Scientists / Open questions

Susumu Noda

Photonic crystals; semiconductor photonics

9 questions

Closing the theory–experiment gap in ultra-high-Q photonic double-heterostructure nanocavities: experimental realization, validation, and manufacturable integration of the predicted multi-ten-million $Q$ regime
Modal identification at the folded Gamma point and the quantitative accuracy of effective two-dimensional band models in triangular-lattice photonic-crystal surface-emitting lasers
Extending deep-learning-based optimization of ultra-high-Q photonic crystal nanocavities beyond the training regime and to experimental realization
Quantum-regime operation and lossless fast dynamic control of strong coupling between distant photonic-crystal nanocavities
Extending ion-sheath-controlled double-angled deep etching to thicker, scalable three-dimensional photonic crystals in silicon
High-Q surface-defect photonics on three-dimensional photonic crystals: realizing the projected $Q>100{,}000$ , controlling surface disorder, and efficient external coupling via the surface-mode gap
General quantitative criterion for single-mode stability of ultra-large-area photonic-crystal surface-emitting lasers under non-uniformity, and its validation in kilowatt-class scaling
Three-Dimensional Bound States in the Continuum in Finite-Area Photonic Crystal Slabs: Suppressing In-Plane Leakage by Planar Permittivity Engineering
Realizing continuous-wave GW-class brightness in scalable double-lattice photonic-crystal surface-emitting lasers: from demonstrated 1 GW cm^-2 sr^-1 to the projected 10 GW cm^-2 sr^-1 regime

Back to open problems

Closing the theory–experiment gap in ultra-high-Q photonic double-heterostructure nanocavities: experimental realization, validation, and manufacturable integration of the predicted multi-ten-million QQQ regime

Modal identification at the folded Gamma point and the quantitative accuracy of effective two-dimensional band models in triangular-lattice photonic-crystal surface-emitting lasers

Extending deep-learning-based optimization of ultra-high-Q photonic crystal nanocavities beyond the training regime and to experimental realization

Quantum-regime operation and lossless fast dynamic control of strong coupling between distant photonic-crystal nanocavities

Extending ion-sheath-controlled double-angled deep etching to thicker, scalable three-dimensional photonic crystals in silicon

High-Q surface-defect photonics on three-dimensional photonic crystals: realizing the projected Q>100,000Q>100{,}000Q>100,000, controlling surface disorder, and efficient external coupling via the surface-mode gap

General quantitative criterion for single-mode stability of ultra-large-area photonic-crystal surface-emitting lasers under non-uniformity, and its validation in kilowatt-class scaling

Three-Dimensional Bound States in the Continuum in Finite-Area Photonic Crystal Slabs: Suppressing In-Plane Leakage by Planar Permittivity Engineering

Realizing continuous-wave GW-class brightness in scalable double-lattice photonic-crystal surface-emitting lasers: from demonstrated 1 GW cm^-2 sr^-1 to the projected 10 GW cm^-2 sr^-1 regime

Closing the theory–experiment gap in ultra-high-Q photonic double-heterostructure nanocavities: experimental realization, validation, and manufacturable integration of the predicted multi-ten-million $Q$ regime

High-Q surface-defect photonics on three-dimensional photonic crystals: realizing the projected $Q>100{,}000$ , controlling surface disorder, and efficient external coupling via the surface-mode gap