More effective lasers
A group of professors from the departments of Chemistry, Soil Science, Physics and Applied Mathematics of the University of Navarra is working together in the preparation and characterization of a type of material termed “photonic crystals”, which has optical properties with many uses. Thanks to these crystals, in the future more powerful and effective lasers will be able to be constructed. Indeed, the Nobel prize winner of 2005 has made specific mention of recent progress in laser technology, which demonstrates the growing interest in this scientific field.
These crystals are required to have a periodicity of an optical magnitude. This feature means that these materials have a structure of energy bands for photons similar to that which metals possess for electrons. These crystals provide ideal characteristics for the development of instruments with important applications in such diverse areas as communications, optical electronics and medicine.
Current tendencies point towards miniaturization, for creating instruments which are both faster and smaller. This will permit enormous advances in nanotechnology.
A challenge beginning in 1997
At the end of the decade of the 90’s, the race began to manufacture photonic crystals. Even then, many applications were visualized for these crystals, such as using them to redirect light without significant loss of energy, something which still has not been completely achieved.
The research being performed at the University of Navarra has been developed as a multidisciplinary effort, involving professors from various departments, and with the collaboration of the TECNUN School of Engineering of San Sebastián. In addition, this research project receives funding from the Spanish Ministry of Education and Science.
Irati Kortabitarte | alfa
The most recent press releases about innovation >>>
Die letzten 5 Focus-News des innovations-reports im Überblick:
A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...
A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.
By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...
International research team makes important step on the path to solving certification problems
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...