13 research outputs found
Laser-induced Interaction of Multilevel Quantum Dots
A theoretical model is developed for describing the laser-induced interaction of a pair of multilevel semi-
conductor quantum dots. Spectral dependencies of interaction energy are calculated in dipole-dipole ap-
proximation for a pair of CdSe quantum dots in a quasi-resonant laser field, for cases of two identical
quantum dots and those with differing transition wavelengths. Interaction energy of pair of multilevel
quantum dots in the long-wavelength potential well is much higher than that of pair of two-level quan-
tum dots. The increase of difference of resonance wavelengths of two interacting quantum dots leads to
decrease of the potential well depth
Comparative Analysis of Methods for Enhancement of the Photostability of CdTe@ TGA QDs' Colloid Solutions
Laser-induced Interaction of Multilevel Quantum Dots
A theoretical model is developed for describing the laser-induced interaction of a pair of multilevel semi-
conductor quantum dots. Spectral dependencies of interaction energy are calculated in dipole-dipole ap-
proximation for a pair of CdSe quantum dots in a quasi-resonant laser field, for cases of two identical
quantum dots and those with differing transition wavelengths. Interaction energy of pair of multilevel
quantum dots in the long-wavelength potential well is much higher than that of pair of two-level quan-
tum dots. The increase of difference of resonance wavelengths of two interacting quantum dots leads to
decrease of the potential well depth
Comparative Analysis of Methods for Enhancement of the Photostability of CdTe@ TGA QDs' Colloid Solutions
Comparative Analysis of Methods for Enhancement of the Photostability of CdTe@TGA QD Colloid Solutions
Π‘Π°ΠΌΠΎΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΡ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ, ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΠΌΠ°Ρ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΡΠΌ Π»Π°Π·Π΅ΡΠ½ΡΠΌ ΠΏΠΎΠ»Π΅ΠΌ
The paper presents theoretical justification for the possibility of formation of nanoparticle structures with
the predefined configuration. The process of formation is the self-organized aggregation of nanoparticles
under the action of external resonant laser field. The formation of various nanostructures that contain
metallic and semiconducting nanoparticles with resonances in the visible spectrum is considered in the
dipole-dipole approximationΠ’Π΅ΠΎΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΡΡΠΊΡΡΡ ΠΈΠ· Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ Ρ Π·Π°ΡΠ°Π½Π΅Π΅ Π·Π°Π΄Π°Π½Π½ΠΎΠΉ
ΠΊΠΎΠ½ΡΠΈΠ³ΡΡΠ°ΡΠΈΠ΅ΠΉ. ΠΡΠΎ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ Π±Π»Π°Π³ΠΎΠ΄Π°ΡΡ ΡΠ²Π»Π΅Π½ΠΈΡ ΡΠ°ΠΌΠΎΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΈ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ ΠΏΠΎΠ΄ Π΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ
Π²Π½Π΅ΡΠ½Π΅Π³ΠΎ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ. Π€ΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡ, ΡΠΎΠ΄Π΅Ρ-
ΠΆΠ°ΡΠΈΡ
ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΠΏΠΎΠ»ΡΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΈΠΊΠΎΠ²ΡΠ΅ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡΡ Ρ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΠΎΠΉ Π΄Π»ΠΈΠ½ΠΎΠΉ Π²ΠΎΠ»Π½Ρ Π² Π²ΠΈΠ΄ΠΈΠΌΠΎΠΉ
ΠΎΠ±Π»Π°ΡΡΠΈ, ΡΡΠΈΡΠ°Π»ΠΎΡΡ Π² Π΄ΠΈΠΏΠΎΠ»Ρ-Π΄ΠΈΠΏΠΎΠ»ΡΠ½ΠΎΠΌ ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½ΠΈ
Π‘Π°ΠΌΠΎΡΠ±ΠΎΡΠΊΠ° ΡΡΡΡΠΊΡΡΡ, ΡΠΎΡΡΠΎΡΡΠΈΡ ΠΈΠ· ΡΡΠ΅Ρ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ, Ρ Π·Π°ΡΠ°Π½Π΅Π΅ Π·Π°Π΄Π°Π½Π½ΠΎΠΉ Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΠ΅ΠΉ ΠΏΠΎΠ΄ Π΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ ΠΊΠ²Π°Π·ΠΈΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΠΎΠ³ΠΎ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ
In the paper a dynamic model of self-assembly of nanoparticles under laser field is proposed for research
the possibility of a step-by-step assembly of a structure consisting of three particles with different form.
