Plasmon Wave Detection via Charged Particle Beam Deflection

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Solution Overview

Problem

Current technologies lack an effective method for electrically detecting plasmon waves and utilizing them for data communication, despite their potential for faster data transmission compared to high-frequency signals.

Innovation Solution

A plasmon wave detector is designed with a transmission line on a substrate, where a charged particle beam is deflected by changes in the magnetic and electric field around a pointed end, allowing the detector to recognize the presence and duration of plasmon waves, which can contain data signals, using techniques such as dry reactive ion etching and nano-resonant structures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If plasmon waves are used for data communication, then transmission speed is improved, but electrical detection capability is insufficient

Engineering Contradiction:
Improvetransmission speedVSAvoidelectrical detection capability
Core Design Contradiction:
SpeedVSDifficulty of detecting and measuring

Solution Approach 1:

The patent introduces a charged particle beam as an intermediary medium to detect plasmon waves. The beam interacts with the plasmon waves through electromagnetic field coupling, converting the optical signal into an measurable electrical signal that indicates the presence and duration of the plasmon wave

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional optical detection methods with a charged particle beam detection system. Instead of using photons to detect plasmons, the invention uses charged particles (electrons or ions) that interact with the plasmon electromagnetic fields, enabling electrical detection of the waves

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Difficulty of detecting and measuring

If a charged particle beam is used to detect plasmon waves, then detection capability is improved, but device complexity increases

Engineering Contradiction:
Improvedetection capabilityVSAvoiddevice complexity
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

The transmission line structure serves multiple functions: it guides the plasmon waves, generates the electromagnetic fields for detection, and interacts with the charged particle beam. This multi-functionality reduces the need for separate dedicated components for each function

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the plasmon wave guide and the detection mechanism into a single integrated transmission line structure. The pointed end of the transmission line simultaneously serves as the plasmon generation point and the detection interface for the charged particle beam

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables electrical detection and potential data communication using plasmon waves, leveraging their faster transmission capabilities by deflecting charged particle beams and providing a signal indicative of the waves' presence and duration.

Implementation Method 1

It is known to couple light onto the surface of a metal, creating a so-called plasmon wave

Methodology Applied
Scientific EffectPlasmon wave: Surface Acoustic Wave

Implementation Method 2

a beam of charged particles (denoted E in the drawing) generated by the source 106 is disrupted or deflected by a change in the magnetic and/or electric field surrounding the pointed end 104

Methodology Applied
Scientific EffectLorentz force: Lorentz Force

Data Source

PatentUS7732786B2Coupling energy in a plasmon wave to an electron beam
Publication Date: 2010.06.08 ADVANCED PLASMONICS
  • US7732786B2 patent drawing
  • US7732786B2 patent drawing
  • US7732786B2 patent drawing

AI summary

A device for coupling energy in a plasmon wave to an electron beam includes a metal transmission line having a pointed end; a generator mechanism constructed and adapted to generate a beam of charged particles; and a detector microcircuit disposed adjacent to the generator mechanism. The generator mechanism and the detector microcircuit are disposed adjacent the pointed end of the metal transmission line and wherein a beam of charged particles from the generator mechanism to the detector microcircuit electrically couples the plasmon wave traveling along the metal transmission line to the microcircuit.