Results 51 to 60 of about 785 (184)

Las propiedades ópticas de prismas piramidales con aplicaciones en la generación de luz estructurada [PDF]

, 2022
This thesis presents a numerical study of the structured light produced by a laser beam transmitted by a symmetric pyramidal prism. From the Fresnel formulation, expressions are obtained for the diffracted amplitudes that are valid for an arbitrary ...
CARLOS IVAN OCHOA GUERRERO
core  

Design of polychromatic focusing optics for neutron reflectometers: rethinking REFocus optics

Journal of Applied Crystallography, Volume 59, Issue 3, Page 774-782, June 2026.
REFocus optics, employing an elliptical mirror and higher‐order reflections, enable rapid wide‐Q‐range neutron reflectometry at reactor sources, achieving up to 100‐fold faster measurements compared with conventional methods.Neutron reflectometry is a widely used non‐destructive technique for analyzing surface and interfacial structures. In this study,
Norifumi L. Yamada, Masahiro Hino, Ryuji Maruyama, Takuya Hosobata   +3 more
wiley   +1 more source

Evidence of a Biological Control over Origin, Growth and End of the Calcite Prisms in the Shells of Pinctada margaritifera (Pelecypod, Pterioidea) [PDF]

, 2014
Consistently classified among the references for calcite simple prisms, the microstructural units that form the outer layer of the Pinctada margaritifera have been investigated through a series of morphological, crystallographical and biochemical ...
Le Moullac, Gilles, Godard, P, Dauphin, Y., Virginie Chamard, Jean-pierre Cuif, Cuif, P, Dauphin, Yannicke, Alberto Perez-huerta, Moullac, Gilles, Gilles Le Moullac, Godard, Pierre, Perez-huerta, Alberto, Perez-Huerta, A., Burghammer, Manfred, Nehrke, G, Burghammer, M., Nehrke, G., Manfred Burghammer, Nehrke, Gernot, Cuif, Jean-pierre, Dauphin, Y, Le Moullac, G, Cuif, J.P., Gernot Nehrke, Pierre Godard, Perez-Huerta, A, Chamard, Virginie, Chamard, V, Yannicke Dauphin, Gilles Moullac   +29 more
core   +1 more source

Terahertz Encryption With a Polarization‐Sensitive Metasurface

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
We propose a dual‐functional terahertz encryption metasurface that enables independent information retrieval in both the near field and the far field within a single device. In the near field, polarization‐selective amplitude modulation reveals textual patterns, whereas in the far field, phase engineering encodes multiple digital data in focal‐spot ...
Yixuan He, Huan Zhao, Tong Nan, Xinke Wang, Yan Zhang   +4 more
wiley   +1 more source

Functional Hemianopsia: Identified with Fresnel Prisms and Quantitative Perimetry [PDF]

, 1995
Functional or hysterical unilateral hemianopia is extremely rare. A chiasmal or retrochiasmal lesion is usually suspected and neuroradiology studies, CT and/ or MRI, are typically ordered.
Thomas J. Carlow
core  

A Comprehensive Review of Traditional and Machine Learning‐Assisted Diffuse Optical Spectroscopy and Imaging Techniques for Dermatological Applications

Advanced Photonics Research, Volume 7, Issue 5, May 2026.
This review critically examines clinical studies on both conventional and machine learning (ML)‐integrated diffuse optical spectroscopy and imaging methods for dermatological applications, with a primary focus on the past decade and inclusion of earlier foundational work where appropriate.
Iftak Hussain, Li Xiuting, Randall Ang Jie, Keertana Vinod Ram, Mark Teo Ju Teng, Valerie Xinhui Teo, Malini Olivo, U. S. Dinish   +7 more
wiley   +1 more source

Tunable electronic lens and prisms using inhongeneous nano scale liquid crystal droplets. DIV.A [PDF]

, 2008
Using inhomogeneous sized liquid crystal (LC) droplets for lens and prisms. For forming a positive lens, the LC droplet size can gradually increase from the center to the side edges. For forming a negative lens, the LC droplet size can gradually decrease
Ren, Hongwen, Wu, Shin-Tson
core   +1 more source

Biofunctional Interface Integrated Multilayer SPR Biosensor for Precise Detection of Basal Cell Carcinoma

Electron, Volume 4, Issue 2, May 2026.
A biofunctional multilayer SPR biosensor based on CsF/TiO2/Ag/CaTiO3/BP/PEG/anti‐BerEP4 is proposed for highly sensitive and selective detection of basal cell carcinoma. The sensor demonstrates enhanced performance with high sensitivity, strong resonance characteristics, and reliable differentiation between normal and cancerous cells, supporting early ...
Raonak Karim, Nahian Montasir, Tasnim Ferdous Toha, Tabah Maimuna Momo, Md. Al Amin Islam Utshob, Maymona Binte Juwel, Khandakar Mohammad Ishtiak   +6 more
wiley   +1 more source

Tunable electronic lens and prisms using inhomogeneous nano scale liquid crystal droplets [PDF]

, 2005
Using inhomogeneous sized liquid crystal (LC) droplets for lens and prisms. For forming a positive lens, the LC droplet size can gradually increase from the center to the side edges. For forming a negative lens, the LC droplet size can gradually decrease
Ren, Hongwen, Wu, Shin-Tson
core   +1 more source

Exploring Low‐Concentrating Photovoltaic Systems and Solar Cell Solutions for Nigeria's Renewable Energy Future

Energy Science &Engineering, Volume 14, Issue 5, Page 2667-2687, May 2026.
This study explores the potential of solar PV and concentrating PV (CPV) technologies as sustainable energy solutions for Nigeria, highlighting their suitability in transitioning away from fossil fuels. By harnessing abundant solar resources, these technologies offer efficient, clean, and locally adaptable alternatives, supporting energy security ...
Sani Mohammed Lawal, Nazila Fough, Firdaus Muhammad‐Sukki, Mohd Khairul Amri Kamarudin, Nazmi Sellami   +4 more
wiley   +1 more source