Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Paul Lum"'
Autor:
Giuseppe Calafiore, Alexander Koshelev, Thomas P. Darlington, Nicholas J. Borys, Mauro Melli, Aleksandr Polyakov, Giuseppe Cantarella, Frances I. Allen, Paul Lum, Ed Wong, Simone Sassolini, Alexander Weber-Bargioni, P. James Schuck, Stefano Cabrini, Keiko Munechika
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
Abstract One of the major challenges to the widespread adoption of plasmonic and nano-optical devices in real-life applications is the difficulty to mass-fabricate nano-optical antennas in parallel and reproducible fashion, and the capability to prec
Externí odkaz:
https://doaj.org/article/e551d7bb85364a4490eb7ebb6553bbd2
Autor:
Paul Lumbala Kabuyi, Gloire Mbayabo, Mamy Ngole, Aimé Lumaka Zola, Valerie Race, Gert Matthijs, Chris Van Geet, Prosper Lukusa Tshilobo, Koenraad Devriendt, Tite Minga Mikobi
Publikováno v:
eJHaem, Vol 4, Iss 3, Pp 595-601 (2023)
Abstract Background: Despite a high incidence of sickle cell anemia, hydroxyurea (HU) treatment is rarely used in the DR Congo. This study aims to assess the efficacy of HU, the incidence of side effects that may limit its use in adults and to determ
Externí odkaz:
https://doaj.org/article/dab20ddfd3a84212b5cada2b70d7092d
Publikováno v:
Materials and Structures. 49:4425-4438
Concrete construction and demolition leads to the generation of a significant amount of waste and CO2 emissions, which both have a negative impact on the environment. The use of recycled aggregate concrete (RAC) is one potential way to mitigate this
Autor:
Alexander Koshelev, Carlos Pina-Hernandez, Scott Dhuey, Stefano Cabrini, Keiko Munechika, Frances I. Allen, Giuseppe Carlo Calafiore, Paul Lum, Edward Wong, Simone Sassolini
Publikováno v:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XI.
Fabricating photonic structures directly on the edge of an optical fiber opens opportunities in telecommunication, sensing, lab-on-fiber and as a replacement for the conventional free-space optics. The main advantages are long-term stability, compact
Publikováno v:
Advances in X-Ray/EUV Optics and Components XII.
We developed a process for fabrication of ultra-precise blazed diffraction gratings for high resolution x-ray spectroscopy. The process based on nanofabrication techniques provides high fidelity for groove placement, high groove density, and perfect
Autor:
Howard A. Padmore, Patrick P. Naulleau, Nikolay A. Artemiev, Tony Warwick, Dmitriy L. Voronov, Farhad Salmassi, Paul Lum, Eric M. Gullikson
Publikováno v:
SPIE Proceedings.
A blazed diffraction grating for the EUV lithography Beamline 12.0.1 of the Advanced Light Source has been fabricated using optical direct write lithography and anisotropic wet etching technology. A variable line spacing pattern was recorded on a pho
Autor:
Giuseppe Carlo Calafiore, Simone Sassolini, Stefano Cabrini, Paul Lum, Alexander Koshelev, Keiko Munechika, Frances I. Allen, Carlos Pina-Hernandez, Ed Wong, Scott Dhuey
In this Letter we present a Fresnel lens fabricated on the end of an optical fiber. The lens is fabricated using nanoimprint lithography of a functional high refractive index material, which is suitable for mass production. The main advantage of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9c2aac10bca7a843445ec50a9218eca
Autor:
Stefano Cabrini, Frances I. Allen, Keiko Munechika, Simone Sassolini, Ed Wong, Alexander Koshelev, Paul Lum, Giuseppe Carlo Calafiore, Scott Dhuey
Integration of complex photonic structures onto optical fiber facets enables powerful platforms with unprecedented optical functionalities. Conventional nanofabrication technologies, however, do not permit viable integration of complex photonic devic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31214e999abe41653af74fb8fded9a4d
Publikováno v:
Ultrasound in Medicine and Biology, 28(5), 635-646. Elsevier Inc.
In the diagnostic frequency range, nonlinear imaging has been shown to improve image contrast and decrease artefacts. The extension of these techniques to high-frequency imaging (>15 MHz) was investigated. The second harmonic beam at 40 MHz of a high
Autor:
Paul Lum, D. L. Voronov, Patrick P. Naulleau, Farhad Salmassi, Eric M. Gullikson, Nikolay A. Artemiev, Tony Warwick, Howard A. Padmore
Publikováno v:
Voronov, Dmitriy; Warwick, Tony; Gullikson, Eric; Salmassi, Farhad; Nulleau, Patrick; Artemiev, Nikolay; et al.(2014). Variable line spacing diffraction grating fabricated by direct write lithography for synchrotron beamline applications. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/08w7k6tc
A Variable Line Spacing (VLS) diffraction grating has been fabricated using an optical direct write technique. This grating is now in use at the Advanced Light Source, in beamline 12.0.1, delivering light for EUV lithography. Direct Write Lithography