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Nanocircuits at Optical Frequencies

Description:

Nanoinductors, Nanocapacitors, and Nanoresistors

Inventor

Nader Engheta

Problem

Conventional electric circuit elements operate in the radio frequency (RF) domain. However, shrinking circuits down to smaller sizes presents some difficulties as the metallic elements do not behave the same way at the nanoscale. If circuit elements could be created that operate at optical frequencies, they could be made much smaller than conventional electronics. This would require nano-scale circuit elements such as resistors, capacitors, and inductors at sizes orders of magnitude smaller than today’s electronics.

 

Solution

Researchers at the University of Pennsylvania have created nanostructures that act as optical circuit elements. These nanostructures could be used for data storage and computing at scales much smaller than existing devices. The devices are fabricated using certain metals such as gold or silver that exhibit surface plasmon resonance at optical frequencies. Nanoparticles created from a combination of plasmonic (gold, silver) and non-plasmonic materials (Au2S, SiO2) can produce properties that will act as inductors, resistors, capacitors, diodes, and inverters in the optical domain. Fabrication and operation of these devices has been demonstrated at infrared wavelengths, using optical nano-circuit elements formed from an array of Silicon Nitride nanorods.

 

 

Advantages

·         Circuit elements at the nanoscale

·         Operation at optical frequencies

 

Stage of Development

·         Prototype

 

Intellectual Property

US Patents 9,008,471 & 8,284,477

 

Reference Media 

Engheta et al. (2005) Circuit Elements at Optical Frequencies: Nanoinductors, Nanocapacitors, and Nanoresistors. Physical Review Letters (95) https://arxiv.org/ftp/cond-mat/papers/0411/0411463.pdf

 

Engheta et al. (2012) Experimental realization of optical lumped nanocircuits at infrared wavelengths. Nature Materials (11) http://www.nature.com/nmat/journal/v11/n3/pdf/nmat3230.pdf

 

 

Desired partnerships

• License

 

Download PDF

 

Docket#: Q3625

 


Patent Information:
For Information, Contact:
Pamela Beatrice
Director, SEAS/SAS Licensing Group
University of Pennsylvania
215-573-4513
beatricp@upenn.edu
Inventors:
Nader Engheta
Keywords: