Photon Generator Using Frequency Comb and Nanoplasmonic Technology
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Solution Overview
Problem
Conventional sensor measurement technologies lack the accuracy and frequency stability required for precise optical measurements, particularly in biosensors and surface plasmon resonance (SPR) sensors, due to the sensitivity of surface plasmon phenomena to refractive index changes and environmental factors.
Innovation Solution
A photon generator is developed that combines a frequency comb generator with a surface plasmon resonance generator, utilizing a nanohole array film and an atomic clock for frequency stabilization, enabling the induction of surface plasmons with high accuracy and stability by locking the optical frequency to an atomic clock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional sensor measurement technologies are used, then device complexity is reduced, but measurement precision and frequency stability deteriorate
Solution Approach 1:
The patent combines frequency comb technology with surface plasmon resonance sensor technology into an integrated system. The frequency comb generator provides multiple stable frequency lines that are coupled with the SPR sensor, merging two complex technologies to achieve high-precision measurements that neither could achieve alone independently.
Solution Approach 2:
The patent introduces an intermediary system that couples the frequency comb output to the SPR sensor through a controlled optical path. This intermediary mechanism includes optical components and coupling structures that translate the frequency comb's stable frequencies into enhanced SPR sensor responses, thereby improving measurement precision without directly exposing the sensor to the full complexity of the frequency comb generation.
2Measurement precision
If surface plasmon resonance is used for sensing, then sensitivity to refractive index changes is improved, but frequency stability deteriorates due to environmental factors
Solution Approach 1:
The patent implements a feedback mechanism where the frequency comb provides reference frequency lines that are locked to the SPR resonance frequencies. The system continuously monitors the SPR resonance conditions and uses the frequency comb's stable lines as a reference to maintain frequency stability, compensating for environmental disturbances through active feedback control.
Solution Approach 2:
The patent changes the operating parameters of the SPR sensor by using multiple discrete frequency lines from the frequency comb instead of a continuous broadband source. This parameter change allows selective excitation at specific frequencies that are optimized for both sensitivity and stability, reducing the impact of environmental factors on frequency drift.
3Stability of the object's composition
If frequency comb technology is applied, then frequency stability is improved, but device complexity increases
Solution Approach 1:
The patent makes the frequency comb technology multi-functional by using it both as a stable frequency reference and as the actual excitation source for the SPR sensor. This universal application eliminates the need for separate reference frequency sources and sensor excitation sources, reducing overall system complexity despite the advanced technology employed.
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 significantly enhances the accuracy and stability of sensor measurements, maintaining frequency comb properties through photon-surface plasmon conversion and reducing noise effects, thereby improving performance in biosensors and SPR sensors.
Implementation Method 1
a frequency comb generator configured to generate a frequency comb of a predetermined frequency band
Implementation Method 2
a controller configured to perform frequency locking for frequency stabilization of an optical frequency generated by the frequency comb generator
Implementation Method 3
a surface plasmon resonance generator configured to generate a surface plasmon resonance state of the frequency comb
Data Source
AI summary
Provided is a photon generator. The photon generator includes a frequency comb generator configured to generate a frequency comb of a predetermined frequency band, and a controller configured to perform frequency locking for frequency stabilization of an optical frequency generated by the frequency comb generator.