Werner and Tadigadapa awarded patents

2/5/2016

Douglas Werner

Isotropic Metamaterial Lens for Magnetic Imaging Applications
U.S. Patent No. 9,140,767

Abstract: Examples of the present invention include metamaterial lenses that allow enhanced resolution imaging, for example in MRI apparatus. An example metamaterial may be configured to have μ=−1 along three orthogonal axes. Superior performance was demonstrated using such improved designs, and in some examples, imaging resolution better than λ/500 was obtained. The use of one or more lumped reactive elements in a unit cell, such as one or more lumped capacitors and/or one or more lumped inductors, allowed unit cell dimensions and hence resolution to be dramatically enhanced. In some examples, a cubic unit cell was used with an essentially isotropic magnetic permeability of μ=−1 obtained at an operating electromagnetic frequency and wavelength (λ).

Srinivas A. Tadigadapa

Methods and Apparatus for Ultra-Sensitive Temperature Detection Using Resonant Devices
U.S. Patent No. 9,121,771

Abstract: Methods, apparatus, and systems to improve thermal sensitivity of resonant circuits. One aspect utilizes tracking near-resonance complex impedance for a quartz resonator based calorimeter sensor to derive ultra-sensitive temperature measurement from the sensor. Another aspect includes a quartz resonant or -based calorimetric sensor placed close to but not touching the analyte being measured to eliminate mass loading effect on the temperature measurement.

 

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MEDIA CONTACT:

Rebekka Coakley

rac29@psu.edu

Douglas Werner

Douglas Werner

Srinivas Tadigadapa
Srinivas A. Tadigadapa

 
 

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