2022
DOI: 10.1142/s0217984922500099
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Design and optimization of 1 × 2 and 1 × 4 Y-shaped beam splitters in GaSb-based 2D photonic crystals

Abstract: In this paper, we investigate the structural design of beam splitters with high total transmission efficiency in the two-dimensional (2D) GaSb (Gallium Antimonide)-based photonic crystals, and several optimal structures for [Formula: see text] and [Formula: see text] Y-shaped beam splitters have been provided. Using our proposed alternating iteration algorithm, by introducing several microstructures in the bend and Y-shaped junction areas to achieve topology optimization, the design of Y-shaped beam splitters … Show more

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Cited by 3 publications
(2 citation statements)
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“…In various optical applications such as interferometers [4][5][6], chromatic dispersion [7,8], and optical communications [9], a beam splitter [10][11][12] plays a significant role in separating light polarization, wavelength, and power, due to their ability to split an incoming light beam into two or more separate beams. Various methods and structures, including photonic crystals [13][14][15], wave plates [16,17], and metasurface [3,[18][19][20][21], are used to implement beam splitters. However, conventional optical components used to create beam splitters, are bulky and heavy, which leads to problems in integrating them into miniature optical circuits [22].…”
Section: Introductionmentioning
confidence: 99%
“…In various optical applications such as interferometers [4][5][6], chromatic dispersion [7,8], and optical communications [9], a beam splitter [10][11][12] plays a significant role in separating light polarization, wavelength, and power, due to their ability to split an incoming light beam into two or more separate beams. Various methods and structures, including photonic crystals [13][14][15], wave plates [16,17], and metasurface [3,[18][19][20][21], are used to implement beam splitters. However, conventional optical components used to create beam splitters, are bulky and heavy, which leads to problems in integrating them into miniature optical circuits [22].…”
Section: Introductionmentioning
confidence: 99%
“…Beam splitters play a significant role in the field of modern optical devices 1 4 The types of beam splitters can be divided into even-port beam splitter gratings, 5 , 6 odd-port beam splitter gratings, 7 10 and polarization-selective beam splitter gratings 11 , 12 . Gratings with different structures can have diverse functions under varying operating bands, 13 , 14 and researchers have been devoted to studying them 15 …”
Section: Introductionmentioning
confidence: 99%