Results 31 to 40 of about 470,881 (224)

Spin polarized photoelectrons with unpolarized light in normal emission from Pt(110) [PDF]

, 1994
Irmer N, Frentzen F, Schmiedeskamp B, Heinzmann U. Spin polarized photoelectrons with unpolarized light in normal emission from Pt(110). Surface Science.
Irmer, N., Schmiedeskamp, B., Frentzen, F., Heinzmann, Ulrich, U. Heinzmann, B. Schmiedeskamp, F. Frentzen, N. Irmer   +7 more
core   +1 more source

Field emission of monoenergetic spin-polarized electrons [PDF]

, 1977
Baum G, Kisker E, Mahan AH, Raith W, Reihl B. Field emission of monoenergetic spin-polarized electrons. Appl.Phys. A.
Reihl, B., Mahan, A. H., Kisker, E., Raith, Wilhelm, Baum, Günter   +4 more
core   +1 more source

3D mixed finite elements for curved, flat piezoelectric structures

International Journal of Smart and Nano Materials, 2019
The Tangential-Displacement Normal-Normal-Stress (TDNNS) method is a finite element method that was originally introduced for elastic solids and later extended to piezoelectric materials.
Martin Meindlhumer, Astrid Pechstein
doaj   +1 more source

Broadband angle of arrival estimation methods in a polynomial matrix decomposition framework [PDF]

, 2013
A large family of broadband angle of arrival estimation algorithms are based on the coherent signal subspace (CSS) method, whereby focussing matrices appropriately align covariance matrices across narrowband frequency bins.
Mohamed Alrmah, Weiss, Stephan, Stephan Weiss, Mostafa Kaveh, Sangarapillai Lambotharan, McWhirter, John G., Lambotharan, Sangarapillai, Alrmah, Mohamed, Kaveh, Mostafa, John G. McWhirter, McWhirter, John, Weiss, S., Alrmah, M. A., Lambotharan, S., Kaveh, M.   +14 more
core   +3 more sources

3D Pattern Synthesis of Time-Modulated Conformal Arrays with a Multiobjective Optimization Approach

International Journal of Antennas and Propagation, 2014
This paper addresses the synthesis of the three-dimensional (3D) radiation patterns of the time-modulated conformal arrays. Due to the nature of periodic time modulation, harmonic radiation patterns are generated at the multiples of the modulation ...
Wentao Li, Yongqiang Hei, Jing Yang, Xiaowei Shi   +3 more
doaj   +1 more source

Drop‐on‐Demand Printed Negative Dielectric Anisotropy Liquid Crystal Droplets for Adaptive Complex Beam Manipulation and Assessment

Advanced Functional Materials, EarlyView.
Printed negative‐dielectric‐anisotropy liquid‐crystal droplets enable multidimensional full‐vectorial optical‐field sensing across polarization, phase, and wavelength, while also generating tunable skyrmionic‐like complex optical fields. ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and ...
Jinge Guo, Xuke Qiu, Runchen Zhang, Qihao Han, Liangyu Deng, Yishun Lu, Zimo Zhao, Mengmeng Li, Waqas Kamal, Junseok Ma, Yongge Ma, Steve J. Elston, Alfonso A. Castrejón‐Pita, Stephen M. Morris, Chao He   +14 more
wiley   +1 more source

Fourier restriction to polynomial curves I: a geometric inequality [PDF]

, 2010
We prove a Fourier restriction result for general polynomial curves in Rd. Measuring the Fourier restriction with respect to the affine arclength measure of the curve, we obtain a universal estimate for the class of all polynomial curves of bounded ...
Wright, James, Wright, J., null Spyridon Dendrinos, null James Wright, Dendrinos, Spyridon, Dendrinos, S.   +5 more
core   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh, Bharti Garg, Maximilian Black, Masoud Taleb, Nahid Talebi   +4 more
wiley   +1 more source

Note on the smallest root of the independence polynomial [PDF]

, 2013
One can define the independence polynomial of a graph G as follows. Let i(k)(G) denote the number of independent sets of size k of G, where i(0)(G) = 1. Then the independence polynomial of G is I(G,x) = Sigma(n)(k=0)(-1)(k)i(k)(G)x(k).
Csíkvári, Péter
core   +1 more source

Exceptional Electro‐Optic Coefficient Unlocked via Polarization Swaying in KNbO3 Thin Films

Advanced Functional Materials, EarlyView.
We present the largest reported electro‐optic response in any material to date, guided by a new design principle that exploits ultralow coercive field polarization swaying enabled by low‐symmetry ferroelectric phases in monoclinic KNbO3 thin films for energy‐efficient classical and quantum photonic integrated circuits. ABSTRACT The electro‐optic effect
Sankalpa Hazra, Aiden Ross, Brynn Brower, Tobias Schwaigert, Ian Reed Philippi, Albert Suceava, Himirkanti Sarkar, Muhammed Aminul Haque Chowdhury, Suchismita Sarker, Darrell G. Schlom, Long‐Qing Chen, Venkatraman Gopalan   +11 more
wiley   +1 more source