scholarly journals Enhanced photoluminescence of LEuH nanosheets: 2D photonic crystals self-assembled by core–shell SiO2@LEuH spheres

RSC Advances ◽  
2019 ◽  
Vol 9 (14) ◽  
pp. 8131-8136
Author(s):  
Xinying Wang ◽  
Pingping Feng ◽  
Baiyi Shao ◽  
Fangming Cui ◽  
Xiaojing Yang
Keyword(s):  
Photonic Crystals ◽  
Colloidal Crystal ◽  
Core Shell ◽  
Two Dimensional ◽  
Enhanced Photoluminescence ◽  
Self Assembled

A two-dimensional (2D) colloidal crystal of core–shell-structured SiO2@LEuH spheres was prepared and showed enhanced photoluminescence at 611 nm (5D0 → 7F2).

Self-Assembled Polystyrene Microparticle Layers as Two-Dimensional Photonic Crystals

1999 ◽  
Vol 327 (1) ◽  
pp. 95-98 ◽  
Author(s):  
Ryoko Shimada ◽  
Aya Imada ◽  
Takao Koda ◽  
Toru Fujimura ◽  
Keiichi Edamatsu ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Two Dimensional ◽  
Self Assembled

Dirac-like cone dispersion in two-dimensional core-shell dielectric photonic crystals

2015 ◽  
Vol 9 (1) ◽  
pp. 093057 ◽  
Author(s):  
Muhammad Waseem Ashraf ◽  
Muhammad Faryad
Keyword(s):  
Photonic Crystals ◽  
Core Shell ◽  
Two Dimensional

scholarly journals Люминесценция пространственно упорядоченных одиночных и групп самоформирующихся Ge(Si) наноостровков, встроенных в фотонные кристаллы

2020 ◽  
Vol 54 (8) ◽  
pp. 708
Author(s):  
Ж.В. Смагина ◽  
А.В. Новиков ◽  
М.В. Степихова ◽  
В.А. Зиновьев ◽  
Е.Е. Родякина ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Room Temperature ◽  
Two Dimensional ◽  
Pronounced Increase ◽  
Ordered Array ◽  
Pl Intensity ◽  
Self Assembled

Photoluminescence (PL) properties of arrays of spatially ordered single Ge(Si) self-assembled islands, including embedded in two-dimensional photonic crystals (PhC), was studied. Incorporation of an array of ordered single islands and their groups into PhC significantly increases the intensity of their PL signal. The most pronounced increase in intensity (up to 30 times at nitrogen temperatures) is observed for an ordered array of single islands. The increase in PL intensity is associated with interaction of island emission with the radiation modes of the PhC, which is more efficient for an array of spatially ordered single islands. As result PL from single ordered Ge(Si) islands embedded in PhC was observed up to room temperature.

scholarly journals Упорядоченные массивы квантовых точек Ge(Si), встроенные в двумерные фотонные кристаллы

2019 ◽  
Vol 53 (10) ◽  
pp. 1366
Author(s):  
Ж.В. Смагина ◽  
В.А. Зиновьев ◽  
Е.Е. Родякина ◽  
Б.И. Фомин ◽  
М.В. Степихова ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photonic Crystals ◽  
Spectral Range ◽  
Silicon Surface ◽  
Room Temperature ◽  
Two Dimensional ◽  
Growth Modes ◽  
Self Assembled

Two approaches to the integration of ordered Ge(Si) self-assembled quantum dots (QDs) into two-dimensional photonic crystals (PhC) are considered in the paper. The first approach involves the synthesis on the structured silicon surface of the ordered Ge(Si) QD array, on which PhC is then formed. In the second approach, the PhC itself serves as the template for the ordered QD growth. It is shown that varying the diameter of PhC holes in the framework of the second approach, two growth modes of QDs can be realized, when they are formed inside or outside the PhC holes. For structures with ordered QDs built into PhC, an increase in the intensity of the photoluminescence signal was detected at room temperature in the spectral range of 0.9-1.2 eV, which is associated with the interaction of the emission with the radiation modes of PhC.

Direct Transcription of Two-Dimensional Colloidal Crystal Arrays into Three-Dimensional Photonic Crystals

2012 ◽  
Vol 23 (9) ◽  
pp. 1164-1171 ◽  
Author(s):  
Alexandru Vlad ◽  
Andreas Frölich ◽  
Thomas Zebrowski ◽  
Constantin Augustin Dutu ◽  
Kurt Busch ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Colloidal Crystal ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Direct Transcription

Transmission Spectrum of Two-Dimensional Self-Assembled SiO2 Photonic Crystals

2013 ◽  
Vol 538 ◽  
pp. 328-331
Author(s):  
Yuan Ming Huang ◽  
Bao Gai Zhai ◽  
Qing Lan Ma
Keyword(s):  
Photonic Crystals ◽  
Theoretical Calculations ◽  
The Self ◽  
Band Gaps ◽  
Two Dimensional ◽  
Direct Control ◽  
Photon Propagation ◽  
Self Assembled ◽  
Photon Confinement ◽  
Photonic Band

Controlling the photon propagation in materials by photonic crystals lies at the heart of quantum optics. The motivation of our work is to investigate the direct control of the photon confinement in the self-assembled two-dimensional SiO2 photonic crystals. Here we demonstrate the realization of transmitted light controls in the self-assembled two-dimensional SiO2 PCs. Our experimental results agree well with the theoretical calculations on the photonic band gaps in the spectral region of 400-1100 nm. These results present experimental evidence on the direct control of the photon confinement in the self-assembled two-dimensional SiO2 PCs.

Enhancement of the Luminescence Signal from Self-Assembled Ge(Si) Nanoislands due to Interaction with the Modes of Two-Dimensional Photonic Crystals

2020 ◽  
Vol 54 (8) ◽  
pp. 975-981
Author(s):  
D. V. Yurasov ◽  
A. V. Novikov ◽  
S. A. Dyakov ◽  
M. V. Stepikhova ◽  
A. N. Yablonskiy ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Two Dimensional ◽  
Luminescence Signal ◽  
Self Assembled
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