Results 21 to 30 of about 527,604 (294)

Fundamentals and applications of spatial dissipative solitons in photonic devices : [Chapter 6] [PDF]

open access: yes, 2009
We review the properties of optical spatial dissipative solitons (SDS). These are stable, self‐localized optical excitations sitting on a uniform, or quasi‐uniform, background in a dissipative environment like a nonlinear optical cavity.
Ackemann, Thorsten   +2 more
core   +3 more sources

Effects on the Surface and Luminescence Properties of GaAs by SF6 Plasma Passivation

open access: yesCrystals, 2018
The passivation effects of the SF6 plasma on a GaAs surface has been investigated by using the radio frequency (RF) plasma method. The RF’s power, chamber pressure, and plasma treatment time are optimized by photoluminescence (PL), atomic force ...
Yumeng Xu   +6 more
doaj   +1 more source

Photonic crystals as functional mirrors for semiconductor lasers [PDF]

open access: yes, 2008
In recent years, interest has grown in the research fields of semiconductor lasers and photonic crystals. This thesis looks at integrating photonic crystals into existing semiconductor laser technology to act as functional laser mirrors.
Moore, Stephen A.
core   +2 more sources

Chip-scale high-peak-power semiconductor/solid-state vertically integrated laser

open access: yesNature Communications, 2022
Here the authors demonstrate chip-scale high-peak-power lasers by vertical integration of semiconductor and solid state laser gain mediums to reach the same maturity level as existing semiconductor lasers, which are suitable for miniaturization and cost ...
Jianglin Yue   +11 more
doaj   +1 more source

Smart and Rapid Design of Nanophotonic Structures by an Adaptive and Regularized Deep Neural Network

open access: yesNanomaterials, 2022
The design of nanophotonic structures based on deep learning is emerging rapidly in the research community. Design methods using Deep Neural Networks (DNN) are outperforming conventional physics-based simulations performed iteratively by human experts ...
Renjie Li   +5 more
doaj   +1 more source

Microresonators for organic semiconductor and fluidic lasers [PDF]

open access: yes, 2007
This thesis describes a number of studies of microstructured optical resonators, designed with the aim of enhancing the performance of organic semiconductor lasers and exploring potential applications. The methodology involves the micro-engineering of
Vasdekis, Andreas E.
core   +2 more sources

Deep reinforcement learning empowers automated inverse design and optimization of photonic crystals for nanoscale laser cavities

open access: yesNanophotonics, 2023
Photonics inverse design relies on human experts to search for a design topology that satisfies certain optical specifications with their experience and intuitions, which is relatively labor-intensive, slow, and sub-optimal.
Li Renjie   +8 more
doaj   +1 more source

Supermode Si/III-V Lasers and Circular Bragg Lasers [PDF]

open access: yes, 2010
Semiconductor lasers are arguably the most important component in optical communications. This thesis investigates two types of semiconductor lasers that are useful in integrated optics.
Sun, Xiankai
core   +1 more source

Mid-infrared frequency combs based on semiconductor lasers

open access: yes, 2021
Frequency combs are ideal candidates to realize miniaturized spectrometers without moving parts and hence are of great interest for integrated photonics.
Strasser, Gottfried   +9 more
core   +1 more source

Advances in small lasers [PDF]

open access: yes, 2014
M.T.H was supported by an Australian Research council Future Fellowship research grant for this work. M.C.G. is grateful to the Scottish Funding Council (via SUPA) for financial support.Small lasers have dimensions or modes sizes close to or smaller than
Gather, Malte Christian   +4 more
core   +1 more source

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