Optical Sensing and Devices

Dear Colleagues,

In recent years, optical sensing has demonstrated excellent application value and significance in the fields of biomedicine, microfluidic devices, biosensor, gas sensing, and imaging technology, among others. Compared with traditional electronic sensing, it can solve issues such as noise filtering, shielding, wiring problems, etc. Optical sensing presents many potential avenues of research, including surface-enhanced Raman scattering, micro-ring resonators, photonic crystal fibres, plasmon devices, luminescent quantum dots, and more.

Optical fibre sensing is one of the most common optical-sensing techniques, and includes distributed fibre, point fraction fibre, photonic crystal fibre, fibre Bragg gratings, few-mode fibre, etc. Its advantage lies in the insulation of pressure, photoacoustic, current, and other interference, and it is used for displacement, strain, speed, current, humidity, and other physical measurements. Optical sensing can also be realised by waveguides, such as silicon slot waveguides, slab waveguides, PDMS waveguides, plasmonic waveguides, and ridge slot waveguides, among others. There are still some other methods, including photonic crystal, nanowires, nanotubes, which are suitable for various wavebands: infrared, microwave, RF, etc.

The aim of this Special Issue is to gather novel ideas and recent progress, develop advanced optical sensing techniques and research, and promote the communication of the optical sensing field. All research content related to optical sensing is welcome.

Prof. Dr. Hsiang-Chen Chui
Prof. Dr. Linxian Liu
Guest Editors

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