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Photonics publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Freeform Optical Systems: Design and Applications

edited by

Xianglong Mao

and Jiadong Yu

submission deadline 30 Mar 2026 | 1 articles | Viewed by 1686 | Submission Open

Keywords: freeform optics; imaging and non-imaging; optical design; ray tracing; ultra-precision machining; single-point diamond turning; polishing; freeform component measurement; computer-generated hologram; computer-aided alignment; novel applications; other technologies related to freeform optics

(This special issue belongs to the Section Optical Interaction Science)

Laser as a Detection: From Spectral Imaging to LiDAR for Remote Sensing Applications (2nd Edition)

edited by

Jianfeng Chen

Ming Zhao

and

He Tian

submission deadline 30 Mar 2026 | 1 articles | Viewed by 519 | Submission Open

Keywords: laser detection; LiDAR; laser spectroscopy; remote sensing; optical design

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Optical Information Transmission in Turbidity and Complex Media: Challenges and Innovative Breakthroughs

edited by

Peng Zhang

Wanzhuo Ma

, Haifeng Yao and

Dongya Xiao

submission deadline 30 Mar 2026 | Viewed by 98 | Submission Open

Keywords: optical information transmission; turbid media; scattering; wavefront shaping; biomedical imaging; atmospheric aerosols; computational imaging; underwater communication

(This special issue belongs to the Section Optical Communication and Network)

Advances in Solid-State Laser Technology and Applications

edited by Zhen Qiao

submission deadline 31 Mar 2026 | 8 articles | Viewed by 9004 | Submission Open

Keywords: solid-state lasers; high-power lasers; pulsed lasers; laser materials; structured light laser; materials processing; laser medical treatment; laser metrology; information processing; quantum optics

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Advancements in Optical Metrology and Imaging

edited by Yingying Wan, Ji Tan and Gaoxu Wu

submission deadline 31 Mar 2026 | 7 articles | Viewed by 5912 | Submission Open

Keywords: optical measurement; 3D/2D imaging; computational imaging; image processing; optical inspection; deep learning and machine learning

(This special issue belongs to the Section Optical Interaction Science)

Advanced Photonic Integration Technology and Devices

edited by

Wei Du

submission deadline 31 Mar 2026 | 3 articles | Viewed by 4352 | Submission Open

Keywords: photonics integrated circuits; optoelectronics; Si photonics; hybrid integration

Advances in Laser Spectroscopy: From Fundamentals to Applications

edited by Jianing Wang,

Guolin Li

and

Qixin He

submission deadline 31 Mar 2026 | 2 articles | Viewed by 3082 | Submission Open

Keywords: laser technology; laser Raman spectroscopy; laser-induced fluorescence spectrum; absorption spectroscopy technology; laser spectral imaging; laser confocal microscopy; fiber sensing; remote sensing; atomic and molecular spectroscopy

(This special issue belongs to the Section Optical Interaction Science)

Current Research, Trends, and Prospects in Laser-Assisted Additive Printing Technology

edited by Anne-Patricia Alloncle and

Catalin-Daniel Constantinescu

submission deadline 31 Mar 2026 | 1 articles | Viewed by 1640 | Submission Open

Keywords: laser-assisted additive printing technology; laser-assisted bio-printing; laser-induced forward transfer; additive microfabrication; micro-/nano-additive structuring

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Advanced Lasers and Their Applications, 3rd Edition

edited by

Xinyao Li

, Chao-Jian He and

Song Yang

submission deadline 31 Mar 2026 | 1 articles | Viewed by 447 | Submission Open

Keywords: fiber laser; all-solid-state laser; semiconductor laser; micro/nano structure fabrication; optical sensor

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Two-Dimensional Materials for Emerging Photonics and Spintronics Applications

edited by

Saurabh Dixit

and

Vinay Sharma

submission deadline 31 Mar 2026 | Viewed by 308 | Submission Open

Keywords: two-dimensional materials; quantum photonics; quantum optics; nonlinear optics; spintronics; polariton; Moiré superlattices; light– matter interactions; metamaterials; anisotropic materials

Optical Fiber Sensors: Refractivity and Interferometric Applications

edited by Qirui Wang,

Liye Li

and

Weimin Lyu

submission deadline 31 Mar 2026 | Viewed by 284 | Submission Open

Keywords: fiber optic sensors; refractive index sensing; biosensors and detection; fiber optic interferometers; instrumentation; measurements

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Advancing Nanophotonics: Research, Innovations, and Intelligence

edited by Jietao Liu and

Haifeng Hu

submission deadline 31 Mar 2026 | Viewed by 261 | Submission Open

Keywords: nanophotonics; artificial intelligence; integrated photonics; metasurfaces; plasmonics; sensing; imaging; nonlinear optics; photonic crystals; AI-powered design

(This special issue belongs to the Section Optical Interaction Science)

Light as a Cure: Photobiomodulation and Photodynamic Therapy

edited by

Jih-Huah Wu

submission deadline 31 Mar 2026 | Viewed by 225 | Submission Open

Keywords: photobiomodulation; laser acupuncture; combined therapy; chronobiology; wearable device for PBMT; rare diseases treated with PBMT; face diagnosis; photodynamic therapy; traumatic brain injury; pain relief; inflammation reduction; enhanced healing; synergistic approach in integrative care; mind– body interventions

(This special issue belongs to the Section Biophotonics and Biomedical Optics)

Photonic Integrated Circuits: Emerging Spectra and Technologies

edited by

Chupao Lin

submission deadline 31 Mar 2026 | Viewed by 179 | Submission Open

Keywords: photonics integrated circuits; ultra-violet photonics; integrated quantum photonics; heterogeneous integration; visible photonics; sensing; imaging; nonlinear optics

Optical Thin Films: From Materials to Applications

edited by

Alexandre Botas

submission deadline 31 Mar 2026 | Viewed by 177 | Submission Open

Keywords: thin films; optical materials; optical devices; luminescence; light emission

(This special issue belongs to the Section Optoelectronics and Optical Materials)

Recent Progress in Vertical-Cavity Surface-Emitting Lasers (VCSELs)

edited by

Zhonghe Liu

, Dongyue Jin and Wei Li

submission deadline 31 Mar 2026 | Viewed by 159 | Submission Open

Keywords: VCSELs; high-speed modulation; high-power operation; high power conversion efficiency; 3D sensing

(This special issue belongs to the Section Optoelectronics and Optical Materials)

Diffractive Optics: From Fundamentals to Applications

edited by Wenli Li and Yechuan Zhu

submission deadline 31 Mar 2026 | Viewed by 148 | Submission Open

Keywords: diffractive optical elements (DOEs); metasurfaces and their imaging systems; computational optics/inverse design; nanofabrication; beam shaping/structured light; optical devices/systems integration

(This special issue belongs to the Section Optoelectronics and Optical Materials)

Photonic Innovations in Optical Coherence Tomography

edited by

Chao Xu

and Yan Li

submission deadline 31 Mar 2026 | Viewed by 143 | Submission Open

Keywords: optical coherence tomography; swept-source lasers; photonic integrated circuits; adaptive optics; OCT angiography; computational imaging; biomedical photonics; deep learning in OCT; functional OCT; multi-modal imaging

(This special issue belongs to the Section Biophotonics and Biomedical Optics)

Advances in EUV Optics: Science and Technology

edited by

Meiyi Wu

and

Runze Qi

submission deadline 31 Mar 2026 | Viewed by 100 | Submission Open

Keywords: EUV optics; lithography; mirror polishing; metrology; grating; thin films; multilayers; optical performance; synchrotron radiation; free electron lasers

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Emerging Trends in Laser Diagnostics

edited by

Peter Fjodorow

submission deadline 31 Mar 2026 | Viewed by 84 | Submission Open

Keywords: laser spectroscopy; artificial intelligence and machine learning; dual-comb spectroscopy; quantum-cascade lasers; mid-infrared and thz systems; plasma diagnostics; biomedical applications; environmental monitoring; combustion diagnostics; non-destructive testing

(This special issue belongs to the Section Optical Interaction Science)

