Article
Optics
Hend Sroor, Chane Moodley, Valeria Rodriguez-Fajardo, Qiwen Zhan, Andrew Forbes
Summary: This approach analytically propagates light waves by decomposing the initial field into a spatial basis with known propagation characteristics, overcoming numerical artifacts and offering intuitive understanding of certain types of field propagation. The theoretical concept is compared to numerical methods and experimentally verified, showing potential as a useful tool for propagating optical fields.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2021)
Article
Mathematics, Interdisciplinary Applications
Jun-Jie Li, Hui-Cong Zhang
Summary: We study the propagation dynamics of hybrid-order Poincare (HOP) beams in a nonlocal medium with thermal nonlinearity. The existence of a HOP soliton with a certain beamwidth ratio is verified under proper power ratio. The rotation of polarization component of the HOP breather can be controlled linearly by the input power at a fixed propagation distance. The evolution regularity of the polarized rotation angle and ellipticity angle of HOP soliton and HOP breather is summarized.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Optics
Jyrki Laatikainen, Ari T. Friberg, Olga Korotkova, Tero Setala
Summary: The Poincare sphere representation of electromagnetic spectral two-point spatial coherence for fully polarized light beams is introduced. The singular-value decomposition of the cross-spectral density matrix is employed to establish a rigorous interpretation for the formalism in the context of partial polarization. The traditional polarization Poincare sphere is shown to be a limiting case of the coherence sphere. The results are expected to be useful in understanding the coherence-polarization state of optical beams in situations dealing with random light.
Article
Optics
Junhui Jia, Haolin Lin, Shenhe Fu, J. E. Gomez-correa, Zhen Li, Zhenqiang Chen, S. Chavez Cerda
Summary: The self-healing effect of structured light beams in lenslike media has been studied both theoretically and experimentally. It has been demonstrated that the self-healing in inhomogeneous media is the result of superposition of fundamental traveling waves. This work provides a new inhomogenous environment to explain the self-healing effect and is expected to deepen understanding of the physical mechanism.
Review
Optics
Andrew Forbes, Michael de Oliveira, Mark R. Dennis
Summary: Recent efforts have focused on controlling the structure of light in all its degrees of freedom and dimensions, pushing the limits of structured light and expanding its potential. Beyond traditional orbital angular momentum, two-dimensional fields, qubits and biphotons, and linear optical manipulation.
Article
Optics
Sun Rusheng, Liu Tong, Ren Yuan, Liu Zhengliang, Li Ruijian
Summary: This paper presents a method for generating arbitrary cylindrical vector vortex beams on a hybrid-order Poincare sphere using vortex half-wave plates, allowing independent manipulation of topological charge and polarization order.
ACTA OPTICA SINICA
(2022)
Article
Optics
Jiaxin Li, Xueyu Chen, Ziang Lin, Zhiqiang Xie, Yanliang He, Ying Li, Dianyuan Fan, Shuqing Chen
Summary: A polarization-independent and broadband hollow Gaussian beam (HGB) generation method is proposed and demonstrated using cascaded dielectric metasurface q-plates. This method is applicable to visible light and beneficial for fundamental research on HGBs.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Menyang Gong, Yupei Qiao, Zhonghan Fei, Yuanyuan Li, Jiehui Liu, Yiwei Mao, Aijun He, Xiaozhou Liu
Summary: This study proposed a prediction method for generating negative acoustic radiation force using non-diffractive acoustic beam, and analyzed its underlying physical mechanism. By analyzing energy flux density, the analytical region of negative radiation generated by non-diffractive beam was completely solved. This lays the foundation for realizing acoustic tweezers and designing devices that produce negative ARFs.
Article
Optics
Andrew A. Voitiv, Mark T. LusK, Mark E. Siemens
Summary: We propose and demonstrate a method for experimentally measuring the geometric phase of non-geodesic circles on any SU(2) parameter space. This phase is determined by subtracting the dynamic phase contribution from the total accumulated phase. Our approach does not require prior knowledge of the dynamic phase and can be applied to systems accessible to interferometric and projection measurements. Experimental implementations are presented for two specific cases: orbital angular momentum modes and polarization states of Gaussian beams.
Article
Optics
Kuiming Zeng, Shanshan He, Xianping Wang, Hailu Luo
Summary: A compact optical integration of dynamic phase and geometric phase is proposed to generate arbitrary vector vortex beams on a hybrid-order Poincare sphere. By applying two different technologies, dynamic and geometric phase elements are integrated into a single glass plate to simultaneously modulate the phase and polarization of light. The vector polarization is realized by the metasurface structure, while the vortex phase is generated by the spiral phase plate. Potential applications in future integrated optical devices are anticipated due to its high transmission efficiency and conversion efficiency.
Article
Physics, Multidisciplinary
Rohit Kumar, Dixith Manchaiah, Raghavan K. Easwaran
Summary: In this manuscript, the authors theoretically study the effects of two vector beams on four level closed loop atomic systems. They obtain a spatially dependent transparency for the probe vector beam based on the semiclassical model and show that the number of petals formed for probe absorption depends on the orbital angular momentum (OAM) of the beams. The absorption and dispersion of different polarized components of the probe beam are studied, highlighting the importance of the polarization state on the Higher Order Poincare Sphere (HOPS). They also analyze the effect of the interferometer phase of the vector beam on the probe beam response, showing the geometric nature of this interaction.
Article
Optics
Guangyong Zhang, Shuai Xue, Yanling Han
Summary: The temperature characteristics of the bright soliton and Gaussian beam in a photorefractive crystal circuit were numerically investigated, showing that the dynamics of the bright soliton and Gaussian beam depend strongly on the temperature of the other crystal. The full width at half maximum (FWHM) of the bright soliton increases and the center deflection decreases with the increase of the dark soliton crystal temperature; similar evolution behaviors were observed in the Gaussian beam. As the temperature of the dark soliton crystal increases, the deviation between the bright soliton and Gaussian beam becomes more obvious.
Article
Optics
Xinjian Pan, Jieying Wu, Zhili Li, Chongfu Zhang, Chunjian Deng, Zhi Zhang, Heping Wen, Qingguo Gao, Jianjun Yang, Zichuan Yi, Miao Yu, Liming Liu, Feng Chi, Pengfei Bai
Summary: This paper studies the effect of spiral phase plates on the mode purity and topological charge of Laguerre-Gaussian beams derived from modulated Gaussian beams. The results suggest that SPP modulation is suitable for generating Laguerre-Gaussian beams with low topological charge.
Article
Optics
A. Volyar, E. Abramochkin, Y. Akimova, M. Bretsko
Summary: A structured Laguerre-Gaussian beam in an optical system gains additional degrees of freedom in the form of changing the fine structure of the beam, its orbital angular momentum (OAM), and topological charge. It has been theoretically and experimentally shown that at a certain ratio between the beam waist radius and the focal length of the cylindrical lens, the beam transforms into an astigmatic-invariant one, independent of the beam's radial and azimuthal numbers. Additionally, sharp bursts occur near the OAM zero, with magnitudes significantly exceeding the initial beam's OAM and rapidly increasing with the radial number.
Article
Optics
X. L. Zheng, M. X. Hsieh, Y. F. Chen
Summary: Lissajous structured beams generated from a spherical laser cavity influenced by the birefringent effect of the laser crystal are analyzed. The birefringent effect leads to frequency degeneracies near a perfect degenerate cavity. By quantifying the emergence of Lissajous structured modes relevant to frequency degeneracies, the study provides guidance for generating structured transverse modes related to the ray-wave correspondence.
Article
Nanoscience & Nanotechnology
Maxim Mazanov, Danica Sugic, Miguel A. Alonso, Franco Nori, Konstantin Y. Bliokh
Summary: It has been discovered that light beams reflected or refracted at interfaces can exhibit novel shifts influenced by intrinsic orbital angular momentum, including longitudinal shifts that manifest as time delays. These time delays enable the realization of OAM-controlled slow and fast pulse propagation without medium dispersion, potentially impacting scattering problems involving localized vortex states carrying transverse OAM.
Correction
Physics, Multidisciplinary
Christopher D. Parmee, Mark R. Dennis, Janne Ruostekoski
COMMUNICATIONS PHYSICS
(2022)
Article
Physics, Multidisciplinary
Christopher D. Parmee, Mark R. Dennis, Janne Ruostekoski
Summary: By constructing structured light beams, particle-like topological excitations can be formed in atomic gas, providing a new experimental approach for studying topological objects.
COMMUNICATIONS PHYSICS
(2022)
Article
Multidisciplinary Sciences
Murat Yessenov, Justin Free, Zhaozhong Chen, Eric G. Johnson, Martin P. J. Lavery, Miguel A. Alonso, Ayman F. Abouraddy
Summary: In this study, the authors demonstrate an experimental strategy to sculpt the spatio-temporal spectrum of a pulsed beam by introducing arbitrary radial chirp via two-dimensional conformal coordinate transformations, resulting in propagation-invariant 'space-time' wave packets localized in all dimensions. This experimental strategy offers unprecedented flexibility in shaping the three-dimensional structure of pulsed optical fields.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Multidisciplinary
Mark R. Dennis, Teuntje Tijssen, Michael A. Morgan
Summary: This study investigates the representations of the optical Dirac equation, particularly those with a purely real-valued Hamiltonian. For Maxwell's equations, this is equivalent to the Majorana representation of the massless Dirac (Weyl) equation. Analogies are drawn between the Dirac, chiral, and Majorana representations of the Dirac and optical Dirac equations, leading to the derivation of two new optical Majorana representations. These representations are associated with the linear polarization of light and provide a means to compare electron and electromagnetic wave equations in the context of classical field theory.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2023)
Article
Optics
Luis A. Aleman-Castaneda, Sherry Yi-Ting Feng, Rodrigo Gutierrez-Cuevas, Isael Herrera, Thomas G. Brown, Sophie Brasselet, Miguel A. Alonso
Summary: This study investigates the conditions for using fluorescent beads to emulate single fluorescent molecules in the calibration of optical microscopes. It examines the differences in point spread functions (PSFs) between beads and single molecules caused by their emission patterns and sizes, and proposes methods to compensate for the size difference and improve the similarity of PSFs.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2022)
Article
Optics
Abhinandan Bhattacharjee, Shrestha Biswas, Miguel A. Alonso, Anand k. Jha
Summary: This paper studies the coherence of optical fields in terms of space, time, and polarization. The coherence theory is formulated for transverse spatial and angular coherence. In addition, a theory of coherence is formulated for the radial degree of freedom, including concepts of coherence radial width, radial quasi-homogeneity, and radial stationarity. The paper also proposes an interferometric scheme for measuring radial coherence.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2023)
Editorial Material
Optics
Miguel Alonso
Summary: In this article, Miguel Alonso, the Editor-in-Chief of Optics Letters, provides an update on the journal and discusses its criteria.
Article
Optics
Ronen Shekel, Ohad Lib, Rodrigo Gutierrez-Cuevas, Sebastien M. Popoff, Alexander Ling, Yaron Bromberg
Summary: This work demonstrates an all-fiber approach for controlling the shape and spatial correlations of photons using mechanical perturbations of the fiber. Optimizing these perturbations allows for localizing the spatial distribution of photons and enhancing the signal at the optimized spot. A similar enhancement is achieved for coupling light from a multimode fiber to a single-mode fiber.
Article
Optics
R. Gutierrez-Cuevas, D. H. J. O'Dell, M. R. Dennis, M. A. Alonso
Summary: By studying the effects of quadratic anisotropy and quartic perturbations, a simple model called the Ince oscillator is proposed, which provides analytic solutions using Ince polynomials. This model unifies various physical systems, including aberrated optical cavities and two-mode Bose-Hubbard dimers, and explains topological transitions driven by different ratios in optical and superfluid cases.
Correction
Physics, Multidisciplinary
G. W. Forbes, Miguel A. Alonso
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2023)
Proceedings Paper
Optics
Eileen Otte, Ramon Droop, Daniel Ehrmanntraut, Danica Sugic, Mark R. Dennis, Cornelia Denz
Summary: This paper studies the customization of vector light and singularities in three-dimensional space, and achieves the customization of complex polarization singularity networks using an all-digital adaptive modulation approach. Furthermore, control of the full electric field and its singularities is demonstrated by forming linked structures of polarization singularities.
OPTICAL MANIPULATION AND STRUCTURED MATERIALS CONFERENCE (OMC 2022)
(2022)
Article
Acoustics
Kevin J. Parker, Miguel A. Alonso
Summary: The free space solution to the wave equation in spherical coordinates can generate a range of useful beampatterns by adjusting several key parameters, allowing modulation and localization of axial and lateral intensity.
