Pawan K Baheti,Mark A Neifeld
Pawan K Baheti
We present an information-theoretic adaptive feature-specific imaging (AFSI) system for a M-class recognition task. The proposed system utilizes the recently developed task-specific information (TSI) framework to incorporate the knowledge f...
Resolution-enhanced optical coherence tomography based on classical intensity interferometry [0.03%]
基于经典强度干涉仪的分辨率增强型光学相干断层扫描技术
Hanna Lajunen,Víctor Torres-Company,Jesús Lancis et al.
Hanna Lajunen et al.
We propose a fourth-order interference scheme for optical coherence tomography operating with broadband incoherent (or quasi-incoherent) light. It is shown that using this proposal, an axial resolution improvement by a factor of sqrt 2 and ...
Zernike radial slope polynomials for wavefront reconstruction and refraction [0.03%]
用于波前重建和折射的泽尼克径向斜率多项式
Jayoung Nam,Larry N Thibos,D Robert Iskander
Jayoung Nam
Ophthalmic wavefront sensors typically measure wavefront slope, from which wavefront phase is reconstructed. We show that ophthalmic prescriptions (in power-vector format) can be obtained directly from slope measurements without wavefront r...
Effect of target localization on the sensitivity of a localized surface plasmon resonance biosensor based on subwavelength metallic nanostructures [0.03%]
基于亚波长金属纳米结构的局域表面等离激元生物传感器的目标定位对敏感度的影响研究
Kyung Min Byun,Seong Min Jang,Sung June Kim et al.
Kyung Min Byun et al.
A localized surface plasmon resonance (LSPR) biosensor using surface relief nanostructures was investigated to evaluate the importance of target localization on the sensitivity enhancement. The LSPR device was modeled as periodic metallic n...
Application of signal-subspace and optimization methods in reconstructing extended scatterers [0.03%]
信号子空间及优化方法在扩展散射器重建中的应用研究
Xudong Chen
Xudong Chen
A signal-subspace approach to reconstruct the permittivities of extended scatterers in two-dimensional settings is proposed. A portion of the scatterers' information is retrieved by the signal-subspace method, and the remaining part is obta...
Marcel Teschke,Stefan Sinzinger
Marcel Teschke
We present a novel mathematical approach to describe phase contrast imaging. The approach is applied to analyze the interferometric phase contrast technique and phase contrast methods, which are based on spatial filtering of the undiffracte...
Samuel T Thurman,James R Fienup
Samuel T Thurman
The effect of a uniform measurement bias, due to background light, stray light, detector dark current, or detector offset, on phase retrieval wavefront sensing algorithms is analyzed. Simulation results indicate that the root-mean-square er...
Intensity spectra after first-order dispersion of composite models of scalar cyclostationary light [0.03%]
复合模型的标量循环平稳光的一阶色散后的强度谱研究
Carlos R Fernández-Pousa
Carlos R Fernández-Pousa
The spectrum of the intensity of dispersed waves obeying cyclostationary statistics is studied. The formalism is based on an exact formula by Marshall and Yariv [IEEE Photon. Technol. Lett.12, 302 (2000)] relating the intensity spectrum aft...
Dynamic evolution of an edge dislocation through aligned and misaligned paraxial optical ABCD systems [0.03%]
沿轴和偏离轴的ABCD光学系统中位错的动态演化过程研究
Hongwei Yan,Baida Lü
Hongwei Yan
The closed-form propagation expressions of an edge dislocation nested in a general elliptical Gaussian beam through aligned and misaligned paraxial optical ABCD systems are derived and used to study the dynamic evolution behavior of the edg...
Alexander B Samokhin,Aleksey N Simonov,Michiel C Rombach
Alexander B Samokhin
An approximate analytical expression is derived for the two-dimensional incoherent optical transfer function (OTF) of an imaging system invariant to second-order aberrations. The system broadband behavior resulting from a third-order phase ...