Refractive Index Modulation for Optical Interference Fringe Suppression
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Solution Overview
Problem
Conventional methods for suppressing optical noise in optical spectroscopy are expensive, cumbersome, and not backwards compatible, limiting their effectiveness and applicability.
Innovation Solution
Modifying the refractive index of media within optical spectroscopy equipment components through time-dependent stimuli such as pressure and temperature modulation to alter the optical path and reduce interference fringes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional solutions are used to suppress optical noise, then optical interference fringes are reduced, but the system becomes expensive, cumbersome, and limited to current generation equipment
Solution Approach 1:
The patent applies pressure modulation to change the refractive index of the medium in the optical path, which alters the optical path length and suppresses interference fringes. This parameter change approach replaces complex mechanical or optical compensation systems with a simple pressure control mechanism, reducing device complexity while effectively reducing optical interference.
2Object-affected harmful factors
If conventional solutions are used to suppress optical noise, then optical interference fringes are reduced, but implementation cost increases significantly
Solution Approach 1:
By modulating pressure to change refractive index parameters, the system achieves fringe suppression using inexpensive pressure control components rather than expensive optical compensators or specialized equipment, significantly reducing implementation cost while maintaining effectiveness.
3Object-affected harmful factors
If conventional solutions are used to suppress optical noise, then optical interference fringes are reduced, but backwards compatibility is lost
Solution Approach 1:
The pressure modulation technique can be applied to various optical spectroscopy configurations without requiring specialized equipment designs, allowing implementation on both current and legacy systems. This parameter-based approach maintains backwards compatibility while effectively suppressing optical interference fringes.
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 simplifies noise management, enhances cost efficiency, and provides backwards compatibility by effectively suppressing optical interference fringes, thereby improving the accuracy of optical spectroscopy analysis.
Implementation Method 1
The pressure is modulated by modulating either the inlet flow or the pumping speed
Implementation Method 2
The applied stimulus includes pressure, and in an embodiment additionally temperature
Implementation Method 3
optical noise arising from optical interference between different pathways for light propagation
Implementation Method 4
modification to the refractive index of media that forms or is contained in one or more components
Data Source
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AI summary
Aspects of the disclosure include suppression of optical interference fringes in optical spectra via a modification to the refractive index of media that form or are contained in one or more components of equipment utilized for optical spectroscopy. Such a modification can yield changes in the optical path of light propagating through at least one of the media, with the ensuing changes in the spectral structure of interference between light propagating through different optical paths. In certain embodiments, the refractive index of the media that forms or is contained in one or more components can be modified via application of a time-dependent stimulus to at least one of the one or more components. The applied stimulus can include pressure, mechanical strain or stress, temperature, a combination thereof, or the like.