Theoretical Analysis of the Optical Properties of Gold Nanoparticles Using DDA Approximation
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
This article describes a study, using numerical simulation, of the optical properties of nano particles as a function of their size. Many methods introduced to simulate and calculate the interaction of light and particle, such as Mie analysis, boundary element and finite element methods. The Discrete Dipole Approximation (DDA), wherein a target geometry is modeled as a finite array of polarizable elements and DDSCAT simulation, are employed for determining extinction, absorption and scattering cross sections by gold nano particles with 15, 35, 55, 75, 100, 125 and 150 nanometers in diameter in different wavelengths. In this method, the particle is represented as a cubic array of electric dipoles. The results show that Plasmon resonance dependent on nano particles size. In other project, the angular distribution of different sizes of gold nano particles are calculated and scattering of these particles are compared. This study can be helpful in designing appropriately shaped nano particles for in-vivo applications like photo-thermal cancer treatment and optical sensors.
Keywords:
Language:
English
Published:
International Journal Of Nanoscience and Nanotechnology, Volume:14 Issue: 2, Spring 2018
Pages:
153 to 158
magiran.com/p1837537
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!