Dear Colleagues, Optics and photonics are among the key technologies of the 21st century and offer the potential for novel applications in areas as diverse as sensing and spectroscopy, analytics, monitoring, biomedical imaging and diagnostics, as well as optical communication technology, among others. The high degree of control over light fields that is possible today, for example, by using micro- and nanooptics together with the tremendous capabilities of modern processing and integration technology, enables new optical measurement systems with enhanced functionality and unprecedented sensitivity. Such systems are thus attractive for a wide range of applications that have been previously inaccessible and may ultimately lead to the democratization of optics and photonics. This Special Issue aims to provide an overview on some of the most advanced application areas in optics and photonics and indicate the broad potential for the future. Research articles covering novel, highly-functional, and intelligent optical systems and their applications are invited to contribute. Individual topics of interest include but are not limited to the following: Biosensors Fiber optic sensing Surface plasmon resonance sensors Optofluidic systems Distributed sensing Integrated micro- and nanooptic devices Structural health monitoring Optical analytics and metrology Medical diagnostics and monitoring Wearable optics Mode-selective fiber couplers Optics for communication technology Dr. Lourdes Shanika Alwis Dr. Kort Bremer Prof. Dr. Bernhard Wilhelm Roth Guest Editors
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