Results 61 to 70 of about 2,049 (291)

Terahertz Saturable Absorbers [PDF]

open access: yes, 2023
Semiconductor saturable absorber mirrors (SESAMs) are passive elements that have beenused in tandem with lasers in the visible and infrared wavelengths to generate mode-locked pulses for applications in communication and spectroscopy. In this thesis, the
Bloomfield, Jordane
core  

GHz Compact Laser Enabled by GaSb Nanowires as Saturable Absorbers

open access: yesAdvanced Photonics Research, 2023
Owing to the narrow bandgap and excellent optoelectronic properties, III‐Sb nanowires (NWs) enable efficient optical response from near‐infrared to mid‐infrared, making them ideal candidates for broadband optical modulation.
Yanxue Yin   +7 more
doaj   +1 more source

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp   +4 more
wiley   +1 more source

Quasiperiodicity in lasers with saturable absorbers

open access: yesPhysical Review A, 1984
In this paper, we consider the mean-field equations for the laser with a saturable absorber (LSA) and concentrate on the low-intensity solutions. We show that the LSA equations may admit two successive bifurcations. The first bifurcation corresponds to the transition from the zero-intensity state to time-periodic intensities and is a Hopf bifurcation ...
Erneux, Thomas   +2 more
openaire   +2 more sources

Clinical Significance of Therapeutic Drug Level Monitoring for Mycophenolate in Patients With Extrarenal Systemic Lupus Erythematosus—A Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective Clinical response to mycophenolic acid (MPA) is highly heterogeneous; thus, therapeutic drug level monitoring (TDM) may help improve treatment efficacy. This systematic review and meta‐analysis examined therapeutic ranges for MPA levels associated with better outcomes and safety in patients with systemic lupus erythematosus (SLE ...
Zahraa Qamhieh   +5 more
wiley   +1 more source

New extended methine dyes for application in laser technology [PDF]

open access: yes, 1993
Based on the known reverse saturable absorption properties of certain coumarin and long chain polymethine dyes, the synthesis of new related structures was undertaken in order to examine the relationships between structure and RSA activity. It was hoped
Millar, V., Millar, Valerie
core  

Solution-processed two-dimensional materials for ultrafast fiber lasers (invited)

open access: yesNanophotonics, 2020
Since graphene was first reported as a saturable absorber to achieve ultrafast pulses in fiber lasers, many other two-dimensional (2D) materials, such as topological insulators, transition metal dichalcogenides, black phosphorus, and MXenes, have been ...
Fu Bo   +7 more
doaj   +1 more source

Real‐World Longitudinal Data on the Impact of Hydroxychloroquine Blood Level Monitoring on Lupus Outcomes: Results of a Prospective Longitudinal Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective Hydroxychloroquine (HCQ) is a cornerstone therapy in systemic lupus erythematosus (SLE), but the weight‐based dosing does not account for clinical factors that can introduce individual variability in drug metabolism and clearance. We leveraged longitudinal data from a prospective SLE cohort to identify clinical factors that predict ...
Jay J. Patel   +6 more
wiley   +1 more source

Nonlinear photonic Jx arrays as saturable absorbers and optical delimiters

open access: yes, 2019
We present a novel design for on-chip integrated saturable absorbers and optical limiters based on the so-called Jx lattice, and demonstrate its practical feasibility in realistic material platforms such as femtosecond laser-written waveguide ...
El-Ganainy, Ramy   +11 more
core   +1 more source

Passively Q-switched Yb-doped all-fiber laser based on Ag nanoplates as saturable absorber

open access: yesNanophotonics, 2020
We report on a Q-switched Yb-doped all-fiber laser based on a solution-processed Ag nanoplates saturable absorber. Optical deposition procedure is implemented to transfer the Ag nanoplates onto the fiber core area through the thermal effect.
Fu Bo   +8 more
doaj   +1 more source

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