Results 91 to 100 of about 31,377 (306)

Additive Manufacture of Diamond:Titanium Hybrid Quantum Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT Additive manufacture represents one of the most advanced techniques for the creation of complex parts for applications as diverse as aerospace and implant surgery. However, a challenge with bespoke manufacture of metal parts is the incorporation of sensor elements in a fashion compatible with the 3D printing process.
Daniel Stavrevski   +12 more
wiley   +1 more source

Prototype laser-diode-pumped solid state laser transmitters [PDF]

open access: yes
Monolithic, diode-pumped Nd:YAG ring lasers can provide diffraction-limited, single-frequency, narrow-linewidth, tunable output which is adequate for use as a local oscillator in a coherent communication system. A laser was built which had a linewidth of
Cheng, Emily A. P.   +2 more
core   +1 more source

Monolithic quantum-dot distributed feedback laser array on silicon [PDF]

open access: yes, 2018
Electrically-pumped lasers directly grown on silicon are key devices interfacing silicon microelectronics and photonics. We report here, for the first time, an electrically-pumped, room-temperature, continuous-wave (CW) and single-mode distributed ...
Chen, Siming   +14 more
core   +4 more sources

Exploring the Potential of Microwave Annealing for Enhancing Si‐based GeSn Lasers

open access: yesAdvanced Materials Technologies, EarlyView.
We explore low‐thermal‐budget microwave annealing to enhance the performance of group‐IV GeSn lasers on Si. Microwave annealing under optimal conditions can simultaneously relax unwanted compressive strain and enhance the material quality of the GeSn active layer, thereby reducing the threshold and increasing the laser operating temperature.
Yue‐Tong Jheng   +8 more
wiley   +1 more source

Femtosecond Pulses Generation From a Diode-Pumped Yb:CaNb2O6 Disordered Crystal Laser

open access: yesIEEE Access, 2017
We experimentally demonstrated a diode-pumped femtosecond Yb:CaNb2O6 disordered crystal laser. Pumping by a 978-nm fiber coupled laser diode and assisting by a semiconductor saturable absorber mirror, stable continuous-wave mode-locked laser pulses with ...
Zi-Ye Gao   +3 more
doaj   +1 more source

Solid-state lasers for coherent communication and remote sensing [PDF]

open access: yes
Semiconductor-diode laser-pumped solid-state lasers have properties that are superior to other lasers for the applications of coherent communication and remote sensing.
Byer, Robert L.
core   +1 more source

Microstructured KY(WO4)2:Gd3+, Lu3+, Yb3+ channel waveguide laser [PDF]

open access: yes, 2010
Epitaxially grown, 2.4-μm-thin layers of KY(WO4)2:Gd3+, Lu3+, Yb3+, which exhibit a high refractive index contrast with respect to the undoped KY(WO4)2 substrate, have been microstructured by Ar beam milling, providing 1.4-μm-deep ridge channel ...
Aravazhi, S.   +4 more
core   +3 more sources

Parallel Electrical Integration of Photo Bio Electrochemical Systems (photo‐BESs): Performance Gains and Load Dependency

open access: yesAdvanced Materials Technologies, EarlyView.
Parallel wiring of bioelectrochemical devices with conventional generators unexpectedly boosts output. A biophotovoltaic paired with a solar cell delivers up to 50% more power at low loads than their separate contributions; a plant microbial fuel cell shows similar current gains.
Valeria Marsaglia   +4 more
wiley   +1 more source

A 7.08-kW YAG/Nd:YAG/YAG Composite Ceramic Slab Laser with Dual Concentration Doping

open access: yesIEEE Photonics Journal, 2017
The theoretical design and experiment research on the YAG/Nd:YAG/YAG composite ceramic slab laser amplifier were conducted. The numerical analysis was used to obtain the design of YAG/Nd:YAG/YAG composite ceramic slab. A high optical
Mi Li   +10 more
doaj   +1 more source

Picosecond Mode-Locking And X-Band Modulation Of Semiconductor Lasers [PDF]

open access: yes, 1983
Recent developments in two areas of high speed semiconductor lasers will be addressed: (1) passive mode-locking of a segmented-contact semiconductor laser with a reliable, controllable saturable absorber which produces stable picosecond optical pulses ...
Harder, C., Lau, K., Yariv, A.
core   +1 more source

Home - About - Disclaimer - Privacy