The possibility of forming such structures with a predetermined geometry from a preformed pair of par-
ticles is consideredΠ ΡΠ°ΠΌΠΊΠ°Ρ
Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΡ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ ΡΠ°ΠΌΠΎΡΠ±ΠΎΡΠΊΠΈ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ Π² ΠΏΠΎΠ»Π΅ Π»Π°Π·Π΅Ρ-
Π½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ Ρ ΡΠ΅Π»ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΏΠΎΡΡΠ°ΠΏΠ½ΠΎΠΉ ΡΠ±ΠΎΡΠΊΠΈ ΡΡΡΡΠΊΡΡΡΡ, ΡΠΎΡΡΠΎΡΡΠ΅ΠΉ
ΠΈΠ· ΡΡΠ΅Ρ
ΡΠ°ΡΡΠΈΡ, Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠΉ ΡΠΎΡΠΌΠΎΠΉ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½ ΠΏΡΠΎΡΠ΅ΡΡ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠ°ΠΊΠΈΡ
ΡΡΡΡΠΊΡΡΡ Ρ Π·Π°Π΄Π°Π½Π½ΠΎΠΉ Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΠ΅ΠΉ Π² Π²Π°ΡΠΈΠ°Π½ΡΠ΅ ΠΏΡΠΈΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΠΊ Π·Π°ΡΠ°Π½Π΅Π΅ ΡΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΏΠ°ΡΠ΅ ΡΠ°ΡΡΠΈΡ ΡΡΠ΅ΡΡΠ΅ΠΉ
ΡΠ°ΡΡΠΈΡ
Π‘Π°ΠΌΠΎΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΡ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ, ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΠΌΠ°Ρ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΡΠΌ Π»Π°Π·Π΅ΡΠ½ΡΠΌ ΠΏΠΎΠ»Π΅ΠΌ
The paper presents theoretical justification for the possibility of formation of nanoparticle structures with
the predefined configuration. The process of formation is the self-organized aggregation of nanoparticles
under the action of external resonant laser field. The formation of various nanostructures that contain
metallic and semiconducting nanoparticles with resonances in the visible spectrum is considered in the
dipole-dipole approximationΠ’Π΅ΠΎΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΡΡΠΊΡΡΡ ΠΈΠ· Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ Ρ Π·Π°ΡΠ°Π½Π΅Π΅ Π·Π°Π΄Π°Π½Π½ΠΎΠΉ
ΠΊΠΎΠ½ΡΠΈΠ³ΡΡΠ°ΡΠΈΠ΅ΠΉ. ΠΡΠΎ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ Π±Π»Π°Π³ΠΎΠ΄Π°ΡΡ ΡΠ²Π»Π΅Π½ΠΈΡ ΡΠ°ΠΌΠΎΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΈ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ ΠΏΠΎΠ΄ Π΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ
Π²Π½Π΅ΡΠ½Π΅Π³ΠΎ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ. Π€ΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡ, ΡΠΎΠ΄Π΅Ρ-
ΠΆΠ°ΡΠΈΡ
ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΠΏΠΎΠ»ΡΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΈΠΊΠΎΠ²ΡΠ΅ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡΡ Ρ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΠΎΠΉ Π΄Π»ΠΈΠ½ΠΎΠΉ Π²ΠΎΠ»Π½Ρ Π² Π²ΠΈΠ΄ΠΈΠΌΠΎΠΉ
ΠΎΠ±Π»Π°ΡΡΠΈ, ΡΡΠΈΡΠ°Π»ΠΎΡΡ Π² Π΄ΠΈΠΏΠΎΠ»Ρ-Π΄ΠΈΠΏΠΎΠ»ΡΠ½ΠΎΠΌ ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½ΠΈ
ΠΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π΄ΠΈΡΡΠ΅ΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ Π·ΠΎΠ½Π΄ΡΠΎΠ²Π°Π½ΠΈΡ Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ Π½ΠΈΠ·ΠΊΠΈΡ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ ΠΌΠ΅ΡΠ°Π½Π° Π² ΠΏΡΠΈΠ·Π΅ΠΌΠ½ΠΎΠΌ ΡΠ»ΠΎΠ΅
The relevance of research is due to the need for remote monitoring of the atmosphere for
the presence of suspended matter. The application of this method for exploration in geo-prospecting
will make it possible to identify areas with an increased content of suspended solids in the atmosphere,
which will make it possible to record local outputs of natural gas, as well as observe the spatial dynamics
of surface leaks in real time, carry out topographic referencing of prospective fields, etc. In addition,
detection leaks and increased concentration of methane will allow early implementation of a set of
measures aimed at preventing environmental disastersΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΎΠ±ΡΡΠ»ΠΎΠ²Π»Π΅Π½Π° Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎΡΡΡΡ Π΄ΠΈΡΡΠ°Π½ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΌΠΎΠ½ΠΈΡΠΎΡΠΈΠ½Π³Π° Π°ΡΠΌΠΎΡΡΠ΅ΡΡ Π½Π° Π½Π°Π»ΠΈΡΠΈΠ΅ Π²Π·Π²Π΅ΡΠ΅Π½Π½ΡΡ
Π²Π΅ΡΠ΅ΡΡΠ². ΠΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΡΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° Π³Π΅ΠΎΠ»ΠΎΠ³ΠΎΡΠ°Π·Π²Π΅Π΄ΠΎΡΠ½ΡΡ
ΡΠ°Π±ΠΎΡ ΠΏΡΠΈ Π³Π΅ΠΎΠ»ΠΎΠ³ΠΎΡΠ°Π·Π²Π΅Π΄ΠΊΠ΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΡ Π²ΡΡΠ²ΠΈΡΡ ΡΡΠ°ΡΡΠΊΠΈ Ρ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΡΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ Π²Π·Π²Π΅ΡΠ΅Π½Π½ΡΡ
Π²Π΅ΡΠ΅ΡΡΠ² Π² Π°ΡΠΌΠΎΡΡΠ΅ΡΠ΅, Π΄Π°ΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΠ΅Π³ΠΈΡΡΡΠΈΡΠΎΠ²Π°ΡΡ Π»ΠΎΠΊΠ°Π»ΡΠ½ΡΠ΅ Π²ΡΡ
ΠΎΠ΄Ρ ΠΏΡΠΈΡΠΎΠ΄Π½ΠΎΠ³ΠΎ Π³Π°Π·Π°, Π° ΡΠ°ΠΊΠΆΠ΅
Π½Π°Π±Π»ΡΠ΄Π°ΡΡ ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π΅Π½Π½ΡΡ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ½ΡΡ
ΡΡΠ΅ΡΠ΅ΠΊ Π² ΡΠ΅ΠΆΠΈΠΌΠ΅ ΡΠ΅Π°Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ, ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΡΡ ΡΠΎΠΏΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΡΡ ΠΏΡΠΈΠ²ΡΠ·ΠΊΡ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
ΠΌΠ΅ΡΡΠΎΡΠΎΠΆΠ΄Π΅Π½ΠΈΠΉ ΠΈ Ρ.Π΄. ΠΡΠΎΠΌΠ΅ ΡΠΎΠ³ΠΎ, ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΠ΅
ΡΡΠ΅ΡΠ΅ΠΊ ΠΈ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΠΎΠΉ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΌΠ΅ΡΠ°Π½Π° ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΡ Π·Π°Π±Π»Π°Π³ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎ ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°ΡΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡ ΠΌΠ΅ΡΠΎΠΏΡΠΈΡΡΠΈΠΉ, Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΡΡ
Π½Π° ΠΏΡΠ΅Π΄ΠΎΡΠ²ΡΠ°ΡΠ΅Π½ΠΈΠ΅ ΡΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠ°ΡΠ°ΡΡΡΠΎ