Nanostructured devices and materials offer a way to overcome the conventional light absorption limits. Novel optical spectrum splitting and photon-recycling schemes boost the efficiency of optical energy-conversion platforms. Furthermore, optical design concepts are rapidly expanding into the infrared energy band, offering new approaches to harvest waste heat and to reduce the thermal emission losses in solar-thermal and solar water desalination platforms. Broadband engineering of the emission properties of optical materials and devices also paves the way to achieving noncontact radiative cooling of solar cells, electronic circuitries, buildings, and vehicles.
Light—matter interaction enabled by nanophotonics and plasmonics underlie the performance of the third- and fourth-generation energy-conversion devices, including up- and down-conversion of photon energy, near-field radiative energy transfer, and hot electron generation and harvesting. Miniaturization of the energy harvesting photonic devices combined with the recent effort in developing optical materials for fully passive thermal regulation via radiation holds the promise to revolutionize wearable technologies.
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Low-loss optical communication networks help to reduce the growing energy demands and environmental heating effects. This symposium will put in the spotlight these recent advances in photonics and their applications to traditional and emerging applications in energy generation and sustainability. It seeks contributions offering transformative ideas on photon harvesting, spectral sorting, up- and down-conversion, emission control, and new applications beyond conventional solar cell technologies.
Co-Chairs: Sebastian Volz, Tokyo University, Japan and Roberto Li Voti, University Rome, Italy Heat is one of the main forms of energy and its control is of critical importance to efficiently manage the energy resources of nature and global warming issues. The symposium will bring together scientists, technology developers and young researchers who are interested in the theoretical tools and in the development and investigation of a large variety of new materials and applications.
Participants are encouraged to present their own results in the field. Its specific implementations span a large variety of systems ranging from single electronic spins over atomic systems to solid state structures at the nano- and micrometer scale, and it covers notably novel schemes for computation, communication and sensing.
The focus of the joint symposium is the latter aspect in its broadest sense including the application of quantum technology tools and protocols for high-resolution scientific investigations. Advances in active and passive, linear and nonlinear integrated optical components. Numerical tools for integrated optical circuit design. Future directions in integrated optics. The symposium will only comprise invited talks.
CA — Solid-state Lasers Chair: Christian Kraenkel, University of Hamburg, Germany Advances in solid-state lasers: novel solid-state lasers and amplifiers; high-power and high-energy lasers; power-scalable laser architectures; solid-state micro-chip lasers; crystalline waveguide lasers ns- and ps-pulse generation; short wavelength lasers; mid-infrared lasers; wavelength tuning techniques and tunable lasers; intracavity wavelength conversion; upconversion lasers; techniques for thermal management and beam quality control; amplitude and frequency stability; novel pump sources and pumping configurations; laser resonator design; spectroscopic characterisation of solid-state gain media; advanced laser crystals and glasses; laser characterisation and modelling; lasers for large-scale facilities.
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CB — Semiconductor Lasers Chair: Mariangela Gioannini, Politecnico di Torino, Italy New technology, devices and applications; UV lasers, visible lasers, near-infrared lasers; mid to far-infrared semiconductor lasers including quantum cascade and inter-subband lasers; quantum well, wire, dot and dash lasers; high power and high brightness lasers; vertical extended cavity surface emitting lasers; optically-pumped semiconductor lasers; photonic crystal semiconductor lasers, micro-cavity lasers, nanolasers, plasmonic lasers, polariton lasers; semiconductor ring lasers; short-pulse generation, mode locking; semiconductor optical amplifiers; novel characterization techniques; functional applications, including but not limited to: switching, clock recovery, signal processing; semiconductor lasers in integrated photonic circuits; laser dynamics, synchronization, chaos.
CD — Applications of Nonlinear Optics Chair: Gregor Knoop, Paul Scherrer Institute, Villigen, Switzerland Novel applications of nonlinear optical phenomena and new devices; nonlinear frequency conversion for the UV, visible and IR; telecommunications applications and all-optical switching; all-optical delay lines and slow light; optical parametric devices such as optical parametric amplifiers and oscillators; nonlinear optics in waveguides and fibres, including photonic crystal structures and microstructured optical fibres; quasi-phasematched materials and devices; novel nonlinear materials; metamaterials and nanostructures; stimulated scattering processes and devices; applications of optical solitons and photorefractives; electro-optic and Kerr devices in crystals and semiconductors; Raman based devices including amplifiers and lasers; nonlinear probing of surfaces; multi-photon imaging and coherent Raman microscopy; quantum oriented applications.
