排序方式: 共有9条查询结果,搜索用时 31 毫秒
1
1.
A. A. Shimkin V. Z. Shirinian A. K. Mailian D. V. Lonshakov V. V. Gorokhov M. M. Krayushkin 《Russian Chemical Bulletin》2011,60(1):139-142
C-Acylation of Meldrum’s acid by (het)arylacetic acids in ethanol in the presence of 1,1′-carbonyldiimidazole leads to ethyl
4-(het)aryl-3-oxobutanoates in high yields. 相似文献
2.
3.
Dmitriev N. Yu. Voloshin A. S. Kondratiev N. M. Lobanov V. E. Min’kov K. N. Shitikov A. E. Danilin A. N. Lonshakov E. A. Bilenko I. A. 《Journal of Experimental and Theoretical Physics》2022,135(1):9-19
Journal of Experimental and Theoretical Physics - Optical frequency combs are a unique tool for fundamental metrology, spectroscopy, and a broad spectrum of applications. High-Q microresonators... 相似文献
4.
A. N. Gentselev S. A. Kuznetsov S. G. Baev B. G. Goldenberg E. A. Lonshakov 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2017,11(4):710-720
A technique for fabricating self-bearing pseudometallic structures, which hold promise for utilization as quasi-optical frequency-selective elements in the terahertz range of the electromagnetic spectrum, is discussed. The technique is based on microstructuring a continuous dielectric layer via stencilled X-ray lithography involving synchrotron radiation with subsequent metallization of the entire structure surface. The main manufacturing schemes are described, including fabrication of the initial substrates and X-ray masks. Examples of samples of the produced selective elements, such as frequency filters and flat lenses, as well as their operating characteristics, are presented. 相似文献
5.
Shitikov A. E. Voloshin A. S. Gorelov I. K. Lonshakov E. A. Min’kov K. N. Dmitriev N. Yu. Kondrat’ev N. M. Lobanov V. E. Bilenko I. A. 《Journal of Experimental and Theoretical Physics》2022,134(5):583-589
Journal of Experimental and Theoretical Physics - Experimental data for the generation of optical frequency combs in magnesium fluoride microcavities with whispering gallery modes at 780 nm are... 相似文献
6.
Valerii Z. Shirinian Andrey G. Lvov Dmitry V. Lonshakov Anton V. Yadykov Vadim V. Kachala Mikhail M. Krayushkin 《Tetrahedron letters》2018,59(3):243-246
Cyclopentenyl carbocations formed as a result of the protonation of 3,4-substituted cyclopent-3-en-1,2-diols can give either cyclopent-2-en-1-one derivatives via pinacol rearrangement or interrupted reaction products similar to the Nazarov intermediate. 相似文献
7.
8.
D. V. Lonshakov V. Z. Shirinian A. G. Lvov M. M. Krayushkin 《Russian Chemical Bulletin》2012,61(9):1769-1775
Oxidation of 2,3-diarylcyclopent-2-en-1-ones with m-chloroperoxybenzoic acid gave new thermally stable sulfone derivatives of photochromic diarylethenes. The spectral properties of the compounds obtained (the wavelengths of the maxima of the absorption bands of their initial and cyclic forms, the quantum yields of photocyclization and photobleaching reactions) as well as their thermal stability and fatigue resistance were examined. The relationship between the structures of the synthesized compounds and their photochromic properties was determined. The energy differences between the ground-state molecules of the starting and photoinduced isomers of 2,3-diarylcyclopent-2-en-1-ones were calculated by the DFT/B3LYP1 method with the 6-31G(d) basis set. The calculated energy differences can be used to predict and explain such spectral characteristics of photochromic diarylethenes as the thermal stability of photoinduced isomers and the quantum yields of cycloreversion reactions. 相似文献
9.
Nikita M. Kondratiev Valery E. Lobanov Artem E. Shitikov Ramzil R. Galiev Dmitry A. Chermoshentsev Nikita Yu. Dmitriev Andrey N. Danilin Evgeny A. Lonshakov Kirill N. Min’kov Daria M. Sokol Steevy J. Cordette Yi-Han Luo Wei Liang Junqiu Liu Igor A. Bilenko 《Frontiers of Physics》2023,18(2):21305
The stabilization and manipulation of laser frequency by means of an external cavity are nearly ubiquitously used in fundamental research and laser applications. While most of the laser light transmits through the cavity, in the presence of some back-scattered light from the cavity to the laser, the self-injection locking effect can take place, which locks the laser emission frequency to the cavity mode of similar frequency. The self-injection locking leads to dramatic reduction of laser linewidth and noise. Using this approach, a common semiconductor laser locked to an ultrahigh-Q microresonator can obtain sub-Hertz linewidth, on par with state-of-the-art fiber lasers. Therefore it paves the way to manufacture high-performance semiconductor lasers with reduced footprint and cost. Moreover, with high laser power, the optical nonlinearity of the microresonator drastically changes the laser dynamics, offering routes for simultaneous pulse and frequency comb generation in the same microresonator. Particularly, integrated photonics technology, enabling components fabricated via semiconductor CMOS process, has brought increasing and extending interest to laser manufacturing using this method. In this article, we present a comprehensive tutorial on analytical and numerical methods of laser self-injection locking, as well a review of most recent theoretical and experimental achievements. 相似文献
1