Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Tod V. Laurvick"'
Publikováno v:
2020 IEEE SENSORS.
Despite the discovery of secondary electron emission over a century ago, repeatability in secondary electron emission measurements remains challenging. This work discusses the transient effects associated with sensing low-level currents during SEY me
Autor:
Candice R. Roberts, John S. Brewer, Thomas Weber, Michael Sherburne, Tod V. Laurvick, Hengky Chandrahalim
Publikováno v:
2020 IEEE SENSORS.
A colloidal quantum dot loaded polymer coated onto the surface of a sample pre-coated with epoxy was found to linearly change photoluminescence intensity around a 611.5 nm peak while under tensile strain. This peak was the epoxy’s photoluminescence
Autor:
Thomas Weber, Candice R. Roberts, Michael Sherburne, John S. Brewer, Tod V. Laurvick, Hengky Chandrahalim
Publikováno v:
ACS applied materialsinterfaces. 12(39)
The adaptation of colloidal quantum dots loaded within a polymer for use in nondestructive testing can be used as an optical strain gauge due to the nanomaterial's strain sensing properties. In this paper, we utilized InP/ZnS colloidal quantum dots l
Autor:
Tod V. Laurvick, Ronald A. Coutu
Publikováno v:
IEEE Transactions on Components, Packaging and Manufacturing Technology. 7:345-353
This paper investigates the performance and reliability of microcontacts under low-frequency and low-amplitude ac test conditions. Current microcontact theory is based on dc tests adapted to RF applications. To help better apply dc theory to RF appli
Autor:
Tod V. Laurvick, George C. Underwood
Publikováno v:
Proceedings, Vol 2, Iss 13, p 1075 (2018)
This paper introduces a new way to detect charge using MEMS variable capacitors for extremely sensitive, room temperature electrometry. It is largely based on the electrometers introduced by Riehl et al. [1] except variable capacitance is created by
Publikováno v:
2017 IEEE National Aerospace and Electronics Conference (NAECON).
Multipactor is a critical problem in satellites and vacuum electron devices (VEDs). Described as an “avalanche” of electrons in radio frequency (RF) and microwave devices under vacuum, multipactor is caused by repeated secondary electron emission
Autor:
Patrick Kennedy, Tod V. Laurvick
Publikováno v:
2017 IEEE National Aerospace and Electronics Conference (NAECON).
The objective for this research is to determine a relationship between plasmonic grating geometries and the wavelength-dependent focus depth. This research is focused on enhancing the signal collected by infrared detectors by using a metal grating as
Autor:
Tod V. Laurvick
Publikováno v:
Additive Manufacturing Handbook ISBN: 9781315119106
This chapter discusses using 3D-printed structures to enable nanoscale research. The process of developing 3D-printed test fixtures and equipment starts just as it does with any fabrication technique—design of the prototype. Two examples of using 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a6aa869fcc18b100b5701f775f78cfe
https://doi.org/10.1201/9781315119106-21
https://doi.org/10.1201/9781315119106-21
Publikováno v:
2016 IEEE National Aerospace and Electronics Conference (NAECON) and Ohio Innovation Summit (OIS).
A significant problem for space-based systems is multipactor — an avalanche of electrons caused by repeated secondary electron emission (SEE). The consequences of multipactor range from altering the operation of radio frequency (RF) devices to perm
Autor:
Ronald A. Coutu, Tod V. Laurvick
Publikováno v:
2016 IEEE National Aerospace and Electronics Conference (NAECON) and Ohio Innovation Summit (OIS).
Commercially available laser lithography systems have been available for several years. One such system manufactured by Heidelberg Instruments can be used to produce masks for lithography or to directly pattern photoresist using either a 3 micron or