CE — Optical Materials, Fabrication and Characterisation Chair: Pier Sazio, University of Southampton, Southampton, United Kingdom Fabrication of optical materials; new crystalline and glass laser materials in bulk, fiber and waveguide geometry; micro- and nano-fabrication and -engineering techniques; heterogeneous integration techniques; optical characterisation of laser and nonlinear materials, micro-structured fibre and photonic crystal waveguides, micro- and nano-crystalline materials, single defect centres, quantum wells, quantum wires and quantum dots, nano-tubes and nano-needles, innovative organic materials.
Today laser technology is ubiquitous in our modern world with applications from medical uses , telecommunications, and even weapon systems. In the following article, we'll take a very quick tour through the main events that led to the development of the laser and look at some future, in development, applications for lasers.
What follows is a list of selected milestones in the fascinating and exciting development of laser technology. This list is far from exhaustive and is in chronological order. He was the first to postulate that energy could be emitted or absorbed in discrete chunks or quanta.
Description of Milestone: Although Planck's theory was groundbreaking in its own right it had one very important effect. Planck's insight would inspire one of the most influential scientists of our age - Albert Einstein. Einstein would build on Planck's theory to release his paper on the photoelectric effect.
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He proposed that light also delivers energy in chunks, or discrete quantum particles, called photons. Description of Milestone: Albert first theorized about the stimulation of light emission way back in He used Planck's law of radiation to describe probability coefficients Einstein coefficients for absorption and spontaneous and stimulated emission of EM radiation, including light. His theory proposed that electrons could be stimulated into emitting light of a particular wavelength. This would become the foundational principle of all lasers used today.
It would take another 40 years or so before scientists were able to prove him right.
The importance of the laser innovation or milestone: Research into holography was stalled until the development of lasers in the 's. This would stimulate, in part, the development of both technologies thereafter. Holography is the means of producing a unique photographic image without the use of a lens.
He was attempting to improve the resolution of electron microscopes by making holograms using the electron beam and then examining that with coherent light. At the time of discovery, it had little if any, practical use until the development of lasers in the 's. This would suddenly lead to an explosion in the use of holograms in the United States. Today this explosion has led to an enormous industry that includes HUD's.
The importance of the laser innovation or milestone: Microwave amplification by stimulated emission of radiation or MASER, was the first practical demonstration of Einstein's principles and used microwave radiation instead of light in lasers. It would successfully obtain the first amplification and generation of EM radiation through stimulated emission. In March Townes and Schawlow were awarded the patent for their invention. MASER technology would go on to be used in to amplify radio signals and to be used as an ultra-sensitive detector.
The importance of the laser innovation or milestone: Modern lasers are heavily reliant on the pumping method to stimulate and amplify light sources. It was first developed by Nikolai Basov in at the P.
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Lebedev Physical Institute in Moscow. Whilst trying to find ways of moving electrons around atoms into higher-energy states and researching oscillators he stumbled upon the concept of negative absorption that is commonly called the pumping method. This involves transferring energy from an external source into a gain medium within the laser assembly. Engineer or scientists behind the project: Nikolai G. Description of Milestone: Basov's invention would provide the means for a continuous laser beam to be sustained.
It provided a means of maintaining the required population inversion of the laser medium by 'pumping' electrons into a metastable state required to release photons. Nikolai and Charles H. He also jotted down down his ideas on the actual construction of one and has the foresight to get it notarized in a local store in the Bronx.
Engineer or scientists behind the project: Gordon Gould. This notebook would become the focus of a year court battle for the patent rights to the technology. Gould would finally win his case in to be awarded the first patent for a laser. The importance of the laser innovation or milestone: This was the first successful assembly of a complete laser device. It would be the first of many more to come. Description of Milestone: After serving some time in the navy, Theodore earned his B.
After successfully completed it in the summer of he turned his attention to the development of a laser. After successfully building a working laser, he had his achievements published in Nature in and went on to found the Korad Corporation to develop and build high-powered laser equipment.
This company would become a market leader and in supplied their equipment was used as the lunar laser ranging equipment. This laser would find many applications in telecommunications, internet data transmission, holography, bar-code scanners, medical devices and many more. Javan was able to see how a population inversion can be created in a gas discharge by selective, resonant energy transfer. This was key to his invention of the first gas laser, the He-Ne laser, which was also the first continuous wave laser. It would pave the way for an explosion in future innovation in laser technology for use in surgery and medical treatment.