M. A. Mansouri-Birjandi
University of Sistan and Baluchestan
[ 1 ] - Add-Drop and Channel-Drop Optical Filters Based on Photonic Crystal Ring Resonators
Here, we propose an add-drop and a channel drop filter based on two-dimensional photonic crystal all circular ring resonators. These structures are made of a square lattice of silicon rods with the refractive index n1=3.464 surrounded by air (with refractive index n2=1). The broadest photonic band gap occurs at the filling ratio of r/a = 0.17. Two linear defect W1 waveguides couple to the ring....
[ 2 ] - Wideband Dispersion Compensation in Square Lattice Photonic Crystal Fibe
In this paper, a new structure is provided for the dispersion compensating photonic crystal fibers in order to broaden the chromatic dispersion and increase the dispersion compensating capability in a wide wavelength range. In the structure, putting a combination of circular holes and a star structure in the inner core clad causes the dispersion coefficient profile to be broadened, and addition...
[ 3 ] - Wideband Dispersion Compensation in Hexagonal Lattice Photonic Crystal Fiber
In this paper, a new structure is provided for the dispersion compensating photonic crystal fibers in order to broaden the chromatic dispersion and increase the dispersion compensating capability in a wide wavelength range. In the structure, putting elliptical holes in the first ring of the inner core clad of a dispersion compensating fiber of the hexagonal lattice, increases the wavelength ran...
[ 4 ] - بررسی عوامل افزایش بازده در سلول خورشیدی ناهمجنس با نقاط کوانتومی
ضخامت لایۀ نقاط کوانتومی و نیمهرسانای شفاف با شکاف بزرگ، میزان ناخالصی لایۀ نقاط کوانتومیو نوع فلز آند از جمله عوامل تأثیرگذار بر بازدهِ سلولهای خورشیدی نقطۀ کوانتومی ناهمجنس (HQDSC) میباشند. در این مقاله با استفاده از نرمافزار کامسول نسخه 4/5، ابتدا سلولی شامل یک لایه از نقاط کوانتومی سولفید سرب (PbS) پوشیده از لیگاندهای کوتاه و یک لایه نیمهرسانای اکسید روی (ZnO) و آندی از جنس طلا شبیهسا...
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