Journal ArticleDOI
Generalized phase diffraction gratings with tailored intensity.
TLDR
The generation of continuous phase masks designed to generate a set of target diffraction orders with defined relative intensity weights is reported, and the same phase map is extended to other phase patterns such as vortex generating/sensing gratings.Abstract:
We report the generation of continuous phase masks designed to generate a set of target diffraction orders with defined relative intensity weights. We apply a previously reported analytic calculation that requires resolving a single equation with a set of parameters defining the target diffraction orders. Then the same phase map is extended to other phase patterns such as vortex generating/sensing gratings. Results are demonstrated experimentally with a parallel-aligned spatial light modulator.read more
Citations
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Journal ArticleDOI
Highly Efficient Broadband Multiplexed Millimeter-Wave Vortices from Metasurface-Enabled Transmit-Arrays of Subwavelength Thickness
TL;DR: In this paper, the authors leverage geometric phases due to spin-to-orbital interaction and tailored subwavelength transmit-arrays to enable highly efficient creation of broadband multiple vortex beams, free from normal-mode background interference.
Journal ArticleDOI
A Single Noninterleaved Metasurface for High‐Capacity and Flexible Mode Multiplexing of Higher‐Order Poincaré Sphere Beams
Zhi Hao Jiang,Lei Kang,Taiwei Yue,He-Xiu Xu,Yuanjie Yang,Yuanjie Yang,Zhongwei Jin,Changyuan Yu,Wei Hong,Douglas H. Werner,Cheng-Wei Qiu +10 more
TL;DR: A noninterleaved vortex multiplexing approach is proposed, which utilizes superimposed scattered waves with opposite spin states emanating from all meta-atoms in a coherent manner, counter-intuitively enabling ultrahigh-capacity, high-efficiency, and flexible generation of massive vortex beams with structured state-of-polarization.
Journal ArticleDOI
Generalized diffractive optical elements with asymmetric harmonic response and phase control
Jorge Albero,Jeffrey A. Davis,Don M. Cottrell,Charles E. Granger,Kyle R. McCormick,Ignacio Moreno +5 more
TL;DR: A phase lookup table is determined that can be used for any situation where a first-order (blazed) diffractive element is modified to produce higher orders with desired intensity and/or phase relation.
Journal ArticleDOI
Diffraction gratings generating orders with selective states of polarization.
Jeffrey A. Davis,Ignacio Moreno,María del Mar Sánchez-López,Katherine Badham,Jorge Albero,Don M. Cottrell +5 more
TL;DR: This work proposes specially designed double anisotropic polarization diffraction gratings capable of producing a selective number of diffraction orders and with selective different states of polarization.
Journal ArticleDOI
Tailoring a complex perfect optical vortex array with multiple selective degrees of freedom
Hao Wang,Shiyao Fu,Chunqing Gao +2 more
TL;DR: Combined phase-only holograms to produce sophisticated POV arrays that are dynamically controllable multi-ring, TC, eccentricity, size, and the number of optical vortices (OVs) are proposed.
References
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Journal Article
A practical algorithm for the determination of phase from image and diffraction plane pictures
TL;DR: In this article, an algorithm is presented for the rapid solution of the phase of the complete wave function whose intensity in the diffraction and imaging planes of an imaging system are known.
Journal ArticleDOI
A revolution in optical manipulation
TL;DR: This research presents the next generation of single-beam optical traps, which promise to take optical tweezers out of the laboratory and into the mainstream of manufacturing and diagnostics and even become consumer products.
Journal ArticleDOI
High-efficiency in-line multiple imaging by means of multiple phase holograms
H. Dammann,K. Görtler +1 more
TL;DR: In this article, a fully transparent optical component called a multiple phase hologram is inserted into a conventional optical imaging system by means of this artificial hologram, which in fact is a two-dimensional phase grating with a special groove shape.
Journal ArticleDOI
Computer generation of optimal holograms for optical trap arrays
TL;DR: A new iterative algorithm for obtaining optimal holograms targeted to the generation of arbitrary three dimensional structures of optical traps is proposed, leading to unprecedented efficiency and uniformity in trap light distributions.
Journal ArticleDOI
The Poynting vector in Laguerre-Gaussian laser modes
Miles J. Padgett,L. Allen +1 more
TL;DR: In this article, it was shown that the rotation of the Poynting vector of a Laguerre-Gaussian laser mode is proportional to the Gouy phase and for most cases of interest, rotates through less than one revolution in reaching the far field.
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