Results 21 to 30 of about 14,300 (240)

Modal reflectivity in finite-depth two-dimensional photonic-crystal microcavities [PDF]

open access: yes, 1998
We present finite-difference time-domain calculations of the Q factor for an optical microcavity defined by a slab waveguide and two-dimensional photonic-crystal end mirrors.
D'Urso, Brian   +5 more
core   +1 more source

Shifting beams at normal incidence via controlling momentum-space geometric phases

open access: yesNature Communications, 2021
Light beams can undergo small shifts due to interesting physical phenomena at interfaces. Here, the authors design a photonic crystal slab that enables a large lateral shift at normal incidence by engineering the light-interface interaction through the ...
Jiajun Wang   +7 more
doaj   +1 more source

Design of photonic crystal optical waveguides with single-mode propagation in the photonic bandgap [PDF]

open access: yes, 2000
The authors present a systematic method for designing dielectric-core photonic crystal optical waveguides that support only one mode in the photonic bandgap (PBG).
Adibi, A.   +4 more
core   +1 more source

Visible two-dimensional photonic crystal slab laser [PDF]

open access: yes, 2006
The authors describe the fabrication and performance of photonic crystal lasers fabricated within thin membranes of InGaP/InGaAlP quantum well material and emitting in the visible wavelength range.
Scherer, Axel   +4 more
core   +1 more source

Design Aspects in Photonic Crystal –Vertical Cavity Surface- Emitting Lasers Diode [PDF]

open access: yesEngineering and Technology Journal, 2010
The design issues for a current injection vertical cavity surface-emitting lasers (VCSEL) operating at 1550 nm is presented using photonic crystal (PC) technology.
Thaira Zakaria Al-Tayyar   +1 more
doaj   +1 more source

Microwave measurements of the photonic bandgap in a two-dimensional photonic crystal slab [PDF]

open access: yes, 2002
We have measured the photonic bandgap in the transmission of microwaves through a two-dimensional photonic crystal slab. The structure was constructed by cementing acrylic rods in a hexagonal closed-packed array to form rectangular stacks.
Chiao, R. Y.   +4 more
core   +2 more sources

Tunable optical properties of silicon-on-insulator photonic crystal slab structures [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2009
A photonic crystal slab structure with one-dimensional periodicity, obtained by preferential etching of a silicon-on-insulator wafer, is numerically investigated in 3-D.
Tasolamprou A. C.   +4 more
doaj   +1 more source

All-polymer photonic crystal slab sensor

open access: yesOptics Express, 2015
An all-polymer photonic crystal slab sensor is presented, and shown to exhibit narrow resonant reflection with a FWHM of less than 1 nm and a sensitivity of 31 nm/RIU when sensing media with refractive indices around that of water. This results in a detection limit of 4.5 × 10(-6) RIU when measured in conjunction with a spectrometer of 12 pm/pixel ...
Pétur G. Hermannsson   +7 more
openaire   +3 more sources

Complete 2π  phase control by photonic crystal slabs

open access: yesOptics Express, 2021
Photonic crystal slabs are the state of the art in the studies of the light confinement, optical wave modulating and guiding, as well as nonlinear optical response. Previous studies have shown abundant real-world implementations of photonic crystals in planar optics, metamaterials, sensors, and lasers.
Mingsen Pan   +5 more
openaire   +2 more sources

Cherenkov Emission Generated by a Modulated Source in 2D Dispersive Photonic Crystal Slabs

open access: yesAdvances in Materials Science and Engineering, 2020
This work presents a systematic numerical study of Cherenkov optical radiation generated by a modulated source that moves with uniform velocity on a two-dimensional (2D) photonic crystal (PCr) slab surface.
Erika Martínez-Sánchez   +4 more
doaj   +1 more source

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