Results 31 to 40 of about 165,132 (302)

35 Core Polarization-Maintaining Multi-core Fiber for High Power Operation [PDF]

open access: yesEPJ Web of Conferences
This work presents a novel rod-type 35 core multi-core fiber design that is capable of overcoming the inherent lack of polarization maintenance in such structures. A polarization extinction ratio of 10.5dB is achieved.
Khalil Yahia   +8 more
doaj   +1 more source

Phase-shift mask fabrication at micrometric scale by ion-exchange in glass for astronomical wavefront sensors [PDF]

open access: yesEPJ Web of Conferences, 2020
Photolithography combined with ion-exchange in glass is a well-known technology that can be applied to develop many different optical devices. In this work, we present the complete procedure to generate small circular phase-shift masks with diameters of ...
Prieto-Blanco Xesús   +5 more
doaj   +1 more source

The Boston University Photonics Center annual report 2014-2015 [PDF]

open access: yes, 2015
This repository item contains an annual report that summarizes activities of the Boston University Photonics Center in the 2014-2015 academic year. The report provides quantitative and descriptive information regarding photonics programs in education ...
The Boston University Photonics Center
core   +3 more sources

Backscattering in silicon microring resonators: a quantitative analysis [PDF]

open access: yes, 2016
Silicon microring resonators very often exhibit resonance splitting due to backscattering. This effect is hard to quantitatively and predicatively model.
Ballesteros   +26 more
core   +1 more source

500-W Average Power, 100-mJ level Pulse Energy by Q-switched 7x7 Multicore Fiber Lasers [PDF]

open access: yesEPJ Web of Conferences
This work focuses on achieving high peak and average power through incoherent beam combination of Q-switched 49-core fiber laser. Results show 1.5-MW peak power, and 502-W average power between 1-10 kHz.
Bahri Mehran   +8 more
doaj   +1 more source

OPTICAL PROPERTIES AND CHEMICAL CHARACTERIZATION OF WOODY SYRUP BY USING METHODS OF APPLIED PHOTONICS [PDF]

open access: yesJournal of IMAB - Annual Proceeding (Scientific Papers), 2018
Introduction: The natural woody syrup is a typical product from the Canary Islands and America. It is often used for health food supplement for children, athletes and elderly because it has well-pronounced antioxidant properties. The interest in this syrup is increasing because it is often used in homeopathic medicine and consists of phenolic content ...
Poli Radusheva   +4 more
openaire   +2 more sources

Effects of Laser Plasma Formation on Quasi-Phase Matching of High-Order Harmonics from Nanoparticles and Atoms

open access: yesNanomaterials, 2019
The application of nanoparticles (NPs) and quasi-phase matching (QPM) each play an important role in the enhancement of high-order harmonics (HHG) of ultrashort laser pulses.
Rashid A. Ganeev   +3 more
doaj   +1 more source

From 3D to 2D and back again

open access: yesNanophotonics, 2023
The prospect of massive parallelism of optics enabling fast and low energy cost operations is attracting interest for novel photonic circuits where 3-dimensional (3D) implementations have a high potential for scalability.
Dinc Niyazi Ulas   +6 more
doaj   +1 more source

Silicon-organic hybrid electro-optical devices [PDF]

open access: yes, 2013
Organic materials combined with strongly guiding silicon waveguides open the route to highly efficient electro-optical devices. Modulators based on the so-called silicon-organic hybrid (SOH) platform have only recently shown frequency responses up to 100
Alloatti, L   +19 more
core   +2 more sources

Fighting against fast speckle decorrelation for light focusing inside live tissue by photon frequency shifting [PDF]

open access: yes, 2020
Light focusing inside live tissue by digital optical phase conjugation (DOPC) has drawn increasing interest due to its potential biomedical applications in optogenetics, microsurgery, phototherapy, and deep-tissue imaging.
Cheng, Zhongtao   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy