Design and Fabrication of Diffractive Optical Elements with MATLAB

Anand, Vijayakumar; Bhattacharya, Subhashish

doi:10.1117/3.2261461

Cited by 42 publications

(41 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From this new study, a standard can be reached to decide on the number of phase levels necessary for generating an OAM mode accurately. For a general phase element such as a grating or a Fresnel zone plate, it is well-known from the previous studies that the efficiency can be traded off with a much simpler fabrication procedure involving only two-phase levels [46]. From this study, it is seen that a symmetric phase configuration involving two phase levels is not suitable for generation of a fundamental OAM mode with m = 1 and requires at least three phase levels (n = 3) to obtain a Poynting vector map demonstrating the presence of OAM.…”

Section: Discussionmentioning

confidence: 99%

Generation of structured light by multilevel orbital angular momentum holograms

et al. 2019

View full text Add to dashboard Cite

Structured light has been created by a myriad of near-and far-field techniques and has found both classical and quantum applications. In the case of orbital angular momentum (OAM), continuous spiral phase patterns in dynamic or geometric phase are often employed with the phase patterns existing across the entire transverse plane. Here we exploit the uncertainty relation between OAM and angle to create structured OAM fields using multilevel OAM holograms. We show theoretically and experimentally that only a multilevel angular phase contour in the near-field is needed to create structured OAM light in the far-field, exploiting the reciprocal nature of angular momentum and angle. We use this approach to demonstrate exotic 3D structured light control to show the evolution of the Poynting vector in such fields and to highlight the physics underlying this phenomenon.

show abstract

Section: Discussionmentioning

confidence: 99%

Generation of structured light by multilevel orbital angular momentum holograms

et al. 2019

View full text Add to dashboard Cite

show abstract

“…For some applications, it is sufficient to modulate only one parameter such as amplitude or phase, whereas in other cases it is desirable to simultaneously modulate one or more parameters to produce an optical beam with particular structure. 43…”

Section: Generation Of Optical Beams Carrying Orbital Angular Momentummentioning

confidence: 99%

“…It should be noted that the binarizing procedure decomposes the incoming field into its Fourier components in the Fourier plane resulting in the generation of several orders. 43 In the case of the SPP, the higher orders have higher topological charge values. This means that the efficiency (the fraction of power that goes into forming the desired beam) is poor.…”

Section: Generation Using Blazed and Diffractive Optical Elementsmentioning

confidence: 99%

Generation and decomposition of scalar and vector modes carrying orbital angular momentum: a review

et al. 2019

Self Cite

View full text Add to dashboard Cite

Orbital angular momentum (OAM), one of the most recently discovered degrees of freedom of light beam field has fundamentally revolutionized optical physics and its technological capabilities. Optical beams with OAM have enabled a large variety of applications, including super-resolution imaging, optical trapping, classical and quantum optical communication, and quantum computing, to mention a few. To enable these and several other emerging applications, optical beams with OAM have been generated using a variety of methods and technologies, such as a simple astigmatic lens pair, one-/two-dimensional holographic optical elements, threedimensional spiral phase plates, optical fibers, and recent entrants such as metasurfaces. All these techniques achieve spatial light modulation and can be implemented with either passive elements or active devices, such as liquid crystal on silicon and digital micromirror devices. Many of these devices and technologies are not only used for the generation of amplitude phase-polarization structured light beams but are also capable of analyzing them. We have attempted to encompass a wide variety of such technologies as well as a few emerging methodologies, broadly categorized into generation and detection protocols. We address the needs of scientists and engineers who desire to generate/detect OAM modes and are looking for the technique (active or passive) best suited for their application. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

show abstract

“…The designs of the diffractive optical elements are simulated based on the iterative Fouriertransform algorithm (IFTA) method, which is commonly applied to beam shaping design for coherent optical sources, such as, lasers [4] [5]. The basic principle of the IFTA method is shown in the flowchart in Figure 2.…”

Section: (A) Phase Profile Constructionmentioning

confidence: 99%

72‐4: Design of Diffractive Optical Element for Laser Phosphor Lighting with Uniform Illumination without Zero‐Order Effect

Lin

Tsuei

et al. 2019

Symp Digest of Tech Papers

View full text Add to dashboard Cite

Hot spot issues are critical for the performance of laser phosphor lighting systems owing to the high energy concentration of laser beam focusing, which will easily damage the phosphor plate. We present a novel algorithm to efficiently suppress the zero-order diffraction with high acceptable tolerances during DOE fabrication. Author KeywordsDiffractive optical element (DOE); laser phosphor lighting system; uniform illumination; zero-order suppression; iterative Fouriertransform algorithm (IFTA); scalar diffraction theory.

show abstract

Design and Fabrication of Diffractive Optical Elements with MATLAB

Cited by 42 publications

References 43 publications

Generation of structured light by multilevel orbital angular momentum holograms

Generation of structured light by multilevel orbital angular momentum holograms

Generation and decomposition of scalar and vector modes carrying orbital angular momentum: a review

72‐4: Design of Diffractive Optical Element for Laser Phosphor Lighting with Uniform Illumination without Zero‐Order Effect

Contact Info

Product

Resources

About