The application of the technique of resonant excitation of photoluminescence at low temperatures using a narrow-band tunable laser significantly expands the possibilities of spectral investigation of individual luminescent centers in nanodiamonds, even in conditions of high concentrations of such centers. In this paper, a comparative analysis of the spectral characteristics of individual Silicon-Vacancy (SiV) centers in nanodiamonds grown with a spontaneous nucleation technique on germanium and silicon substrates is carried out. Studied diamond nanoparticles have a characteristic size of 300 nm and contain large ensembles of SiV centers. It was found that during the transition from silicon substrates, which are traditionally used in the CVD synthesis of diamonds, to germanium substrates, the spectral characteristics of the photoluminescence of SiV centers almost do not change.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78706045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Оптические спектры фотонно-кристаллической структуры со слоями графена 石墨烯层光晶体结构光学光谱

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.07.56131.3260-23

С. В. Елисеева, Дмитрий Игоревич Семенцов

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Генерация и тушение в XeCl-=SUP=-*-=/SUP=- эксимерном лазере при накачке смешанным гамма-нейтронным излучением ядерного реактора XeCl-=SUP -= - /SUP -= - eximer激光

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.07.56129.4549-23

А. И. Миськевич

{"title":"Генерация и тушение в XeCl-=SUP=-*-=/SUP=- эксимерном лазере при накачке смешанным гамма-нейтронным излучением ядерного реактора","authors":"А. И. Миськевич","doi":"10.21883/os.2023.07.56129.4549-23","DOIUrl":"https://doi.org/10.21883/os.2023.07.56129.4549-23","url":null,"abstract":"Экспериментально обнаружено снижение коэффициента усиления активной среды эксимерного лазера с ядерной накачкой на В-Х- и С-А-переходах молекулы XeCl* (308 nm, 352 nm) при накачке среды Ar-Xe-CCl4 смешанным гамма-нейтронным излучением ядерного реактора. Эффект обусловлен тушащим действием вторичных электронов, образующихся в активной среде эксимерного лазера под действием мгновенного гамма-излучения. Эффект значительно усиливается при увеличении плотности потока гамма-излучения, и коэффициент потерь может достигать значений ~10-2-2·10-2 сm-1. Ключевые слова: ядерная накачка, эксимерный лазер, гамма-излучение, тушение электронами.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72545966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Квантовое измерение амплитуды и фазы электромагнитного поля методом оптического гомодинирования 光同位素测定振幅和电磁场相

Оптика и спектроскопия Pub Date : 2023-01-01 DOI: 10.21883/os.2023.03.55391.3653-22

А. В. Козловский

引用次数: 0