Results 141 to 150 of about 2,732,015 (387)
New techniques for multiple wavelength fiber laser generation based on edfa and tdfa [PDF]
, 2019 Multiple wavelength fiber laser (MWFL) can be a potential source for microwave generation as the conventional microwave generator have several issues in generating high frequency.
Ahmad, Nurul ‘Atiqah
core
Preliminary observations at 10-cm wavelength using the NRL 84-foot radio telescope [PDF]
, 1959 E. F. McClain, R. M. Sloanaker
openalex +1 more source
Biomedical Optics Express, 2015 We analyze the physics behind the newest generation of rapidly wavelength tunable sources for optical coherence tomography (OCT), retaining a single longitudinal cavity mode during operation without repeated build up of lasing. In this context, we theoretically investigate the currently existing concepts of rapidly wavelength-swept lasers based on ...
Christian Jirauschek, Robert Huber
openaire +3 more sources
Advanced Engineering Materials, EarlyView.This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel +7 more
wiley +1 more source
Journal of Clinical Endocrinology and Metabolism, 2005 Light can elicit acute physiological and alerting responses in humans, the magnitude of which depends on the timing, intensity, and duration of light exposure. Here, we report that the alerting response of light as well as its effects on thermoregulation
C. Cajochen +7 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This perspective article explores an innovative powder metallurgical approach to producing high‐nitrogen steels by utilizing a mixture of stainless steel and Si3N4. This mixture undergoes hot isostatic pressing followed by direct quenching. The article also examines adapting this method to laser powder bed fusion (PBF‐LB/M) to overcome nitrogen ...
Louis Becker +5 more
wiley +1 more source
Optics Express, 2014 We report the generation of tunable single-, switchable and tunable dual-, and stable triple-wavelength dissipative solitons (DSs) in an all-normal-dispersion mode-locked Yb-doped fiber laser based on a graphene-oxide saturable absorber (GOSA) without ...
Shisheng Huang +5 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör +9 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt +6 more
wiley +1 more source