Micro/Nano Optical Sensors: Challenges and Opportunities

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E:Engineering and Technology".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 895

Special Issue Editors

Department of Optical Science and Engineering, Fudan University, Shanghai 200437, China
Interests: laser-matter interactions; laser fabrication; micro- and nano-optics/photonics; photonic or electronic integration; optofluidics

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Guest Editor
Department of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China
Interests: femtosecond laser direct writing; micro-optical components; microfluidic chips; optical waveguides

Special Issue Information

Dear Colleagues,

Micro-/Nano-scale optical sensors and actuators have led to revolutionary changes across various applications. From biomedicine to environmental monitoring, and from communication technologies to manufacturing, these sensors hold immense potential for real-time, high-sensitivity, and high-selectivity detection. However, as the scope of their applications expands, a series of challenges have also emerged that necessitate thorough exploration.

On the technological front, micro-/nano-optical sensors and actuators must surmount challenges posed by size effects, photon noise, thermal noise, and other factors to achieve higher sensitivity and precision. Simultaneously, the complexity and consistency of fabrication processes require in-depth investigation to ensure the reliable manufacturing and operation of these devices.

This Special Issue aims to bring together researchers from around the world to share their latest research findings and discoveries in the field of micro-/nano-optical sensors. We welcome submissions of various types, including fundamental research, application explorations, fabrication techniques, signal processing, reviews, etc. Through this Special Issue, we hope to comprehensively understand the current challenges in the micro-/nano-optical sensor and actuator field and explore future opportunities.

Dr. Yun-Lu Sun
Dr. Zhishan Hou
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • micro-/nano-optical devices
  • optical MEMS
  • electro-mechanical micro-systems
  • sensors and actuators
  • advanced fabrication techniques

Published Papers (1 paper)

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Research

17 pages, 6925 KiB  
Article
Analysis and Design of Fiber Microprobe Displacement Sensors Including Collimated Type and Convergent Type for Ultra-Precision Displacement Measurement
by Yisi Dong, Jinran Zhang, Chen Zhang, Haijin Fu, Wenwen Li, Wenrui Luo and Pengcheng Hu
Micromachines 2024, 15(2), 224; https://doi.org/10.3390/mi15020224 - 31 Jan 2024
Cited by 1 | Viewed by 637
Abstract
In this paper, a fiber optic microprobe displacement sensor is proposed considering characteristics of micro-Michelson interference structure and its components. The principal error of micro Fabry–Perot interferometric structure is avoided, and high-precision interferometric displacement measurement is realized. The collimated microprobe and convergent microprobe [...] Read more.
In this paper, a fiber optic microprobe displacement sensor is proposed considering characteristics of micro-Michelson interference structure and its components. The principal error of micro Fabry–Perot interferometric structure is avoided, and high-precision interferometric displacement measurement is realized. The collimated microprobe and convergent microprobe are analyzed, simulated, and designed for the purposes of measuring long-distance displacement and small spot rough surface, respectively. The core parameters of the probes’ internal components are mapped to coupling efficiency and contrast of the sensor measurements, which provides a basis for the probes’ design. Finally, simulation and experimental testing of the two probes show that the collimated probe’s working distance and converging probe’s tolerance angle can reach 40 cm and ±0.5°, respectively. The designed probes are installed in the fiber laser interferometer, and a displacement resolution of 0.4 nm is achieved. Full article
(This article belongs to the Special Issue Micro/Nano Optical Sensors: Challenges and Opportunities)
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