Results 31 to 40 of about 5,089,608 (342)
Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser [PDF]
, 2006 We report the operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser. The laser delivers 1 W at 855 nm and is pumped with a cost-effective fiber-coupled laser diode emitting at 806 nm.
Abram +19 more
core +1 more source
Scientific Reports, 2015 AbstractCavity optomechanics explores the interaction between optical field and mechanical motion. So far, this interaction has relied on the detuning between a passive optical resonator and an external pump laser. Here, we report a new scheme with mutual coupling between a mechanical oscillator supporting the mirror of a laser and the optical field ...
Gerke, Stephen +5 more
openaire +6 more sources
Monolithic integration of an injection laser and a metal semiconductor field effect transistor [PDF]
, 1979 A new laser structure, the "T-laser", has been monolithically integrated with a MESFET on a semi-insulating GaAs substrate. Integration is achieved by means of a compatible structure in which the optically active layer of the laser also serves as the ...
Margalit, S. +3 more
core +1 more source
Laser powder-bed fusion additive manufacturing: Physics of complex melt flow and formation mechanisms of pores, spatter, and denudation zones [PDF]
, 2015 This study demonstrates the significant effect of the recoil pressure and Marangoni convection in laser powder bed fusion (L-PBF) of 316L stainless steel.
S. Khairallah +3 more
semanticscholar +1 more source
Effects of laser fluence on silicon modification by four-beam laser interference [PDF]
, 2015 This paper discusses the effects of laser fluence on silicon modification by four-beam laser interference. In this work, four-beam laser interference was used to pattern single crystal silicon wafers for the fabrication of surface structures, and the ...
Dayou Li +7 more
core +2 more sources
Narrow linewidth single laser source system for onboard atom interferometry [PDF]
, 2014 A compact and robust laser system for atom interferometry based on a frequency-doubled telecom laser is presented. Thanks to an original stabilization architecture on a saturated absorption setup, we obtain a frequency-agile laser system allowing fast ...
Bidel, Yannick +6 more
core +2 more sources
Optics and Laser Technology, 2022 3 The electric vehicle (EV) battery systems are complex assemblies of dissimilar materials in which battery 4 cells are connected using several thousand interconnect joints.
Amirhossein Sadeghian, N. Iqbal
semanticscholar +1 more source
Molecular screening tools to study Arabidopsis transcription factors
Frontiers in Plant Science, 2011 In the model plant Arabidopsis thaliana, more than 2000 genes are estimated to encode transcription factors (TFs), which clearly emphasizes the importance of transcriptional control. Although genomic approaches have generated large TF Open Reading Frame (
Nora eWehner +2 more
doaj +1 more source
Keyhole threshold and morphology in laser melting revealed by ultrahigh-speed x-ray imaging
Science, 2019 The key to keyhole formation The formation of keyholes, or vapor-filled depressions, during laser welding presents a large problem for additive manufacturing. Cunningham et al. used high-speed x-ray imaging to take a detailed look at keyhole formation in
Ross W Cunningham +7 more
semanticscholar +1 more source
Maxwell Meets Marangoni—A Review of Theories on Laser‐Induced Periodic Surface Structures
Laser & Photonics reviews, 2020 Surface nanostructuring enables the manipulation of many essential surface properties. With the recent rapid advancements in laser technology, a contactless large‐area processing at rates of up to m2 s−1 becomes feasible that allows new industrial ...
J. Bonse, S. Gräf
semanticscholar +1 more source