Terahertz Radiation Modulation via Magnon Gain Medium
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Solution Overview
Problem
Current methods for modulating Terahertz waves are inadequate in effectively frequency modulating THz photons generated by interactions between nonequilibrium magnons in Magnon Gain Mediums (MGMs), limiting the control and efficiency of Terahertz radiation generation.
Innovation Solution
The method involves generating Terahertz radiation by pumping nonequilibrium electrons into a Magnon Gain Medium, where the interaction between nonequilibrium magnons is modulated using either a longitudinal AC magnetic field or an AC electric field, enhancing the frequency modulation of the generated THz photons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional modulation methods are used for Terahertz waves, then the basic modulation function is achieved, but the frequency modulation efficiency and information capacity are limited
Solution Approach 1:
The patent applies parameter changes by modulating the interaction between nonequilibrium magnons through external fields (AC magnetic field or AC electric field). This changes the frequency parameter of the generated Terahertz radiation, enabling efficient frequency modulation and increasing information capacity without requiring complex modulation devices
Solution Approach 2:
The patent uses nonequilibrium magnons as an intermediary medium. By pumping nonequilibrium electrons into the Magnon Gain Medium, nonequilibrium magnons are generated and their interaction is modulated by external fields. This intermediary approach converts electron pumping into controllable Terahertz frequency modulation, simplifying the overall control mechanism while enhancing information capacity
2Power
If nonequilibrium electrons are pumped into the Magnon Gain Medium to generate Terahertz radiation, then Terahertz photons are generated through magnon interaction, but the frequency control and modulation efficiency are insufficient
Solution Approach 1:
The patent employs periodic action by applying AC magnetic fields or AC electric fields to modulate the nonequilibrium magnon interaction. The alternating fields periodically change the magnon interaction strength, which periodically modulates the generated Terahertz frequency. This periodic modulation approach enables precise frequency control while maintaining high generation efficiency
Solution Approach 2:
The patent implements dynamics by making the magnon interaction modifiable through external AC fields. The system transitions from a static magnon interaction to a dynamic, controllable interaction that can be tuned in real-time. This dynamic control enables precise frequency modulation of the Terahertz radiation while preserving the efficient generation mechanism
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
This approach allows for precise control and enhancement of Terahertz radiation frequency, increasing the information capacity in the THz spectrum by enabling efficient frequency modulation of THz waves, thereby overcoming the limitations of existing modulation techniques.
Implementation Method 1
propagation of nonequilibrium electrons in the MGM causes generation of nonequilibrium magnons
Implementation Method 2
Interaction between nonequilibrium magnons causes generation of THz photons
Implementation Method 3
The generated in the MGM nonequilibrium magnons are lasing
Implementation Method 4
frequency modulating the generated in the MGM Terahertz radiation by placing the MGM into a longitudinal AC magnetic field
Implementation Method 5
frequency modulating the generated in the MGM Terahertz radiation by applying AC electric field to the MGM
Data Source
AI summary
A method of modulation terahertz radiation comprising: (A) generating Terahertz radiation by pumping nonequilibrium electrons into a Magnon Gain Medium (MGM), wherein propagation of nonequilibrium electrons in the MGM causes generation of nonequilibrium magnons, and wherein interaction between the nonequilibrium magnons causes generation of the Terahertz radiation; and (B) frequency modulating THz radiation generated in the MGM by applying longitudinal AC magnetic field, or by applying AC electrical field bias.