We deduce by the monomode modal method the analytical expressions of the transmission and reflection Jones matrices of an infinitely conducting metallic screen periodically pierced by subwavelength holes. The study is restricted to normal incidence and to the case of neglected evanescent fields (far-field), which covers many common cases. When only one nondegenerate mode propagates in cavities, they take identical forms to those of a polarizer, with Fabry-Perot-like spectral resonant factors depending on the bigrating parameters. The isotropic or birefringent properties are then obtained when holes support two orthogonal polarization modes. This basic formalism is finally applied to design compact and efficient metallic half-wave plates.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/JOSAA.31.001226 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
PFOA, PFOS and PFHxS toxicokinetic considerations for the development of an in vivo approach for assessing PFAS relative bioavailability in soil.
Environ Int
December 2024
UniSA Clinical and Health Sciences, University of South Australia, City East Campus, 5000, Australia.
A Sprague-Dawley rat model was utilized to elucidate perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS) and perfluorohexanesulfonic acid (PFHxS) toxicokinetics with a goal of developing an in vivo approach for quantifying PFAS relative bioavailability in impacted soil. Following single dose administration (gavage) of ∼ 0.2-2000 µg kg BW of PFOA, PFOS or PFHxS, differences in PFAS blood, organ and excreta concentrations were observed over 120 h although linear dose responses were determined for area under the blood plasma time curves (AUC; PFOA, PFHxS), liver accumulation (LA: PFOS) and urinary excretion (UE; PFOA, PFHxS).
View Article and Find Full Text PDFIn September 2020, the Western United States experienced anomalously severe wildfires that resulted in carbon monoxide (CO) emissions almost three times the 2001-2019 average. In this study, we investigate the influence of wildfires on atmospheric carbon monoxide (CO) variability through a comparative analysis of observations from the Measurements of Pollution in the Troposphere (MOPITT), the Infrared Atmospheric Sounding Interferometer (IASI), and the Tropospheric Monitoring Instrument (TROPOMI). Our focus is on the North American domain, aiming to understand the differences among these products.
View Article and Find Full Text PDFSuspension electrospinning of decellularized extracellular matrix: A new method to preserve bioactivity.
Bioact Mater
November 2024
Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA.
Decellularized extracellular matrices (dECM) have strong regenerative potential as tissue engineering scaffolds; however, current clinical options for dECM scaffolds are limited to freeze-drying its native form into sheets. Electrospinning is a versatile scaffold fabrication technique that allows control of macro- and microarchitecture. It remains challenging to electrospin dECM, which has led researchers to either blend it with synthetic materials or use enzymatic digestion to fully solubilize the dECM.
View Article and Find Full Text PDFBidirectional Vectorial Holography Using Bi-Layer Metasurfaces and Its Application to Optical Encryption.
Adv Mater
November 2024
Department of Materials Science and Engineering, KAIST, Daejeon, 34141, Republic of Korea.
The field of optical systems with asymmetric responses has grown significantly due to their various potential applications. Janus metasurfaces are noteworthy for their ability to control light asymmetrically at the pixel level within thin films. However, previous demonstrations are restricted to the partial control of asymmetric transmission for a limited set of input polarizations, focusing primarily on scalar functionalities.
View Article and Find Full Text PDFHot Melt Extruded High-Dose Amorphous Solid Dispersions Containing Lumefantrine and Soluplus.
Int J Pharm
November 2024
School of Pharmacy, Queen's University Belfast, 97 Lisburn Rd, Belfast BT9 7BL, NI UK. Electronic address:
Over the last 15 years, a small number of paediatric artemisinin-based combination therapy products have been marketed. These included Riamet® and Coartem® dispersible tablets, a combination of artemether and lumefantrine, co-developed by the Medicines for Malaria Venture and Novartis. Disappointingly, patient compliance, requirement for high-fat meal, and sporadic drug dissolution behaviours following administration still result in considerable challenges for these products.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!