Basıncın ve Sıcaklığın Dış Elektrik Alan Altındaki Kübik Kuantum Noktasının Üçüncü Harmonik Üretimi Üzerine Etkisi

Year 2019, Volume: 9 Issue: 1, 80 - 87, 15.01.2019

Muharrem Kirak

https://doi.org/10.17714/gumusfenbil.403764

Abstract

Düşük boyutlu sistemler, yük taşıyıcılarının nano
ölçekte sınırlandırıldığı yapılardır. Yük taşıyıcı hareketinin üç boyutta
sınırlandırıldığı yapılar kuantum noktalar olarak bilinir ve bu yapılar
moleküler biyoloji uygulamalarında, tıbbi görüntülemede, bilgi depolamada,
optik ve iletişim gibi aygıt uygulamalarında önemli bir rol oynar. Bu
çalışmada, dış elektrik alan altındaki kübik kuantum noktasının üçüncü harmonik
üretimi üzerine basıncın ve sıcaklığın etkisi teorik olarak incelenmiştir. Sayısal
hesaplamalar etkin kütle yaklaşımı altında yapılmıştır. Yapının taban durumu ve
uyarılmış durumların enerji özdeğerleri hesaplanmış ve elde edilen bu değerler
optik özelliğin hesaplanmasında kullanılmıştır. Aynı zamanda, kübik kuantum
nokta boyutu ve durulma oranı etkisi de incelendi. Sonuçlar basınç ve
sıcaklığın üçüncü harmonik üretimi üzerine büyük bir etkisinin olduğunu
göstermektedir.

Keywords

Basınç, Kübik kuantum nokta, Sıcaklık, Üçüncü harmonik üretimi

The Effect of Pressure and Temperature on the Third Harmonic Generation of Cubical Quantum Dot Under External Electric Field

Abstract

Low
dimensional systems are structures in which the charge carriers are confined in
nanoscale. The structures that the movements of charge carriers are restricted
in three dimensions are known as quantum dot and these structures play
important role in application of molecular biology, medical imaging, storage of
data, application devices such as optics and communication. In this study, the
effects of pressure and temperature on the third harmonic generation of cubic
quantım dot under external electric field theoretically have been investigated.
Numerical calculations have been done within the effective-mass approximation. The
energy eigenvalues of the ground state and excited states of the structure have
been calculated and the obtained these values have been used in calculation of
optical properties. Also,the effects of 
size of cubical quantum dot and the relaxation rate have been
investigated. Results show that  the
pressure and temperature has a great influence on third harmonic
generation.  

Keywords

Pressure, Cubical quantum dot, Temperature, Third harmonic generation

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