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Related Experiment Video

Updated: Jun 12, 2026

Fabrication of Silica Ultra High Quality Factor Microresonators

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Published on: July 2, 2012

Integrating sphere designs with isotropic throughput.

K A Snail, L M Hanssen

|June 16, 2010

Summary

This summary is machine-generated.

This study addresses nonideal behavior in integrating spheres used for diffuse reflectometry. New designs using nonimaging concentrators minimize errors from detector field of view, beam ports, and baffles for improved measurements.

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Area of Science:

Optical Engineering
Metrology

Background:

Integrating spheres are crucial for diffuse reflectometry.
Nonideal factors like detector field of view (FOV), beam port, and baffles can cause anisotropic throughput, affecting measurement accuracy.

Purpose of the Study:

To analyze sources of nonideal behavior in integrating spheres.
To propose designs minimizing errors in diffuse reflectometry.

Main Methods:

Analysis of FOV, beam port, and baffle effects on sphere throughput.
Design of three integrating sphere configurations using nonimaging concentrators.
Development of a technique to measure beam port errors.

Main Results:

Identified FOV, beam port, and baffles as key sources of nonisotropic throughput.
Proposed sphere designs that minimize FOV-related errors.
Presented a method for quantifying beam port errors and strategies for baffle perturbation reduction.

Conclusions:

Optimized integrating sphere designs can significantly reduce measurement errors.
Minimizing nonideal behaviors enhances the accuracy and reliability of diffuse reflectance measurements.