Mário F. S. Ferreira
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View article: New occurrences of Dasyprocta nigriclunis expands species distribution in Caatinga, northeast Brazil
New occurrences of Dasyprocta nigriclunis expands species distribution in Caatinga, northeast Brazil Open
The boundaries between Dasyprocta species are still in debate and the distribution of agoutis is also uncertain, especially at Caatinga, northeast Brazil, where both D. prymnolopha and D. nigriclunis exists and there are discordances in sy…
View article: Roadmap on specialty optical fibers
Roadmap on specialty optical fibers Open
Optical fibers, long an enabling technology for telecommunications, are proving to play a central role in a growing number of modern applications, starting from high speed broad band internet to medical surgery and entering across the enti…
View article: Impact of the Higher-Order Reactive Nonlinearity on High-Amplitude Dissipative Solitons
Impact of the Higher-Order Reactive Nonlinearity on High-Amplitude Dissipative Solitons Open
In this work, the impact of the higher-order reactive nonlinearity on very high-amplitude solitons of the cubic–quintic complex Ginzburg–Landau equation is investigated. These high amplitude pulses were found in a previous work in the norm…
View article: Roadmap on optical sensors
Roadmap on optical sensors Open
Optical sensors and sensing technologies are playing a more and more important role in our modern world. From micro-probes to large devices used in such diverse areas like medical diagnosis, defence, monitoring of industrial and environmen…
View article: A new class of specialty optical fibers based on a novel material composition of the doping host for the study of optical amplification
A new class of specialty optical fibers based on a novel material composition of the doping host for the study of optical amplification Open
Chapter 1 describes the fabrication of erbium-doped specialty optical fibers based on alumina–germania–calcia–yttria–chromium glass, phase-separated alumina–silica glass, and zirconia–yttria–alumina–barium silica glass by a modified chemic…
View article: A Variational Approach to Dissipative Optical Solitons
A Variational Approach to Dissipative Optical Solitons Open
The trial function approach is a useful technique to modelling soliton solutions for equations that can not be solved exactly. We use the variational approach to find approximate solutions for the dissipative solitons described by the cubi…
View article: Introduction to the Special Issue on Optical Fiber Sources and Amplifiers
Introduction to the Special Issue on Optical Fiber Sources and Amplifiers Open
Besides serving as transmission links, optical fibers have been used also to realize several types of photonic devices, namely optical amplifiers, lasers, and broadband sources. Ultrafast fiber las...
View article: Optical Fiber Sources and Amplifiers
Optical Fiber Sources and Amplifiers Open
Papers must be submitted by June 30, 2020, following Fiber and Integrated Optics instructions, to any of the Guest EditorsAcceptance of papers by July 31, 2020Final submission by August 31, 2020Pub...
View article: Optical Sensors and Sensing 2019: introduction to the joint feature issue
Optical Sensors and Sensing 2019: introduction to the joint feature issue Open
This joint feature issue of Optics Express and Applied Optics highlights contributions from authors who presented their latest research at the OSA Optical Sensors and Sensing Congress, held in San Jose, California, USA, from 25–27 June 201…
View article: Optical Sensors and Sensing, 2019: introduction to the joint feature issue
Optical Sensors and Sensing, 2019: introduction to the joint feature issue Open
This joint feature issue of Optics Express and Applied Optics highlights contributions from authors who presented their latest research at the OSA Optical Sensors and Sensing Congress, held in San Jose, California, USA from 25–27 June 2019…
View article: Optical amplification performance of erbium doped zirconia-yttria-alumina-baria silica fiber [Invited]
Optical amplification performance of erbium doped zirconia-yttria-alumina-baria silica fiber [Invited] Open
The suitability for optical amplification in the C + L band of a new zirconia-yttria–alumina-baria silica glass fiber is evaluated. The gain and noise figure are characterized using this fiber as the gain medium. A flat gain of 25 dB with …
View article: Roadmap on optical sensors
Roadmap on optical sensors Open
Sensors are devices or systems able to detect, measure and convert magnitudes from any domain to an electrical one. Using light as a probe for optical sensing is one of the most efficient approaches for this purpose. The history of optical…