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A device that achieves controllable rotation of the state of polarization by rotating the orientation of the eigenmodes of a waveguide by 45$^{\circ}$ is introduced and analyzed. The device can be implemented using lossless materials on a…

Optics · Physics 2016-04-20 PoHan Chang , Charles Lin , Amr S. Helmy

In a scanning transmission electron microscope (STEM), producing a high-resolution image generally requires an electron beam focused to the smallest point possible. However, the magnetic lenses used to focus the beam are unavoidably…

Polarimetry, which is the ability to measure the scattering response of the environment across orthogonal polarizations, is fundamental to enhancing wireless communication and radar system performance. In this paper, we utilize the Zak-OTFS…

Signal Processing · Electrical Eng. & Systems 2025-10-14 Nishant Mehrotra , Sandesh Rao Mattu , Robert Calderbank

We propose a new instrumental concept for long-baseline optical single-mode interferometry using integrated optics which were developed for telecommunication. Visible and infrared multi-aperture interferometry requires many optical…

Astrophysics · Physics 2009-10-31 F. Malbet , P. Kern , I. Schanen-Duport , J. -P. Berger , K. Rousselet-Perraut

Dynamic manipulation of arbitrary light polarization is of fundamental importance for versatile optical functionalities, yet realizing such full-Poincar\'e-sphere control within compact nanophotonic architectures remains a formidable…

Polarization of photons plays a key role in quantum optics and light-matter interactions, however, it is difficult to control in nanosystems since the eigenstate of a nanophotonic cavity is usually fixed and linearly polarized. Here we…

The out-of-plane and in-plane polarization of (Pb0.6Li0.2Bi0.2)(Zr0.2Ti0.8)O3(PLBZT) thin film has studied in the dark and under illumination of a weak light source of a comparable bandgap. A highly oriented PLBZT thin film was grown on…

Materials Science · Physics 2017-06-30 Hitesh Borkar , M Tomar , Vinay Gupta , Ram S. Katiyar , J. F. Scott , Ashok Kumar

We present the first experimental implementation of a polarization-circulation speed meter. In our experiment, the interferometer was reduced to a single-cavity configuration with all mirrors fixed. A green-locking scheme was employed to…

Optical centrifuge has emerged as a promising tool for achieving centrifuge motion of particles in many fields. Herein, we report a novel optical centrifuge, as driven by optical lateral force arising from transverse phase gradient of light…

Optics · Physics 2020-11-30 Xionggui Tang , Yi Shen , Yanhua Xu

Optical beam steering is key for optical communications, laser mapping (LIDAR), and medical imaging. For these applications, integrated photonics is an enabling technology that can provide miniaturized, lighter, lower cost, and more power…

Applied Physics · Physics 2019-02-06 Carlos Errando-Herranz , Nicolas Le Thomas , Kristinn B. Gylfason

Advances in optical trapping design principles have led to tremendous progress in manipulating nanoparticles (NPs) with diverse functionalities in different environments using bulky systems. However, efficient control and manipulation of…

We have investigated the tunable lateral shift and polarization beam splitting of the transmitted light beam through electro-optic crystals, based on the Pockels effect. The positive and negative lateral shifts could be easily controlled by…

Optics · Physics 2009-03-30 Xi Chen , Ming Shen , Zhen-Fu Zhang , Chun-Fang Li

2D materials with broken inversion symmetry posses an extra degree of freedom, the valley pseudospin, that labels in which of the two energy-degenerate crystal momenta, K or K', the conducting carriers are located. It has been shown that…

Quantum Physics · Physics 2023-09-20 Rui E. F. Silva , Misha Ivanov , Álvaro Jiménez-Galán

For the quality inspection of carbon fiber sheet molding compounds, polarization imaging is a promising alternative to more established methods like computed tomography, since it is cheaper, faster, and provides a larger field-of-view. For…

Instrumentation and Detectors · Physics 2024-10-16 Miro Duhovic , Alex Keilmann , Dominic Schommer , Claudia Redenbach , Katja Schladitz

Circularly polarized light plays a key role in many applications including spectroscopy, microscopy, and control of atomic systems. Particularly in the latter, high polarization purity is often required. Integrated technologies for atomic…

Optics · Physics 2022-09-20 Leonardo Massai , Tom Schatteburg , Jonathan P. Home , Karan K. Mehta

Optical scanning is a prevalent technique for optical neural interfaces where light delivery with high spatial and temporal precision is desired. However, due to the sequential nature of point-scanning techniques, the settling time of…

We utilize the localization analysis method to precisely determine the light beam positions with the spatial separation beyond the optical diffraction limit. By such a direct spatial measurement, the associated optical setup is built to…

Instrumentation and Detectors · Physics 2018-10-11 Hoi Chun Chiu , Zhuohui Zeng , Luwei Zhao , Teng Zhao , Shengwang Du , Xian Chen

The distribution of ultra-narrow linewidth laser radiation is an integral part of many challenging metrological applications. Changes in the optical pathlength induced by environmental disturbances compromise the stability and accuracy of…

Instrumentation and Detectors · Physics 2018-07-31 Benjamin Rauf , Maria Carmen Velez Lopez , Pierre Thoumany , Marco Pizzocaro , Davide Calonico

In recent years, Laser Plasma Acceleration (LPA) has become a promising alternative to conventional RF accelerators. However, so far, it has only been theoretically shown that generating polarized LPA beams is possible. The LEAP (Laser…

Similar to light polarization that is selected by a superposition of optical basis, electron spin direction can be controlled through a superposition of spin basis. We investigate such a spin interference occurring in photoemission of the…

Materials Science · Physics 2022-03-16 Kenta Kuroda , Koichiro Yaji , Ryo Noguchi , Ayumi Harasawa , Shik Shin , Takeshi Kondo , Fumio Komori
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