Inventor

JOHNSON STEVEN G

US42 patents

⚠️ This page may combine multiple inventors who share the name “JOHNSON STEVEN G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JOHNSON STEVEN G

MASSACHUSETTS INST TECHNOLOGY

Mach-Zehnder interferometer using photonic band gap crystals

Photonic crystal exhibiting negative refraction without requiring a negative effective index

Optical waveguide crossings

Composite photonic crystals

Periodic dielectric structure having a complete three-dimensional photonic band gap

Shock-wave modulation and control of electromagnetic radiation

Dielectric waveguide with transverse index variation that support a zero group velocity mode at a non-zero longitudinal wavevector

Metamaterials employing photonic crystal

Shock-wave modulation and control of electromagnetic radiation

Waveguide coupling into photonic crystal waveguides

Methods and apparatus for broadband angular selectivity of electromagnetic waves

In-fiber particle generation

Efficient terahertz sources by optical rectification in photonic crystals and metamaterials exploiting tailored transverse dispersion relations

Vertically and laterally confined 3D optical coupler

Dynamically tunable photonic bandgap microcavity waveguides via mechanical lattice control

Photonic crystals: a medium exhibiting anomalous cherenkov radiation

Efficient harmonic generation and frequency conversion in multi-mode cavities

Polarization-independent optical networks in 3D photonic crystals

Radiation-free optical cavity

Nano-electromechanical high-index contrast

Nonlinear harmonic generation and devices in doubly-resonant Kerr cavities

OMNIGUIDE COMM

Electromagnetic mode conversion in photonic crystal multimode waveguides

High index-contrast fiber waveguides and applications

High index-contrast fiber waveguides and applications

Photonic crystal optical waveguides having tailored dispersion profiles

Low-loss photonic crystal waveguide having large core radius

Electromagnetic mode conversion in photonic crystal multimode waveguides

Low-loss photonic crystal waveguide having large core radius

Optical waveguide monitoring

High index-contrast fiber waveguides and applications

Optical waveguide monitoring

SEARCH AMERICA INC

Method and apparatus for assessing credit for healthcare patients

Method and apparatus for assessing credit for healthcare patients

OMNIGUIDE INC

Photonic crystal waveguides and systems using such waveguides

JOHNSON STEVEN G

Method and apparatus for assessing credit for healthcare patients

GOELL JAMES

Photonic crystal fibers having a preferred bending plane and systems that use such fibers

UNIV CORNELL

Controlled inter-mode cross-talk in optical waveguides

RODRIGUEZ ALEJANDRO

Multi-mode cavities for high-efficiency nonlinear wavelength conversion formed with overlap optimization

CELANOVIC IVAN

Thermophotovoltaic energy generation

X DEV LLC

System and method for efficient parallel execution of physical simulations

BRAVO-ABAD JORGE

Efficient terahertz sources based on difference-frequency generation in triply-resonant photonic resonators

FARJADPOUR ARDAVAN

Zero group-velocity modes in chalcogenide holey photonic crystal fibers