Challenges and Opportunities in Wireless Optical Communication

edited by

Simona Riurean

and

Monica Leba

submission deadline 1 Apr 2026 | 1 articles | Viewed by 4426 | Submission Open

Keywords: wireless optical communication (WOC); visible light communication (VLC); free space optical communication (FSO); optical camera communication (OCC); Li-Fi technology and its applications; key characteristics for high data rates; non LoS and LoS Requirements; modulation techniques; hybrid RF– optical solutions

(This special issue belongs to the Section Optical Communication and Network)

Next-Generation Optical Frequency Combs and Their Photonic Applications

edited by

Yichi Zhang

submission deadline 1 Apr 2026 | 1 articles | Viewed by 736 | Submission Open

Keywords: optical frequency combs; soliton combs; microcombs; dual-comb spectroscopy; quantum frequency combs; EO comb; kerr comb; chip-scale frequency combs; spectral shaping; precision measurement; precision metrology; hyperspectral imaging; microwave generation; microresonators; noise characterization; integrated photonics

Photonics for Emerging Applications in Communication and Sensing, 2nd Edition

edited by

Guo-Wei Lu

, Zhenzhou Cheng and Ting-Hui Xiao

submission deadline 10 Apr 2026 | 6 articles | Viewed by 7559 | Submission Open

Keywords: silicon photonics; optical fiber subsystems; photonic integrated circuits; optical network technology

(This special issue belongs to the Section Optical Communication and Network)

Quantum Optics: Advances and Applications

edited by Kui Liu

submission deadline 10 Apr 2026 | Viewed by 64 | Submission Open

Keywords: the preparation and measurement of quantum light sources; quantum computing and quantum simulation; fundamental issues in quantum optics; quantum effects of interactions between light fields and matter; micro- and nano-quantum optics; quantum precision measurement and quantum sensing; quantum communication and quantum key distribution

(This special issue belongs to the Section Quantum Photonics and Technologies)

Metasurface-Based Photonic Devices and Their Applications

edited by Jingfeng Chen

submission deadline 10 Apr 2026 | Viewed by 55 | Submission Open

Keywords: metasurfaces; subwavelength resonators; beamforming; reconfigurable metasurfaces; 2D materials integration; polarization manipulation

(This special issue belongs to the Section New Applications Enabled by Photonics Technologies and Systems)

Science and Applications of Optical Fiber Sensors: Recent Advances and Future Trends

edited by Alex Dante and Quandong Huang

submission deadline 15 Apr 2026 | 7 articles | Viewed by 15961 | Submission Open

Emerging Trends in Spectral Analysis with Optical Sensors: Modern Approaches and Applications

edited by Qichang An and Hongchao Zhao

submission deadline 15 Apr 2026 | 6 articles | Viewed by 11292 | Submission Open

Keywords: fiber sensors; astrophotonics; optical instrumentation and measurements; integrated photonics; interferometers; diffraction neural network

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Advances in EUV/X-Ray Optics: Science and Applications

edited by

Paresh Chandra Pradhan

and Srikanth Panini Singam

submission deadline 15 Apr 2026 | 1 articles | Viewed by 637 | Submission Open

Keywords: mirrors for deflecting; monochromatizing; and collimating beams; diffractive optics for monochromators and spectrometers; optics focused on KB mirrors; reflective lenses; and zone plates; the design and fabrication of multilayer optics; metrological techniques

(This special issue belongs to the Section Optical Interaction Science)

Functional Metasurfaces: Metalenses, Chiral Optics, and Beyond

edited by

Hsiang-Chen Chui

submission deadline 15 Apr 2026 | Viewed by 104 | Submission Open

Keywords: functional metasurfaces; metalenses and flat optics; chiral metasurfaces and polarization control; nonlinear and quantum metasurfaces; metasurface-enabled imaging and sensing; tunable and reconfigurable metasurfaces; holography and optical information processing; metamaterials; nanophotonics

The Many Paths of Light: Unraveling Multimode Optical Fibers

edited by

Mario Zitelli

submission deadline 15 Apr 2026 | Viewed by 49 | Submission Open

Keywords: multimode/multicore fibers ; SDM ; quantum multimode transmission ; optical nonlinearity

