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Fabrication of large area (sub 1 cm cross-section) micro-optical components in a short period of time (approximately 10 min) and with lesser number of processing steps is highly desirable and cost-effective. In the recent years, femtosecond…

We demonstrate trapping of individual rubidium (Rb) and cesium (Cs) atoms in an interleaved array of bright tweezers and dark bottle-beam traps, using a microfabricated optical element illuminated by a single laser beam and a 4F system with…

In the scatter correction for x-ray Cone Beam (CB) CT, the single-scan scheme with moving Beam Stop Array (BSA) offers reliable scatter measurement with low dose, and by using Projection Correlation based View Interpolation (PC-VI), the…

Medical Physics · Physics 2014-11-03 Hao Yan , Xuanqin Mou , Yanbo Zhang , Maria Zankl

We introduce chiral rotational spectroscopy: a new technique that enables the determination of the orientated optical activity pseudotensor components $B_{XX}$, $B_{YY}$ and $B_{ZZ}$ of chiral molecules, in a manner that reveals the…

Atomic and Molecular Clusters · Physics 2018-01-16 Robert P. Cameron , Jörg B. Götte , Stephen M. Barnett

The boundary-value problem of the reflection and transmission of a plane wave due to a slab of an electro-optic structurally chiral material (SCM) is formulated in terms of a 4x4 matrix ordinary differential equation. The SCM slab can be…

Optics · Physics 2007-05-23 A. Lakhtakia , J. A. Reyes

Preserving beam quality during the transportation of high-brightness electron beams is a significant and widespread challenge in the design of modern accelerators. The importance of this issue stems from the fact that the quality of the…

Accelerator Physics · Physics 2024-05-27 Xiuji Chen , Si Chen , Dong Wang

We propose a novel method for generating axial cosine structured light by using phase-only spatial light modulator. We implemented axial cosine structured light using holographic technique. The computer generates double concentric annular…

Optics · Physics 2020-09-08 Xianlin Song , Jianshuang Wei , Lingfang Song

A first proposal of a sparse and cellwise robust PCA method is presented. Robustness to single outlying cells in the data matrix is achieved by substituting the squared loss function for the approximation error by a robust version. The…

Computation · Statistics 2024-08-29 Pia Pfeiffer , Laura Vana-Gür , Peter Filzmoser

Truncated Conformal Space Approach (TCSA) is a highly efficient method to compute spectra, operator matrix elements and time evolution in quantum field theories defined as relevant perturbations of 1+1-dimensional conformal field theories.…

High Energy Physics - Theory · Physics 2022-05-06 D. X. Horvath , K. Hodsagi , G. Takacs

Light scattering inhibits high-resolution optical imaging, manipulation and therapy deep inside biological tissue by preventing focusing. To form deep foci, wavefront-shaping and time-reversal techniques that break the optical diffusion…

Optics · Physics 2015-06-04 Cheng Ma , Fengbo Zhou , Yan Liu , Lihong V. Wang

The coherence time of an optically trapped neutral atom is a crucial parameter for quantum technologies. We found that optical dipole traps with higher-order spatial forms inherently offer lower decoherence rates compared to those with…

Geometric phase analysis (GPA) is a widely used technique for extracting displacement and strain fields from scanning probe images. Here, we demonstrate that GPA should be implemented with caution when several fundamental lattices…

Mesoscale and Nanoscale Physics · Physics 2024-05-16 Árpád Pásztor , Ishita Pushkarna , Christoph Renner

Chirality is a fundamental concept in physics that underpins various phenomena in nonlinear optics, quantum physics, and topological photonics. Although the spin of a photon naturally brings chirality, orbital angular momentum can also…

Chiral four-wave-mixing signals are calculated using the irreducible tensor formalism. Different polarization and crossing angle configurations allow to single out the magnetic dipole and the electric quadrupole interactions. Other…

Chemical Physics · Physics 2020-07-30 Jérémy R. Rouxel , Ahmadreza Rajabi , Shaul Mukamel

Chiroptical signals, optical responses sensitive to molecular handedness, are rapidly suppressed by multiple scattering, fundamentally limiting their use in turbid media. Here we show that coupling molecular chirality to the topological…

Optics · Physics 2026-02-18 Igor Meglinski , Anton Sdobnov , Alexander Bykov

The strong chiral light-matter interaction is crucial for various important fields such as chiral optics, quantum optics, and biomedical optics, driving a quest for the extreme intrinsic chirality assisted by ultrahigh quality ($Q$-) factor…

Moving media break time-reversal symmetry and exhibit intriguing optical nonreciprocity. This nonreciprocity is usually weak due to the much lower moving speed of media relative to the speed of light. We demonstrate that strong optical…

Optics · Physics 2026-03-13 Hengzhi Li , Wanyue Xiao , Junho Jung , Hao Pan , Shubo Wang

The Emittace growth induced by Coherent Synchrotron Radiation(CSR) is an important issue when electron bunches with short bunch length and high peak current are transported in a bending magnet. In this paper, a single kick method is…

Accelerator Physics · Physics 2013-12-31 Cui Xiao-Hao , Jiao Yi , Xu Gang , Huang Xi-Yang

Bound states in the continuum (BICs), which are confined optical modes exhibiting infinite quality factors and carrying topological polarization configurations in momentum space, have recently sparked significant interest across both…

Optics · Physics 2024-07-23 Xingqi Zhao , Jiajun Wang , Wenzhe Liu , Zhiyuan Che , Xinhao Wang , C. T. Chan , Lei Shi , Jian Zi

The design of a complex phase mask (CPM) for inscribing aperiodic filters in fibers is presented. The complex structure of the mask surface relief consists of discrete aperiodic phase-steps at periodic intervals. We show that the…

Instrumentation and Methods for Astrophysics · Physics 2020-04-21 Aashia Rahman , Kalaga Madhav , Martin M. Roth
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