Anisotropic optical properties of detwinned BaFe2As2

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Anisotropic Optical Properties of Thin-Film Thiacarbocyanine Dye Aggregates

Optical properties of thin films of aggregated thiacarbocyanine (TCC) dyes have been studied by means of spectroscopic ellipsometry and polarized IR spectroscopy. The experimental results reveal a strongly anisotropic response of the films, as quantified in the reported anisotropic dielectric functions over a wide range of frequencies. The studied TCC films exhibit both J-aggregate and H-aggreg...

Anisotropic Optical Properties of Heavy-Rare-Earth Single Crystals

The optical absorptivities of oriented single crystals of hcp Gd, Tb, Dy, Ho, Er, Tm, and Lu were measured at 4.2 K between 0.2 and 4.4 eV. Polarized radiation was used to reveal the optical anisotropy. Systematic movement of structures in the absorptivity and optical conductivity was observed as a result of trends within sp and d bands. Low-energy structures were related to effects of s−f exch...

Anisotropic electronic, mechanical, and optical properties of monolayer WTe2

Nanostructured SnS with inherent anisotropic optical properties for high photoactivity.

In view of the worldwide energy challenge in the 21(st) century, the technology of semiconductor-based photoelectrochemical (PEC) water splitting has received considerable attention as an alternative approach for solar energy harvesting and storage. Two-dimensional (2D) structures such as nanosheets have the potential to tap the solar energy by unlocking the functional properties at the nanosca...