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Updated: May 8, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

High-sensitivity dynamical profilometry with a fiber-based composite interferometer.

Chun-Wei Chang¹, Max T Hou, I-Jen Hsu

¹Department of Physics, Chung Yuan Christian University, Chungli, Taiwan.

|August 14, 2013

Summary

This summary is machine-generated.

We developed a fiber interferometer for nanometer-scale surface profiling. Its phase-compensation mechanism ensures high-speed, high-resolution dynamical imaging, capturing cellular changes with 0.82 nm precision.

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Area of Science:

Optics and Photonics
Biomedical Imaging
Materials Science

Background:

Accurate surface profile measurements are crucial for various scientific and industrial applications.
Existing interferometry techniques often face limitations in speed, resolution, and stability due to environmental factors and component drift.
Developing advanced imaging systems is essential for observing dynamic processes at the nanoscale.

Purpose of the Study:

To propose and demonstrate a novel fiber-based composite interferometer.
To achieve nanometer-scale surface profile measurements with enhanced sensitivity and speed.
To enable high-resolution, wide-field dynamical imaging for observing biological processes.

Main Methods:

Development of a fiber-based composite interferometer.
Implementation of a phase-compensation mechanism to counteract optical delay instability and environmental perturbations.
Utilizing the system for time-lapsed dynamical imaging of biological samples.

Main Results:

Demonstrated nanometer-scale surface profile measurement sensitivity.
Achieved simultaneous compensation for optical delay instability and environmental perturbations.
Attained an axial precision of 0.82 nm.
Successfully performed high-resolution, time-lapsed dynamical imaging of onion cells during dehydration, with a frame capture rate of 75 seconds.

Conclusions:

The proposed fiber-based composite interferometer offers significant improvements in measurement sensitivity and imaging speed.
The phase-compensation mechanism effectively enhances system stability and accuracy.
The system is suitable for high-speed, high-resolution, wide-field dynamical imaging applications, particularly in observing dynamic biological processes.