Integrated Photonics Research (IPR)

1. Integrated Photonic Devices and Materials

1. Novel Active and Passive Photonic Integrated Devices, including
   • Light sources
   • Modulators
   • Detectors
   • Phase shifters
   • Isolators
   • Amplifiers
   • Switches
   • Filters
   • Resonators
   • Waveguides
2. Advanced Material Platforms for Photonic Integration, including
   • III-V compound semiconductors and wide-bandgap semiconductors
   • Silicon, silicon carbide, silicon nitride and group IV semiconductors
   • Dielectrics and polymers
   • Lithium niobate and other Pockels-effect-based materials
   • Silica-based glasses and chalcogenide glasses
   • Phase change materials
   • Non-volatile materials
   • 2D materials
   • Epsilon-near-zero and near-zero-index materials
   • Materials for spatio-temporal modulation and time crystals
   • Biomimetic and bio-inspired materials
3. Novel Fabrication and Characterization Technologies for Integrated Photonics
   • Lithography and etching techniques
   • Micromachining techniques
   • Growth and deposition techniques
   • Nanoimprint and micro-transfer printing
   • Wafer and die bonding
   • Self-organized fabrication methods
   • Novel assembly, manufacturing and integration techniques
   • Heterogeneous and hybrid integration of materials and structures
   • Foundry-based fabrication for mass production
   • Linear and electro-optic waveguide characterization
   • Micro- and nano-structure characterization
   • Reliability testing
   • Packaging technologies and fiber-to-chip coupling
4. Nano- and Meta-photonic Devices
   • Topological photonic devices
   • Photonic devices with exceptional points
   • Photonic crystal devices
   • Sub-wavelength and metamaterial devices
   • Plasmonic devices
5. Device Theory, Modelling and Design
   • Machine learning and other advanced approaches for modelling and design
   • Inverse design and optimization
   • Novel device theories and physical insights

2. Applications of Photonic Integrated Circuits (PICs)

1. PICs for Classical Applications, including:
   • Telecom and datacom
   • Computing
   • LiDAR and integrated optical phased arrays
2. PICs for Quantum Computing and Communication and For Artificial Intelligence
   • Optical quantum memories and computing
   • Optical quantum communication and key distribution
   • On-chip optical trapping
   • Neuromorphic computing and optical accelerators
   • Artificial intelligence, machine learning and edge computing
3. PICs for Precision Timing and Atomic Physics
   • Modelocked lasers and frequency combs
   • Ultra-narrow linewidth oscillators
   • Optical references
4. Novel Applications of PICs
   • On-chip biochemical sensors and transducers
   • New functionalities implemented in PICs

3. Integrated Nonlinear and Quantum Optics

1. On-chip Nonlinear-optical Pulse Propagation and Nonlinear-optical Devices
   • Solitons, supercontinuum generation and frequency combs
   • Nonlinear switching, modulation, memories and logic on-chip devices
   • Nonlinear optics in devices based on novel materials including metamaterials, thin films and 2D materials
   • Nonlinear opto-mechanics
2. On-chip Nonlinear Frequency Conversion for Classical and Quantum Applications
   • Frequency comb generation
   • Harmonic generation
   • Raman and Brillouin gain
   • Frequency (up/down) conversion
   • Frequency conversion-based generation of single/entangled photons
3. On-chip Quantum Sources and Detectors
   • Quantum dots and other single-photon sources
   • Quantum state characterization including single photon detection and homo/heterodyne detection
   • Quantum transduction approaches including microwave-optical bridging and hybridization
   • Quantum opto-mechanics
   • Squeezed states generation and detection