The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We discuss effects of dielectric claddings on nanoscale engineered optical nonlinearities for Si nanophotonics applications to modulation and wave mixing of optical fields.
We demonstrated the Bound State in the Continuum Surface Emitting Laser that can steer the beam with angles depending on the topology. This novel type of the topological light source operates at room temperature.
This paper discusses nanoscale engineered metal-dielectric-semiconductor resonant gain geometries confined in all three dimensions used to create a new type of nanolasers and light emitters. When these emitters are driven in a pulsed regime, dynamic hysteresis is observed and characterized.
We have designed a high quality factor cavity that is based on a bound state in the continuum and harnessed its properties to demonstrate a novel type of surface emitting laser. We have experimentally demonstrated lasing action in this compact nanophotonic laser at room temperature with a very low threshold power.
We propose a photonic cognitive motif network. The oscillating nodes of such motifs are represented by the activity of semiconductor lasers and the performance of cognitive functions is determined by competitive interaction of lasers' phases, intensity and carrier inversion rates.
The field of photonics finds applications in information technology, health care, lighting, and sensing. This chapter explores the role of nanotechnology with focus on nanophotonics in dielectric and inhomogeneous metamaterials for optical communications, computing, and information and signal processing.
Here we present a brain-inspired photonic cognitive motif network. The proposed architecture consists of semiconductor lasers that are coupled through opto-electronic feedbacks. Competitive interaction among photons and carriers in these coupled lasers leads to dynamics similar to that of many brain activities.
The integration of a photonic information processing system onto a single chip requires great research effort toward engineering metamaterials for miniaturization of the optical devices and circuits. We discuss nanoscale engineered optical nonlinearities for modulation and wave mixing of optical fields, and metal-dielectric-semiconductor nanostructures and compositions to construct nanoemitters for...
We fabricate and characterize a luminescent hyperbolic metamaterial consisting of InGaAsP/Ag multilayers. For the first time, one of the metamaterial constituents is a gain media. The hyperbolic dispersion is confirmed through the anisotropic photoluminescence, with emission strongly dependent on pump polarization.
The integration of a photonic information processing system onto a single chip requires great research effort toward engineering metamaterials for miniaturization of the optical devices and circuits. We discuss nanoscale engineered optical nonlinearities for modulation and wave mixing of optical fields, and metal-dielectric-semiconductor nanostructures and compositions to construct nanoemitters for...
We study a system of nonlinearly coupled semiconductor lasers with opto-electronic feedback loops. The lasers are coupled in a way to formulate generalized Lotka-Volterra (GLV) equations. The interaction of lasers' phases, intensity and carrier inversion rates result in complex nonlinear dynamics.
We have designed a high quality factor cavity that is based on a bound state in the continuum and harnessed its properties to demonstrate a novel type of surface emitting laser in the c-band (∼1550nm). We have experimentally demonstrated lasing action in this compact nanophotonic laser at room temperature with a very low threshold power.
Theoretical bounds for maximum likelihood sequence estimation (MLSE) for intensity modulated fiber-optic links using an integrate and dump receiver structure are derived. These bounds are used to compare performance of different modulation formats. We show that while significant performance differences exist when bit-by-bit detection is used, the performance differences between modulation formats...
Dense photonic integration requires miniaturization of materials, devices and subsystems, including passive components (e.g., engineered composite metamaterials, filters, etc.) and active components (e.g., lasers, modulators, detectors). This paper discusses passive and active devices that recently have been demonstrated in our laboratory for chip-scale integration.
The interplay of light and magnetism has been a topic of interest since the original observations of Faraday and Kerr where magnetic materials affect the light polarization. While these effects have historically been exploited to use light as a probe of magnetic materials there is increasing research on using polarized light to alter or manipulate magnetism. For instance deterministic magnetic switching...
This paper explores the role of nanotechnology with focus on nanophotonics in dielectric, metal, and semiconductor inhomogeneous composition materials, devices and subsystems for optical communications, information and signal processing, and sensing.
Composite metal-dielectric-semiconductor nanostructures are used to design, fabricate and test nanoscale resonators and nanolasers that utilize various modes confined in all three dimensions. Integration with silicon photonics material platform is also explored and experimentally validated.
This paper explores the role of nanotechnology with focus on nanophotonics in dielectric, metal, and semiconductor inhomogeneous composition materials, devices and subsystems for optical communications, information and signal processing, and sensing.
High mode confinement and modal sparsity in subwavelength metallic-plasmonic coaxial cavities enable the demonstration of continuous-wave and room-temperature lasing at telecommunication wavelengths in the smallest cavities to date.
Optics has the potential to solve some of the most exciting problems in information systems. It promises crosstalk-free interconnects with essentially unlimited bandwidth, long-distance data transmission without skew and without power- and time-consuming regeneration, miniaturization, parallelism, and efficient implementation of important algorithms such as Fourier transforms. Numerous information...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.