Ultra fast, robust, stable, and high precision: these are some of the characteristics of a new laser developed by an international research team. This ultra-small laser paves the way for a new generation of highly powerful, ultra-stable integrated lasers.
Professor Roberto Morandotti and his team at the INRS University's Énergie Matériaux Télécommunications Research Centre played a leading role in the design of this versatile laser that recently made the front page of the prestigious scientific journal Nature Communications."We advanced a new approach to develop a laser that boasts as yet unparalleled stability and precision, allowing us to conduct new experiments and open up new realms of research," said Professor Morandotti, who was elected a fellow by the Optical Society of America and by the International Society for Optics and Photonics (SPIE). "Plus, a multitude of applications may be created in biology, medicine, materials processing, IT, high speed communications, and metrology."
For the first time, the researchers tested the filter-driven four-wave mixing method, which presents a number of advantages. Notably the method makes it possible to increase the laser's stability and resistance to external disruptions, increase the amplitude of light pulses while reducing their duration, and emit extremely high quality, high-repetition-rate pulses of up to 200 gigahertz or more, while maintaining a very narrow spectral bandwidth.Working on Professor Roberto Morandotti's team at INRS, researchers Marco Peccianti and Alessia Pasquazi helped design the operating schematics of the new laser and amplifier, and helped build the prototype. Digital simulations were performed by Pasquazi.
Gisèle Bolduc | EurekAlert!
Quick, Precise, but not Cold
17.05.2017 | Fraunhofer-Institut für Lasertechnik ILT
A laser for divers
03.05.2017 | Laser Zentrum Hannover e.V.
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.
In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...
Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...
For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Researchers from the University of Basel’s Swiss Nanoscience Institute network have reported the results in the journal Science Advances.
Hydrogen is the most common element in the universe and is an integral part of almost all organic compounds. Molecules and sections of macromolecules are...
22.05.2017 | Event News
17.05.2017 | Event News
16.05.2017 | Event News
22.05.2017 | Materials Sciences
22.05.2017 | Life Sciences
22.05.2017 | Physics and Astronomy