Scientists / Open questions

Eli Yablonovitch

Photonic crystals; optoelectronics

15 questions

Unresolved mechanisms in the electrical detection of the spin resonance of a single electron trap in a silicon field-effect transistor (Xiao et al., 2004)
Converting near-unity internal spontaneous-emission quantum efficiency into high external efficiency in thin-film AlGaAs/GaAs/AlGaAs double heterostructures: parasitic-loss quantification, model validation, and electrical injection
Realizing and validating few-nanometre-tip nanofocusing in three-dimensionally tapered metal–insulator–metal gap plasmon waveguides
Microscopic origin and ultimate limit of surface recombination on chemically hydrogen-passivated silicon and germanium surfaces
Mode-resolved absolute-gap status, longitudinal-mode identification, and loss-limited effective permittivity of the 3D diamond wire-mesh photonic crystal
Realizing Yablonovitch's 1987 program of inhibited spontaneous emission in semiconductor devices: three-dimensional photonic band gaps overlapping the electronic band edge, defect-mode lasing, and manufacturability
Open issues in the avalanche-ionization theory of laser-induced breakdown and self-focused filaments in transparent dielectrics
Reliability of adjoint steepest-descent electromagnetic shape optimization: local optima, multi-stage 2D-to-3D approximation artifacts, and numerical validation of ultra-low-loss performance
Chemical composition, bonding mechanism, and interfacial transport of van der Waals bonded GaAs epitaxial liftoff films on arbitrary substrates
Topology versus element shape and geometry-faithful band-structure control in 3D capacitively coupled metallo-dielectric photonic crystals
Predictive, parameter-free theory and experimental realization of resonant surface-plasmon enhancement of recombination in InGaN/GaN quantum wells
Microscopic mechanisms of nonradiative recombination in electrostatically brightened monolayer transition-metal dichalcogenide semiconductors
Ergodicity delineation and absorption beyond the assumptions of statistical ray optics in textured optical media
Rigorous electromagnetic theory and absolute calibration of environment-controlled radiative recombination in optically thin GaAs/AlGaAs heterostructures
Practical optical design of luminescence-limited single-junction GaAs solar cells: how closely can real devices approach the 33.5% Shockley–Queisser limit?

Back to open problems

Unresolved mechanisms in the electrical detection of the spin resonance of a single electron trap in a silicon field-effect transistor (Xiao et al., 2004)

Converting near-unity internal spontaneous-emission quantum efficiency into high external efficiency in thin-film AlGaAs/GaAs/AlGaAs double heterostructures: parasitic-loss quantification, model validation, and electrical injection

Realizing and validating few-nanometre-tip nanofocusing in three-dimensionally tapered metal–insulator–metal gap plasmon waveguides

Microscopic origin and ultimate limit of surface recombination on chemically hydrogen-passivated silicon and germanium surfaces

Mode-resolved absolute-gap status, longitudinal-mode identification, and loss-limited effective permittivity of the 3D diamond wire-mesh photonic crystal

Realizing Yablonovitch's 1987 program of inhibited spontaneous emission in semiconductor devices: three-dimensional photonic band gaps overlapping the electronic band edge, defect-mode lasing, and manufacturability

Open issues in the avalanche-ionization theory of laser-induced breakdown and self-focused filaments in transparent dielectrics

Reliability of adjoint steepest-descent electromagnetic shape optimization: local optima, multi-stage 2D-to-3D approximation artifacts, and numerical validation of ultra-low-loss performance

Chemical composition, bonding mechanism, and interfacial transport of van der Waals bonded GaAs epitaxial liftoff films on arbitrary substrates

Topology versus element shape and geometry-faithful band-structure control in 3D capacitively coupled metallo-dielectric photonic crystals

Predictive, parameter-free theory and experimental realization of resonant surface-plasmon enhancement of recombination in InGaN/GaN quantum wells

Microscopic mechanisms of nonradiative recombination in electrostatically brightened monolayer transition-metal dichalcogenide semiconductors

Ergodicity delineation and absorption beyond the assumptions of statistical ray optics in textured optical media

Rigorous electromagnetic theory and absolute calibration of environment-controlled radiative recombination in optically thin GaAs/AlGaAs heterostructures

Practical optical design of luminescence-limited single-junction GaAs solar cells: how closely can real devices approach the 33.5% Shockley–Queisser limit?