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pro vyhledávání: '"Lakhtakia, A"'
The perturbation of a magnetostatic field by a toroid made of a homogeneous anisotropic magnetic material was formulated using the solutions of the Laplace equation in the toroidal coordinate system. That was straightforward in the region outside the
Externí odkaz:
http://arxiv.org/abs/2408.13573
Autor:
Lakhtakia, Akhlesh
The circular Bragg phenomenon is the circular-polarization-state-selective reflection of light in a spectral regime called the circular Bragg regime. In continuation of an expository review on this phenomenon published in 2014, an album of theoretica
Externí odkaz:
http://arxiv.org/abs/2407.12531
Autor:
Lakhtakia, Akhlesh
The geometric phase has acquired interest for optical devices such as achromatic phase shifters, spatial light modulators, frequency shifters, and planar lenses for wavefront engineering. Numerical work with Reusch piles with a large number of layers
Externí odkaz:
http://arxiv.org/abs/2405.10471
Autor:
Mackay, Tom G., Lakhtakia, Akhlesh
Closed-form expressions were recently derived for depolarization dyadics for truncated spheres and truncated spheroids, and the formalism was extended to truncated ellipsoids. These results were exploited to develop an implementation of the Maxwell G
Externí odkaz:
http://arxiv.org/abs/2404.17817
Autor:
Lakhtakia, Akhlesh
Publikováno v:
Physical Review A 109, 043517 (2024)
A slab made of a dielectric structurally chiral medium (DSCM) strongly reflects the co-handed circularly polarized plane wave, but not the cross-handed circularly polarized plane wave, in a spectral regime called the circular Bragg regime. The effect
Externí odkaz:
http://arxiv.org/abs/2403.16086
Autor:
Mackay, Tom G., Lakhtakia, Akhlesh
Depolarization dyadics play a central role in theoretical studies involving scattering from small particles and homogenization of particulate composite materials. Closed-form expressions for depolarization dyadics have been developed for truncated sp
Externí odkaz:
http://arxiv.org/abs/2312.08674
Publikováno v:
Clinical Endoscopy, Vol 57, Iss 5, Pp 588-594 (2024)
Endoscopic ultrasound (EUS)-guided interventions have evolved rapidly in recent years, with dedicated metal stents playing a crucial role in this process. Specifically, the invention of biflanged short metal-covered stents, including lumen-apposing m
Externí odkaz:
https://doaj.org/article/dc2b5547bbbe4289885b90aaa1e0a055
Autor:
Priscilla Lopez, Mohan Ramchandani, Sundeep Lakhtakia, Anuradha Sekaran, Pradev Inavolu, Nageshwar Reddy
Publikováno v:
Journal of Digestive Endoscopy, Vol 15, Iss 03, Pp 197-202 (2024)
Esophageal squamous cell carcinoma (SCC) is the seventh most common malignancy and the sixth leading cause of cancer-related deaths globally, demanding precise diagnostic and individualized therapeutic interventions. This case study describes the dia
Externí odkaz:
https://doaj.org/article/09a1aa68c2134c7da2ab27111be4c05b
Autor:
Faryad, Muhammad, Lakhtakia, Akhlesh
Polymer banknotes are being increasingly adopted to replace older banknotes. Since banknotes are forensically important substrates for fingermark detection and identification, we present a single-step process to enhance the visualization of fingermar
Externí odkaz:
http://arxiv.org/abs/2307.07499
CDs and DVDs are forensically important substrates for latent fingermarks. Upright columnar thin films (CTFs) grown conformally over these substrates were shown to significantly enhance the visual quality of fingermarks. Enhancement to maximum possib
Externí odkaz:
http://arxiv.org/abs/2307.00022