(This special issue belongs to the Section Optical Communication and Network)

Nonlinear Optics and Hyperspectral Polarization Imaging

edited by

Rui-Pin Chen

, Yuhua Li,

Xu Yang

and Sibghat Ullah

submission deadline 20 Apr 2026 | 16 articles | Viewed by 31357 | Submission Open

Keywords: nonlinear optics; integrated optics; optical vortex; structured light; laser measurement; hyperspectral imaging; polarization imaging; laser imaging; deep learning

(This special issue belongs to the Section Optical Interaction Science)

Microwave Photonics: Advances and Applications

edited by

Hao Luo

and Jinlong Yu

submission deadline 20 Apr 2026 | 1 articles | Viewed by 434 | Submission Open

Keywords: microwave photonics; optoelectronic oscillators; photonic signal processing; integrated microwave photonic circuits; RF-over-fiber; microwave photonic filters; high-frequency signal generation; optical modulation and detection; photonic-assisted radar and sensing; wideband analog optical links

(This special issue belongs to the Section Optoelectronics and Optical Materials)

Design and Construction of Optical Systems

edited by Huanhao Li

submission deadline 20 Apr 2026 | 1 articles | Viewed by 426 | Submission Open

Keywords: optical system design; photonics; computational optics; optical manipulation; holography; optical imaging; fabrication with optics; integrated photonics

Recent Advances in Optical Metamaterials: Numerical Methods, Modeling, and AI Techniques

edited by

Yongzhi Cheng

submission deadline 20 Apr 2026 | Viewed by 67 | Submission Open

Keywords: metamaterials; metasurfaces; inverse photonic design; metamaterial-based devices; computational electromagnetics; artificial intelligence; machine learning

(This special issue belongs to the Section New Applications Enabled by Photonics Technologies and Systems)

Optical Fiber Lasers: Advances in Design, Fabrication and Applications

edited by

Huaiwei Zhang

, Zhiqiang Wang and

Xinyang Su

submission deadline 21 Apr 2026 | 1 articles | Viewed by 488 | Submission Open

Keywords: fiber lasers; fiber laser applications; optical fiber

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Emerging Technologies for Silicon Photonics and Integrated Circuits

edited by Yin Xu

submission deadline 25 Apr 2026 | 1 articles | Viewed by 1076 | Submission Open

Keywords: silicon photonics; photonic integrated circuits; electro-optic modulator; fiber-to-chip coupling; signal processing; photo-electric detector; optical material; AI algorithm; optical computing; integrated quantum photonic device

(This special issue belongs to the Section Optoelectronics and Optical Materials)

Silicon Integrated Photonics: Challenges and Opportunities

edited by

Yongjun Huang

submission deadline 25 Apr 2026 | Viewed by 241 | Submission Open

Keywords: silicon integrated photonics; heterogeneous integration; quantum technology; ultra-fast photonics; topological photonics; optical computing; AI-assisted photonic design; spin– photon interface; nonlinear dynamics; optomechanics

(This special issue belongs to the Section Optoelectronics and Optical Materials)

Optical Sensors and Devices

edited by

Zhaoyong Wang

submission deadline 30 Apr 2026 | 6 articles | Viewed by 10503 | Submission Open

Keywords: optical fiber sensor; optical spectrum; distributed fiber sensing; optical remote sensing; optical scattering; photoelectric detection

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Advances in Epsilon-Near-Zero Photonics

edited by Aleksei Anopchenko and

Howard (Ho Wai) Lee

submission deadline 30 Apr 2026 | 2 articles | Viewed by 6006 | Submission Open

Keywords: zero-index materials; epsilon-near-zero; nanophotonics; plasmonics; nonlinear optics; optical metasurfaces; metamaterials; light– matter interaction; electromagnetics

Applications and Development of Optical Fiber Sensors

edited by Haokun Yang,

Yuan Wang

, Zhe Ma, Zhenshi Sun and Rongxin Zhu

submission deadline 30 Apr 2026 | 5 articles | Viewed by 5729 | Submission Open

Keywords: optical fiber sensor; distributed sensing system; AI-driven fiber sensors; novel fiber structure; optic– electronic detection techniques; smart city fiber networks; structural health monitoring; sensing technology innovation

