Excitonic effects on the nonlinear optical properties of small quantum dots

Journal of Physics D Applied Physics · Ağustos 2008

YÖKSİS Kayıtları

Journal of Physics D: Applied Physics · 2008 SCI-Expanded 49 atıf

Prof. Dr. İBRAHİM KARABULUT →

Excitonic effects on the nonlinear optical properties of small quantum dots

Journal of Physics D: Applied Physics · 2008 SCI-Expanded

Prof. Dr. HALUK ŞAFAK →

YÖKSİS Kayıtları — ISSN Eşleşmesi

Excitonic effects on the nonlinear optical properties of small quantum dots

2008 ISSN: 0022-3727 SCI-Expanded

Prof. Dr. HALUK ŞAFAK →

10.1088/0022-3727/41/15/155104

Excitonic effects on the nonlinear optical properties of small quantum dots

2008 ISSN: 0022-3727 SCI-Expanded 49 atıf

Prof. Dr. İBRAHİM KARABULUT →

10.1088/0022-3727/41/15/155104

A detailed investigation of electronic and intersubband optical properties of Al sub i x i sub Ga sub 1 i x i sub As Al sub 0 3 sub Ga sub 0 7 sub As Al sub i y i sub Ga sub 1 i y i sub As Al sub 0 3 sub Ga sub 0 7 sub As multi shell quantum dots title

2014 ISSN: 0022-3727 SCI-Expanded

Prof. Dr. ÜLFET ATAV →

10.1088/0022-3727/47/29/295302

A detailed investigation of electronic and intersubband optical properties of AlxGa 1 x As Al0 3Ga0 7As AlyGa 1 y As Al0 3Ga0 7As multi shell quantum dots

2014 ISSN: 0022-3727 SCI 5 atıf

Dr. Öğr. Üyesi AHMET EMRE KAVRUK →

10.1088/0022-3727/47/29/295302

Makale Bilgileri

Dergi Journal of Physics D Applied Physics

ISSN00223727

Yayın TarihiAğustos 2008

Cilt / Sayfa41

DOI10.1088/0022-3727/41/15/155104

Scopus ID2-s2.0-49749116785

Özet The excitonic effects on the nonlinear optical properties of small quantum dots with a semiparabolic confining potential are studied under the density matrix formalism. First, within the framework of the strong confinement approximation, we present the excitonic states and then calculate the excitonic effects on the nonlinear optical properties, such as second harmonic generation, third harmonic generation, nonlinear absorption coefficient and refractive index changes. We find the explicit analytical expressions between the corresponding nonlinear optical properties with and without considering the excitonic effects. It is seen that these analytical expressions are related only to ratios of the effective masses of electron and hole. These explicit expressions indicate that the excitonic effects on the corresponding nonlinear optical properties become more important with increasing orders of the optical susceptibilities. In addition, we suggest a scaling rule for the nth-order susceptibility as γ(n+1)/2. The effect of the confining potential frequency on the corresponding nonlinear optical properties is also studied. Our results show a remarkable dependence of nonlinear optical properties on both the excitonic effects and the confining potential frequency. © 2008 IOP Publishing Ltd.