S
Safaa Hassan
Researcher at University of North Texas
Publications - 19
Citations - 123
Safaa Hassan is an academic researcher from University of North Texas. The author has contributed to research in topics: Photonics & Photonic crystal. The author has an hindex of 6, co-authored 19 publications receiving 94 citations.
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Holographic fabrication of graded photonic super-crystals using an integrated spatial light modulator and reflective optical element laser projection system
TL;DR: In this paper, a hybrid laser projection system with a spatial light modulator and a single reflective optical element was proposed for the holographic fabrication of graded photonic super-crystals.
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Holographic fabrication of graded photonic super-quasi-crystals with multiple-level gradients.
David Lowell,Safaa Hassan,Oliver Sale,Murthada Adewole,Noah Hurley,Usha Philipose,Banglin Chen,Yuankun Lin +7 more
TL;DR: This paper presents the holographic fabrication of graded photonic super-quasi-crystals through pixel-by-pixel phase pattern engineering using a spatial light modulator and observed the golden ratio in the diameters of the diffraction rings of the fabricated quasi-crystal, indicating five-fold symmetry.
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High light extraction efficiency into glass substrate in organic light-emitting diodes by patterning the cathode in graded superlattice with dual periodicity and dual basis
TL;DR: In this paper, the light extraction efficiency of planar, white organic light-emitting diodes where the Al cathode is patterned with the graded superlattice with dual basis was computed.
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Extraordinary Light-Trapping Enhancement in Silicon Solar Cell Patterned with Graded Photonic Super-Crystals
TL;DR: In this paper, the authors explored light-trapping enhancement in newly discovered graded photonic super-crystals (GPSCs) with dual periodicity and dual basis for the first time.
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Holographic Fabrication and Optical Property of Graded Photonic Super-Crystals with a Rectangular Unit Super-Cell
TL;DR: In this article, the spatial light modulator-based pixel-by-pixel phase engineering of the incident laser beam provides a high resolution phase pattern for interference lithography, which provides a flexible design for the graded photonic super-crystals with a different ratio of length over the width of the rectangular unit supercell.