(This special issue belongs to the Section Optoelectronics and Optical Materials)

Application and Development of Optoelectronic Oscillators (OEOs) in Microwave Photonics

edited by

Gefeson Mendes Pacheco

and

Qidi Liu

submission deadline 30 Apr 2026 | 1 articles | Viewed by 3898 | Submission Open

Keywords: optoelectronic oscillators; optoelectronic oscillator sensors; optical RF signal processing; low phase noise; microwave photonics; and radio over fibers

(This special issue belongs to the Section New Applications Enabled by Photonics Technologies and Systems)

Nonlinear Optics and Optical Parametric Oscillators: From Fundamentals to Cutting-Edge Research

edited by Wange Song

submission deadline 30 Apr 2026 | 3 articles | Viewed by 3827 | Submission Open

Keywords: optical parametric oscillators; ultrafast optics; integrated photonics

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Advancements in Optics and Laser Measurement

edited by

Hongru Li

and

Shutong Wang

submission deadline 30 Apr 2026 | 3 articles | Viewed by 3322 | Submission Open

Keywords: optical sensing technologies; optical interferometry; 3D surface profiling; laser imaging; laser scanning and reconstruction; non-contact measurement; high-precision metrology; machine learning in optical measurement

(This special issue belongs to the Section Lasers, Light Sources and Sensors)

Advances in Metasurfaces: Novel Designs and Applications

edited by Chenxia Li

submission deadline 30 Apr 2026 | 1 articles | Viewed by 2062 | Submission Open

Keywords: metasurfaces; metamaterials; flat optics; wavefront shaping; nanophotonics; unit cell design; nanofabrication; holography; optical sensors; reconfigurable metasurfaces (or active metasurfaces)

Biomedical Photonics

edited by Chao Liu

submission deadline 30 Apr 2026 | 2 articles | Viewed by 2047 | Submission Open

Keywords: biomedical photonics; brain imaging and metabolism; two-photon microscopy; photoacoustic imaging

(This special issue belongs to the Section Biophotonics and Biomedical Optics)

Optical Communication Networks: Challenges and Opportunities

edited by

Mengyue Shi

and Zhengxuan Li

submission deadline 30 Apr 2026 | 1 articles | Viewed by 1477 | Submission Open

Keywords: optical communication networks; optical fiber communication; digital signal processing; optical passive networks

(This special issue belongs to the Section Optical Communication and Network)

Advancements in Optical Devices for Quantum Information Processing and Communication

edited by

Hua-Ying Liu

, Yajun Gao and Feng-Yu Lu

submission deadline 30 Apr 2026 | 1 articles | Viewed by 793 | Submission Open

Keywords: optical quantum information; quantum communication; quantum optical devices

(This special issue belongs to the Section Quantum Photonics and Technologies)

Emerging Terahertz Devices and Applications

edited by

Lin Chen

and Bo Fang

submission deadline 30 Apr 2026 | 2 articles | Viewed by 767 | Submission Open

Keywords: THz metamaterials; THz modulators; THz plasmonic devices; THz dielectric resonators; THz waveguides; THz spectroscopy for cancer detection; THz endoscopy; THz communication; THz radar; machine learning for THz imaging

Terahertz (THz) Science in Photonics

edited by Jiang Li, Qiwu Shi and Yanfeng Li

submission deadline 30 Apr 2026 | Viewed by 321 | Submission Open

Keywords: terahertz sources; THz detectors; THz spectroscopy; THz imaging; metamaterials and metasurfaces; time-resolved terahertz spectroscopy

Advanced Optical Imaging: Techniques and Applications

edited by Ying Ma,

Jiaji Li

and Taiqiang Dai

submission deadline 30 Apr 2026 | Viewed by 246 | Submission Open

Keywords: super-resolution microscopy; computational imaging; adaptive optics; multimodal imaging; in vivo imaging; optical biosensors; industrial inspection

Displaying special issue 151-200 on page 4 of 8.

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