Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Sigfrid Yngvesson"'
Autor:
Sigfrid Yngvesson, Jiayue Tong, Joseph C. Bardin, Matthew C. Conte, Thomas Goldstein, Jun Yan
Graphene, a single atomic layer of covalently bonded carbon atoms, has been investigated intensively for optoelectronics and represents a promising candidate for high-speed electronics. Here we present a microwave mixer constructed as an asymmetrical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::646ae66d9291968b34bc7594dd9a316f
http://arxiv.org/abs/1805.06959
http://arxiv.org/abs/1805.06959
Publikováno v:
Nano Letters. 15:5295-5301
Recent intense electrical and optical studies of graphene have pushed the material to the forefront of optoelectronic research. Of particular interest is the few terahertz (THz) frequency regime where efficient light sources and highly sensitive dete
Publikováno v:
Nanoelectronic Device Applications Handbook ISBN: 9781315216089
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff8cdd50a7b40710e1ffba8d14a44b44
https://doi.org/10.1201/b15035-39
https://doi.org/10.1201/b15035-39
Publikováno v:
Advanced Optical Materials. 2:581-587
Sensors sensitive to infrared radiation based on multiwall carbon nanotubes (MWCNTs) are prepared. The physical suspension and thermal isolation needed for bolometric sensing are achieved by suspending the MWCNTs on polymer gratings fabricated by rol
Autor:
Andrew Karellas, Stephen J. Glick, Patrick A. Kelly, Ashraf Khan, Benjamin St. Peter, Paul Siqueira, Sigfrid Yngvesson
Publikováno v:
Optical Interactions with Tissue and Cells XXVII.
The ability to discern malignant from benign tissue in excised human breast specimens in Breast Conservation Surgery (BCS) was evaluated using a prototype single frequency terahertz radiation. Terahertz (THz) images of the specimens in reflection mod
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 58:1140-1150
This paper presents a detailed study of the IF properties of phonon-cooled NbN hot electron bolometer (HEB) terahertz mixers and receivers, performed over the widest intermediate frequency range reported so far. First, a broadband technique is used t
Publikováno v:
The Journal of Physical Chemistry B. 113:8930-8940
The effect of microwave power magnitude and pulsing frequency on the synthesis enhancement of zeolites, silicoaluminophosphate SAPO-11, silicalite, and NaY, was studied. Pulsing the microwave power compared to continuous delivery at the same averaged
Publikováno v:
Microwave and Optical Technology Letters. 51:1436-1439
We report a coplanar waveguide notch filter with an integrated air-bridge, designed for operation at submillimeter wave frequencies and cryogenic temperatures. The filter is built with a planar slot-ring antenna, which is in turn loaded with a superc
Autor:
K. Sigfrid Yngvesson, Fan Lu, Murad Gharibeh, Geoffrey A. Tompsett, W. C. Conner, Scott M. Auerbach
Publikováno v:
The Journal of Physical Chemistry B. 113:12506-12520
While microwave enhancement of chemical syntheses has been demonstrated for a broad variety of chemical reactions, there is no accepted universal mechanism. Is the enhancement due to more efficient heating, to overheating, to nonuniform heating, or t
Autor:
Eric Polizzi, Sigfrid Yngvesson
Publikováno v:
Nanotechnology. 26(32)
Tomonaga-Luttinger (T-L) theory predicts collective plasmon resonances in 1-D nanostructure conductors of finite length, that vary roughly in inverse proportion to the length of the structure. In-depth quantitative understanding of such resonances wh