Remote Index of Refraction Measurement via Backscattered Beam Analysis
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Solution Overview
Problem
Current methods for measuring index of refraction fluctuations in a medium cannot remotely sense these changes, relying on sample collection and instruments that lack the capability for remote sensing.
Innovation Solution
A method involving a first beam of optical energy focused at a medium, with a backscattered beam size indicative of index of refraction fluctuations, allowing for remote measurement through processing of the backscattered light's size and properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional instruments (optical interferometer or refractometer) are used to measure index of refraction, then measurement precision is improved, but the ability to remotely sense fluctuations is lost
Solution Approach 1:
The patent replaces traditional mechanical/optical instruments (interferometers, refractometers) with a remote sensing method using laser beams and backscattered light detection. The system uses optical energy propagation and backscattering phenomena to measure index of refraction fluctuations at a distance, eliminating the need for physical sample collection and direct contact measurement instruments.
Solution Approach 2:
The patent introduces backscattered light as an intermediary carrier to transmit information about index of refraction fluctuations from the remote medium to the measurement location. The backscattered beam size serves as a mediator that encodes the fluctuation strength information, allowing remote sensing without direct instrument contact with the medium.
2Measurement precision
If sample collection methods are used, then measurement accuracy is maintained, but productivity and response time are reduced
Solution Approach 1:
The patent replaces the mechanical process of sample collection, transport, and laboratory analysis with a remote optical measurement system. The laser beam propagates through the medium and backscattered light provides immediate measurement data, eliminating time-consuming sample handling procedures while maintaining measurement accuracy.
Solution Approach 2:
The system performs measurements in real-time as the laser beam interacts with the medium, capturing index of refraction fluctuations as they occur. This preliminary action at the source eliminates the delay inherent in collecting samples and transporting them to measurement instruments, providing immediate productivity benefits.
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 remote and accurate measurement of index of refraction fluctuations by determining the size of the backscattered beam, effectively overcoming the limitations of traditional measurement techniques.
Implementation Method 1
a second beam is backscattered towards the first location
Implementation Method 2
a first beam of optical energy is focused at a focal plane located at a second location in a medium of interest
Data Source
AI summary
A method is provided for remotely measuring index of refraction fluctuations. From a first location, an optical beam is focused at a focal plane located at a second location in a medium of interest. As a result, a beam of energy is backscattered towards the first location. At the first location, a size of the backscattered beam is determined where the size is indicative of strength of fluctuations in the medium's index of refraction.