Optical Charge Conversion Electrometry for Deep Penetration Sensing
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Solution Overview
Problem
Traditional electrometry methods face limitations in detecting electric fields, particularly in deep samples and high-frequency applications, as they often require electrodes and electromagnetic waves, which may not provide adequate penetration or adaptability.
Innovation Solution
An electrometry system using optical charge conversion in solid-state materials, where defects in crystalline lattices are optically excited and monitored through photoluminescence to determine environmental electric fields, allowing for deep penetration and remote detection without the need for electrodes or electromagnetic waves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional electrometry methods use electrodes and electromagnetic waves for detection, then direct sensing capability is achieved, but penetration depth and adaptability to deep samples deteriorate
Solution Approach 1:
The patent introduces optical fields as an intermediary medium to indirectly sense electric fields through the interaction with defect charge states. Instead of using electrodes that physically contact the sample, the method uses optical excitation and photoluminescence detection as a mediator to probe electric fields at greater depths, resolving the contradiction between direct sensing capability and penetration depth.
Solution Approach 2:
The patent replaces the mechanical/electrical sensing system (electrodes and electromagnetic waves) with an optical system. By substituting the traditional electrometry approach with optical charge conversion and photoluminescence detection, the method achieves both deep penetration capability and electric field sensing functionality, overcoming the limitations of electrode-based methods.
2Reliability
If traditional electrometry uses electromagnetic waves for excitation and detection, then direct electric field interaction is achieved, but adaptability to high-frequency applications and deep samples deteriorates
Solution Approach 1:
The patent substitutes electromagnetic wave-based excitation and detection with optical field-based methods. By using optical excitation to prepare defect charge states and optical detection to monitor their evolution, the system achieves reliable electric field sensing with enhanced adaptability to high-frequency applications, as optical fields offer broader frequency range and better penetration characteristics.
Solution Approach 2:
The patent changes the fundamental parameters of the sensing system by transitioning from radio-frequency or microwave electromagnetic waves to optical frequencies. This parameter change enables the system to operate effectively in high-frequency applications and achieve deeper penetration into samples, while maintaining reliable electric field interaction through the optical properties of defect charge states.
3Measurement precision
If electrodes are used in traditional electrometry, then direct contact sensing is achieved, but device complexity and invasiveness increase
Solution Approach 1:
The patent replaces the complex electrode configuration system with a simplified optical system. By eliminating the need for physical electrode contacts and using optical fields for excitation and detection, the method reduces device complexity while maintaining measurement precision through non-invasive optical charge conversion and photoluminescence monitoring.
Solution Approach 2:
The patent uses optical fields as an intermediary to eliminate the need for direct electrode contact with the sample. This mediator approach simplifies the device structure by removing complex electrode configurations while still enabling precise electric field sensing through the optical interaction with defect charge states in the material.
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 enables effective sensing of electric fields across a wide frequency range, providing improved penetration and adaptability, and can be used in various applications, including bio-sensing and high-frequency device characterization.
Implementation Method 1
a first optical beam at a first optical wavelength is used to prepare the at least one defect in a first charge state
Implementation Method 2
monitoring one or more characteristics of a photoluminescence emitted during or after the conversion of the at least one defect from the first charge state to the second charge state
Data Source
AI summary
Methods and systems are disclosed for sensing an environment electric field. In one exemplary implementation, a method includes disposing a sensor in the environment, wherein the sensor comprising a crystalline lattice and at least one optically-active defect in the crystalline lattice; pre-exciting the crystalline lattice to prepare at least one defect in a first charge state using a first optical beam at a first optical wavelength; converting at least one defect from the first charge state to a second charge state using a second optical beam at a second optical wavelength; monitoring a characteristics of photoluminescence emitted from the defect during or after the conversion of the at least one defect from the first charge state to the second charge state; and determining a characteristics of the electric field in the environment according to the monitored characteristics of the photoluminescence.