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Strain-engineered Ge embedded into microresonators as an active media for Si photonics
P. 1–2.
Yurasov D. V., Gusev N. S., Dyakov S. A., Nezhdanov A. V., Novokov A. V., Skorokhodov E. V., Verbus V. A., Yablonskiy A. N., Krasilnik Z. F.
Optical properties of tensile strained n-doped Ge microstructures were investigated. Formation of microresonators based on Bragg reflectors and photonic crystals were implemented for such kind of active medium and opportunities to employ them for fabrication of efficient Si-compatible light sources were discussed.
In book
Singapore: IEEE, 2019.
Ivanov K., Fedosov I. S., Войтович В. И. et al., Письма в Журнал технической физики 2026 Т. 52 № 12 С. 53–58
The paper presents the model of a microdisk laser – photonic crystal defect waveguide coupling system. Different finite dimensions of photonic crystals are taken into account. It is shown that coupling to a photonic crystal waveguide allows to increase the output power while maintain quality factor, which is not what a traditional coupling to a ...
Added: June 4, 2026
Юрасов Д. В., Яблонский А. Н., Шалеев М. В. et al., Письма в Журнал технической физики 2023 Т. 49 № 10 С. 29–32
The effect of the depth of etching of holes in two-dimensional photonic crystals formed
on Si structures with embedded Ge nanoislands, on their luminescent response. Found that
the maximum intensity of the luminescent response from photonic crystals is observed not at
formation of holes to the entire depth of the structure, and at some intermediate depth of etching.
Possible ...
Added: June 27, 2023
Lazarev M., Журнал радиоэлектроники 2011 № N 9 С. 1–15
Usually, the formation of band gaps in photonic crystals (PCs) is associated with the condition of Bragg reflection, when the optical path length through the unit cell size of half a wavelength. In this article we have shown that at high contrast admittance values of layers, forming a one-dimensional PC, there can be formed bandgaps ...
Added: October 29, 2021
Selyukov A. S., Ю.Г. Вайнер, Vitukhnovsky A. G., Квантовая электроника 2020 Т. 50 № 3 С. 252–254
Samples of inverted photonic-crystal films, containing planar and rolled-up (in the form of scrolls) CdSe nanocrystals, are studied. The transmission spectra of these structures are recorded These spectra (along with the change in colour) confirm the incorporation of nanocrystals into the films. The photoluminescence decay dynamics is investigated. It is shown that the photonic-crystal matrix ...
Added: October 18, 2021
Ignatyeva D., Kapralov P., Golovko P. et al., Sensors 2021 Vol. 21 No. 6 Article 1984
We propose an all-dielectric magneto-photonic crystal with a hybrid magneto-optical
response that allows for the simultaneous measurements of the surface and bulk refractive index of
the analyzed substance. The approach is based on two different spectral features of the magnetooptical
response corresponding to the resonances in p- and s-polarizations of the incident light.
Angular spectra of p-polarized light have ...
Added: March 13, 2021
P. V. Dolganov, K. D. Baklanova, Bobrovsky A. Y., Liquid Crystals 2021 Vol. 48 No. 9 P. 1339–1348
We report complex optical investigations of polymer-stabilised cholesteric photonic liquid crystal doped by a dichroic fluorescent dye. For the first time, we employed a combination of various experimental methods, including measurements of spectra of transmission, reflection, rotation of the plane of polarisation of light, fluorescence, to characterise the properties of the photonic crystal. The peculiarity ...
Added: January 19, 2021
Konopsky V., Melnikov A., Alieva E. et al., Journal of the Optical Society of America B: Optical Physics 2019 Vol. 36 No. 10 P. 2871–2875
Generation of third-harmonic radiation, visible to the naked eye as a collimated green beam, is obtained via femtosecond excitation of the optical surface modes (SMs) propagating along a one-dimensional (1D) photonic crystal (PC) for s- and p-polarizations separately. For both polarizations, the PC SMs exist at the fundamental and third-harmonic frequencies, which allows efficient nonlinear ...
Added: November 29, 2019
Юрасов Д. В., Байдакова Н. А., Verbus V. A. et al., В кн.: Труды ХХIII Международного симпозиума «Нанофизика и наноэлектроника», 11-14 марта 2019, Нижний Новгород, т.2,Т. 2: Полупроводниковые наноструктуры:.: Нижегородский государственный университет им. Н.И. Лобачевского, 2019. С. 898–899.
The results of formation of locally stretched Ge microstructures and investigation of their optical properties are presented. Free-hanging Ge structures were obtained by optical lithography, plasma chemical etching and selective chemical etching using the "stress concentration" method. To provide heat dissipation from free-hanging structures, the scheme of their formation was modified so as to provide ...
Added: October 28, 2019