6 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
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
ΠΠ»ΠΈΡΠ½ΠΈΠ΅ ΠΌΠ½ΠΎΠ³ΠΎΡΡΠΎΠ²Π½Π΅Π³ΠΎ Ρ Π°ΡΠ°ΠΊΡΠ΅ΡΠ° ΡΠΏΠ΅ΠΊΡΡΠ° ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ ΡΠΎΡΠ΅ΠΊ Π½Π° ΡΠ½Π΅ΡΠ³ΠΈΡ ΠΈΡ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ Π² ΠΏΠΎΠ»Π΅ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ
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 depthΠ Π΄ΠΈΠΏΠΎΠ»Ρ-Π΄ΠΈΠΏΠΎΠ»ΡΠ½ΠΎΠΌ ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½ΠΈΠΈ ΠΏΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½ ΡΠ°ΡΡΠ΅Ρ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΏΠ΅ΠΊΡΡΠΎΠ² Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ
ΠΏΠ°ΡΡ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ CdSe Π² ΠΊΠ²Π°Π·ΠΈΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΠΎΠΌ Π»Π°Π·Π΅ΡΠ½ΠΎΠΌ ΠΏΠΎΠ»Π΅ Π΄Π»Ρ ΡΠ»ΡΡΠ°Π΅Π² Π΄Π²ΡΡ
ΠΎΠ΄ΠΈΠ½Π°ΠΊΠΎΠ²ΡΡ
ΡΠ°ΡΡΠΈΡ
ΠΈ ΡΠ°ΡΡΠΈΡ Ρ ΠΎΡΠ»ΠΈΡΠ°ΡΡΠΈΠΌΠΈΡΡ Π΄Π»ΠΈΠ½Π°ΠΌΠΈ Π²ΠΎΠ»Π½ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄ΠΎΠ². ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΡΠ΅Ρ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΠΏΠ΅-
ΡΠ΅Ρ
ΠΎΠ΄ΠΎΠ² Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅Ρ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ Π΄Π»Ρ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΡΠΌΡ,
Π»Π΅ΠΆΠ°ΡΠ΅ΠΉ Π² Π΄Π»ΠΈΠ½Π½ΠΎΠ²ΠΎΠ»Π½ΠΎΠ²ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ ΡΠΏΠ΅ΠΊΡΡΠ°. ΠΠ° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ Π΄Π²ΡΡ
ΡΠ°ΡΡΠΈΡ Ρ ΠΎΠ³ΡΠ°Π½ΠΈΡΠ΅Π½Π½ΡΠΌ ΡΠΈΡΠ»ΠΎΠΌ
ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΡΠ°Π·Π½ΠΎΡΡΠΈ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΡΡ
Π΄Π»ΠΈΠ½ Π²ΠΎΠ»Π½ Π½Π° Π³Π»ΡΠ±ΠΈΠ½Ρ ΠΈ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΡΠ΅Π½-
ΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΡΠΌΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π³Π»ΡΠ±ΠΈΠ½Π° ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΡΠΌΡ ΡΠΌΠ΅Π½ΡΡΠ°Π΅ΡΡΡ ΠΏΡΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠΈ ΡΠ°Π·Π½ΠΎΡ-
ΡΠΈ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΡΡ
Π΄Π»ΠΈΠ½ Π²ΠΎΠ»Π½ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄ΠΎΠ² Π΄Π²ΡΡ
ΡΠ°ΡΡΠΈ
ΠΠ»ΠΈΡΠ½ΠΈΠ΅ ΠΌΠ½ΠΎΠ³ΠΎΡΡΠΎΠ²Π½Π΅Π³ΠΎ Ρ Π°ΡΠ°ΠΊΡΠ΅ΡΠ° ΡΠΏΠ΅ΠΊΡΡΠ° ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ ΡΠΎΡΠ΅ΠΊ Π½Π° ΡΠ½Π΅ΡΠ³ΠΈΡ ΠΈΡ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ Π² ΠΏΠΎΠ»Π΅ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ
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 depthΠ Π΄ΠΈΠΏΠΎΠ»Ρ-Π΄ΠΈΠΏΠΎΠ»ΡΠ½ΠΎΠΌ ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½ΠΈΠΈ ΠΏΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½ ΡΠ°ΡΡΠ΅Ρ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΏΠ΅ΠΊΡΡΠΎΠ² Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ
ΠΏΠ°ΡΡ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ CdSe Π² ΠΊΠ²Π°Π·ΠΈΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΠΎΠΌ Π»Π°Π·Π΅ΡΠ½ΠΎΠΌ ΠΏΠΎΠ»Π΅ Π΄Π»Ρ ΡΠ»ΡΡΠ°Π΅Π² Π΄Π²ΡΡ
ΠΎΠ΄ΠΈΠ½Π°ΠΊΠΎΠ²ΡΡ
ΡΠ°ΡΡΠΈΡ
ΠΈ ΡΠ°ΡΡΠΈΡ Ρ ΠΎΡΠ»ΠΈΡΠ°ΡΡΠΈΠΌΠΈΡΡ Π΄Π»ΠΈΠ½Π°ΠΌΠΈ Π²ΠΎΠ»Π½ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄ΠΎΠ². ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΡΠ΅Ρ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΠΏΠ΅-
ΡΠ΅Ρ
ΠΎΠ΄ΠΎΠ² Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅Ρ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ Π΄Π»Ρ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΡΠΌΡ,
Π»Π΅ΠΆΠ°ΡΠ΅ΠΉ Π² Π΄Π»ΠΈΠ½Π½ΠΎΠ²ΠΎΠ»Π½ΠΎΠ²ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ ΡΠΏΠ΅ΠΊΡΡΠ°. ΠΠ° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ Π΄Π²ΡΡ
ΡΠ°ΡΡΠΈΡ Ρ ΠΎΠ³ΡΠ°Π½ΠΈΡΠ΅Π½Π½ΡΠΌ ΡΠΈΡΠ»ΠΎΠΌ
ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΡΠ°Π·Π½ΠΎΡΡΠΈ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΡΡ
Π΄Π»ΠΈΠ½ Π²ΠΎΠ»Π½ Π½Π° Π³Π»ΡΠ±ΠΈΠ½Ρ ΠΈ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΡΠ΅Π½-
ΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΡΠΌΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π³Π»ΡΠ±ΠΈΠ½Π° ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΡΠΌΡ ΡΠΌΠ΅Π½ΡΡΠ°Π΅ΡΡΡ ΠΏΡΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠΈ ΡΠ°Π·Π½ΠΎΡ-
ΡΠΈ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΡΡ
Π΄Π»ΠΈΠ½ Π²ΠΎΠ»Π½ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄ΠΎΠ² Π΄Π²ΡΡ
ΡΠ°ΡΡΠΈ