● Nanostructures, nanomaterials, their fundamental properties and photonic applications
● 2D materials in photonics: fabrication, characterization, physics, and device applications
● Active plasmonics and plasmon-enhanced photonic devices
● Optoelectronic and photonic integration
● Microcavity lasers, nanowire lasers, and plasmonic nanolasers
● Hot electron emission and detection
● Photonic crystals, nanowires, quantum wells and quantum dots
● Organic and perovskite optoelectronics: emerging materials, devices and fundamental processes

• Optical glasses and fibers
• Crystals and fibers
• Transparent ceramics
• Optical thin films
• Organic-inorganic hybrid optical materials
• Optical nanomaterials and nanostructures

● Modeling aspects in optical measurement and metrology
● Optical methods, technology and system for inspection, characterization, testing and processing
● Advanced device，system and calibration for high precision optical measurement
● High precision measurement for biomedical and industrial application

• Astronomy, planetary and environmental science
• Applications in biology and medicine
• Applications in industry, security and inspection
• Spectroscopy and material properties
• Spectroscopy of gases, liquids and solids
• Sources, detectors and receivers
• Imaging and remote sensing
• Metamaterials structures and applications
• Devices, components and systems
• High-Field THz generation and nonlinear physics
• Ultrafast measurements
• Metrology
• THz wave radar and communications
• New materials for THz and IR applications

• Super-resolution imaging
• Computational imaging
• Advanced nonlinear imaging
• Scattering imaging
• Lensless imaging
• Polarization imaging
• High-speed imaging and applications
• X-ray and Terahertz imaging
• Deep learning for imaging
• LIDAR sensing and imaging
• Spectral imaging
• Digital holographic imaging
• 3D imaging methods
• 3D light field display
• 3D holographic display
• AR, VR, MR display
• Optical data storage materials
• High density optical storage
• Multi-dimensional optical storage
• Holographic memory
• Interferometric and diffractive methods
• Holographic and speckle techniques
• Holographic optical elements
• Metrology and profilometry
• Metasurface for imaging and display

• Fiber-optic communication systems for long-haul, metro, and access networks
• WDM, OTDM, and optical subcarrier-multiplexed technologies
• Free-space optical communications and mitigation of atmospheric effects
• Analysis and mitigation of fiber nonlinearities and other transmission impairments
• System applications of optical amplifiers and other devices
• All-optical processing in devices and networks
• Advanced optical modulation formats, coherent detection, and advanced receivers
• Digital signal processing and forward error correction techniques for optical systems
• Telecommunications applications of microwave photonics
• Optics-based network elements and architectures for routing and switching

• Fiber optic components
• Optical fiber sensing
• Specialty optical fiber
• Nonlinear effects in fibers
• Fiber photonics
• Novel fibers and materials
• Waveguide and other novel materials, simulations, and theory
• Optical waveguide devices
• New applications of optical fiber and waveguide technologies

• Biomedical spectroscopy, microscopy and imaging
• Nano/biophotonics for imaging and therapy
• Photonic therapeutics and diagnostics
• Clinical technologies and systems
• Advanced optical diagnostic technologies
• Novel optical technologies and methods
• Photon-induced trapping and actuation
• Droplet-based and micro-cavity techniques
• Integrated/Lab-Chip devices

• Physical sensing
• Electric and magnetic field sensing
• Chemical, biological and biomedical sensing
• Grating and component technologies for sensing
• Specialty optical fibers for sensing
• Photonic device technologies for sensing
• Technologies for civil and construction engineering
• Distributed, multiplexed sensing and applications
• Imaging and signal processing technologies for sensing
• Other novel concepts for photonic sensing

● Quantum communications
● Quantum computing
● Quantum metrology and quantum sensing
● Quantum interactions of light with matter
● Cold atoms and cold molecules
● Single-photon sources and detectors
● Entangled photons and other non-classical
● Quantum measurement and control
● Quantum algorithms and protocols