Methods and apparatus for terahertz wave amplitude modulation

Patent

Description

A wave amplitude modulator for modulating a transmitted electromagnetic wave includes one or multiple self-gated capacitively coupled pair(s) of electron layers such as semiconductor or semimetal layers. Two electrical contacts are placed to each layer of electrons of the self-gated pair(s), and a power source is electrically connected to them. The power source, by varying the voltage applied between layers of electrons, tunes the electron density thereof, thereby adjusting the optical conductivity thereof, and the change in the optical conductivity of the layers of electrons causes an amplitude modulation of the transmitted electromagnetic wave passing through the capacitively coupled layers of electrons.

Attributes

Attribute NameValues
Title
  • Methods and apparatus for terahertz wave amplitude modulation

Patent Number
  • US 8836446 B2

USPTO Link
Inventor
  • Berardi Sensale-Rodriguez

  • Huili (Grace) Xing

  • Rusen Yan

  • Michelle M. Kelly

  • Tian Fang

  • Debdeep Jena

  • Lei Liu

Inventor From Local Institution
  • Berardi Sensale-Rodriguez

  • Huili Xing

  • Rusen Yan

  • Michelle M. Kelly

  • Tian Fang

  • Debdeep Jena

  • Lei Liu

Other Application
  • 13/529,934

Prior Publication Date
  • 2013-12-26

Prior Publication Number
  • US 20130342279 A1

Claims
  • 17

Classification (US Patent)
  • 332/179; 257/14

Cooperative Patent Classification codes
  • H03C 7/00 (20130101); H03C 1/02 (20130101)

International Patent Classification codes
  • H03C 1/02 (20060101)

Language
  • English

Date Issued
  • 2014-09-16

Publisher
  • U.S. Patent and Trademark Office

Assignee
  • University of Notre Dame du Lac

Record Visibility and Access Public
Content License
  • All rights reserved

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