Yu Horie
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View article: Tunable elastic dielectric metasurface lenses
Tunable elastic dielectric metasurface lenses Open
Metasurfaces comprise an array of meta-atoms in a stretchable polymer. The dimensions and shapes of the meta-atoms and the spacing are varied to obtain desired optical properties. Any optical wavefront, for different wavelengths, illuminat…
View article: Angle multiplexed metasurfaces
Angle multiplexed metasurfaces Open
A metasurface is defined by an array of scattering elements having a U shape, where the geometrical dimensions determining the U shape are determined according to the different phase profiles that the metasurface is meant to generate in re…
View article: Dispersionless and dispersion-controlled optical dielectric metasurfaces
Dispersionless and dispersion-controlled optical dielectric metasurfaces Open
Metasurfaces comprise an array of pillars in a lattice. The dimensions of the pillars and the spacing are varied to obtain desired optical properties. The dispersionless metasurfaces can focus optical light over a broad wavelength range. S…
View article: On-chip optical filter comprising Fabri-Perot resonator structure and spectrometer
On-chip optical filter comprising Fabri-Perot resonator structure and spectrometer Open
An on-chip optical filter having Fabri-Perot resonators and a spectrometer may include a first sub-wavelength grating (SWG) reflecting layer and a second SWG reflecting layer facing each other. A plurality of Fabri-Perot resonators are for…
View article: Method of manufacturing image sensor including nanostructure color filter
Method of manufacturing image sensor including nanostructure color filter Open
A method of manufacturing an image sensor includes: preparing a sensor substrate including: a sensor layer including a photosensitive cell; and a signal line layer including lines to receive electric signals from the photosensitive cell; f…
View article: Optical Phased Array Using Guided Resonance with Backside Reflectors
Optical Phased Array Using Guided Resonance with Backside Reflectors Open
Methods and systems for controlling the phase of electromagnetic waves are disclosed. A device can consist of a guided resonance grating layer, a spacer, and a reflector. A plurality of devices, arranged in a grid pattern, can control the …
View article: Increasing efficiency of high numerical aperture metasurfaces using the\n grating averaging technique
Increasing efficiency of high numerical aperture metasurfaces using the\n grating averaging technique Open
One of the important advantages of optical metasurfaces over conventional\ndiffractive optical elements is their capability to efficiently deflect light\nby large angles. However, metasurfaces are conventionally designed using\napproaches …
View article: Wide-angular-range and high-resolution beam steering by a metasurface-coupled phased array
Wide-angular-range and high-resolution beam steering by a metasurface-coupled phased array Open
Optical beam steering has broad applications in lidar, optical communications, optical interconnects, and spatially resolved optical sensors. For high-speed applications, phased-array-based beam-steering methods are favored over mechanical…
View article: Angle-Multiplexed Metasurfaces: Encoding Independent Wavefronts in a Single Metasurface under Different Illumination Angles
Angle-Multiplexed Metasurfaces: Encoding Independent Wavefronts in a Single Metasurface under Different Illumination Angles Open
The angular response of thin diffractive optical elements is highly correlated. For example, the angles of incidence and diffraction of a grating are locked through the grating momentum determined by the grating period. Other diffractive d…
View article: Angle-multiplexed metasurfaces: encoding independent wavefronts in a\n single metasurface under different illumination angles
Angle-multiplexed metasurfaces: encoding independent wavefronts in a\n single metasurface under different illumination angles Open
The angular response of thin diffractive optical elements is highly\ncorrelated. For example, the angles of incidence and diffraction of a grating\nare locked through the grating momentum determined by the grating period. Other\ndiffractiv…
View article: Supplement 1: Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces
Supplement 1: Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces Open
Contains Sections S1 to S7, and Supplementary Figures Originally published in Optica on 20 June 2017 (optica-4-6-625)
View article: Complex wavefront engineering with disorder-engineered metasurfaces
Complex wavefront engineering with disorder-engineered metasurfaces Open
Recently, complex wavefront engineering with disordered media has demonstrated optical manipulation capabilities beyond those of conventional optics. These capabilities include extended volume, aberration-free focusing and subwavelength fo…
View article: Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces
Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces Open
Diffraction gratings disperse light in a rainbow of colors with the opposite order than refractive prisms, a phenomenon known as negative dispersion. While refractive dispersion can be controlled via material refractive index, diffractive …
View article: Controlling the sign of chromatic dispersion in diffractive optics
Controlling the sign of chromatic dispersion in diffractive optics Open
Diffraction gratings disperse light in a rainbow of colors with the opposite order than refractive prisms, a phenomenon known as negative dispersion. While refractive dispersion can be controlled via material refractive index, diffractive …
View article: Highly tunable elastic dielectric metasurface lenses (Laser Photonics Rev. 10(6)/2016)
Highly tunable elastic dielectric metasurface lenses (Laser Photonics Rev. 10(6)/2016) Open
Dielectric metasurfaces are two-dimensional structures composed of nano-scatterers that manipulate phase and polarization of optical waves with subwavelength spatial resolution, enabling ultra-thin components for free-space optics. While h…
View article: Highly tunable elastic dielectric metasurface lenses
Highly tunable elastic dielectric metasurface lenses Open
Dielectric metasurfaces are two‐dimensional structures composed of nano‐scatterers that manipulate the phase and polarization of optical waves with subwavelength spatial resolution, thus enabling ultra‐thin components for free‐space optics…
View article: High efficiency double-wavelength dielectric metasurface lenses with dichroic birefringent meta-atoms
High efficiency double-wavelength dielectric metasurface lenses with dichroic birefringent meta-atoms Open
Metasurfaces are ultrathin optical structures that manipulate optical wavefronts. Most metasurface devices which deflect light are designed for operation at a single wavelength, and their function changes as the wavelength is varied. Here …
View article: Supplement 1: Multiwavelength polarization-insensitive lenses based on dielectric metasurfaces with meta-molecules
Supplement 1: Multiwavelength polarization-insensitive lenses based on dielectric metasurfaces with meta-molecules Open
Detailed materials and methods, and simulation results and discussion of efficiency for two double wavelength gratings. Originally published in Optica on 20 June 2016 (optica-3-6-628)
View article: An optical metasurface planar camera
An optical metasurface planar camera Open
Optical metasurfaces are 2D arrays of nano-scatterers that modify optical wavefronts at subwavelength spatial resolution. They are poised to revolutionize optical design by enabling complex low cost systems where multiple metasurfaces are …
View article: Efficient dielectric metasurface collimating lenses for mid-infrared quantum cascade lasers
Efficient dielectric metasurface collimating lenses for mid-infrared quantum cascade lasers Open
Light emitted from single-mode semiconductor lasers generally has large divergence angles, and high numerical aperture lenses are required for beam collimation. Visible and near infrared lasers are collimated using aspheric glass or plasti…
View article: High resolution on-chip optical filter array based on double subwavelength grating reflectors
High resolution on-chip optical filter array based on double subwavelength grating reflectors Open
An optical filter array consisting of vertical narrow-band Fabry-Pérot (FP) resonators formed by two highly reflective high contrast subwavelength grating mirrors is reported. The filters are designed to cover a wide range of operation wav…
View article: Highly efficient polarization control using subwavelength high contrast transmitarrays
Highly efficient polarization control using subwavelength high contrast transmitarrays Open
We report efficient wave plates with different retardations and orientations of fast axes realized using transmitarrays composed of a periodic arrangement of amorphous silicon elliptical cylinders on glass. We show that novel polarization …