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Jérôme Faist
Jérôme Faist (* January 23, 1962 in GenevaJérôme Faist: ''High Power Room Temperature Emission Quantum Cascade Lasers at λ = 9µm'' (PDF; 7,4 MB)) is a Swiss physicist and since 2007 professor at the institute of at ETH Zürich. Academic career Jérôme Faist attended the EPF Lausanne under[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geneva
Geneva ( ; french: Genève ) frp, Genèva ; german: link=no, Genf ; it, Ginevra ; rm, Genevra is the List of cities in Switzerland, second-most populous city in Switzerland (after Zürich) and the most populous city of Romandy, the French-speaking part of Switzerland. Situated in the south west of the country, where the Rhône exits Lake Geneva, it is the capital of the Canton of Geneva, Republic and Canton of Geneva. The city of Geneva () had a population 201,818 in 2019 (Jan. estimate) within its small municipal territory of , but the Canton of Geneva (the city and its closest Swiss suburbs and exurbs) had a population of 499,480 (Jan. 2019 estimate) over , and together with the suburbs and exurbs located in the canton of Vaud and in the French Departments of France, departments of Ain and Haute-Savoie the cross-border Geneva metropolitan area as officially defined by Eurostat, which extends over ,As of 2020, the Eurostat-defined Functional Urban Area of Geneva was made up of 9 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rüschlikon
Rüschlikon is a municipality in the district of Horgen in the canton of Zürich in Switzerland. It is located on the west shore of Lake Zürich. Coat of arms Its coat of arms features a white shield showing a red rose with a yellow center and a green two-leaved stem. History Earliest archaeological findings are grave mounds from the early Iron Age Hallstatt culture (800-450BC) on the Zimmerberg mountain. (German) retrieved 12 December 2013 The name of Rüschlikon is Alemannic and first appears in documents around 1153 as ''Ruoslinchoven''. In the early 1980s, Rüschlikon blocked off many of the smaller side streets from Thalwil so that traffic between Zürich and Thalwil would be unable to use them. The Swiss Re Centre for Global Dialogue is based in Rüschlikon. The centre is built in the grounds of the Villa Bodmer, which was owned by the Swiss industrialist Karl Martin Leonhard Bodmer. The CEO of commodities company Glencore, Ivan Glasenberg, is a resident of Rüschli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Far-infrared
Far infrared (FIR) is a region in the infrared spectrum of electromagnetic radiation. Far infrared is often defined as any radiation with a wavelength of 15 micrometers (μm) to 1 mm (corresponding to a range of about 20 THz to 300 GHz), which places far infrared radiation within the CIE IR-B and IR-C bands. The long-wave side of the FIR spectrum overlaps with so named terahertz radiation. A.Glagoleva-Arkadiewa. (1924). "Short Electromagnetic Waves of wave-length up to 82 Microns". ''Nature'' 2844 113. do10.1038/113640a0/ref> Different sources use different boundaries for the far infrared; for example, astronomers sometimes define far infrared as wavelengths between 25 μm and 350 μm. Visible light includes radiation with wavelengths between 400 nm and 700 nm, meaning that far infrared photons have tens to hundreds of times less energy than visible light photons. Applications Astronomy Due to black-body radiation, objects with temper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-infrared
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed radiant heat. In 1800 the astronomer Sir William Herschel discovered tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neuchâtel
, neighboring_municipalities= Auvernier, Boudry, Chabrey (VD), Colombier, Cressier, Cudrefin (VD), Delley-Portalban (FR), Enges, Fenin-Vilars-Saules, Hauterive, Saint-Blaise, Savagnier , twintowns = Aarau (Switzerland), Besançon (France), Sansepolcro (Italy) Neuchâtel (, , ; german: Neuenburg) is the capital of the Swiss canton of Neuchâtel, situated on the shoreline of Lake Neuchâtel. Since the fusion in 2021 of the municipalities of Neuchâtel, Corcelles-Cormondrèche, Peseux, and Valangin, the city has approximately 45,000 inhabitants (80,000 in the metropolitan area). The city is sometimes referred to historically by the German name ; both the French and German names mean "New Castle". It was originally part of the Kingdom of Burgundy, then part of the Holy Roman Empire and later under Prussian control from 1707 until 1848, with an interruption during the Napoleonic Wars from 1802 to 1814. In 1848, Neuchâtel became a republic and a canton of Switzerland. Neuchà ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Neuchâtel
The University of Neuchâtel (UniNE) is a French-speaking university based in Neuchâtel, Switzerland. The university has four faculties (schools) and more than a dozen institutes, including arts and human sciences, natural sciences, law and economics. The Faculty of Arts and Human Sciences, with 2,000 students, is the largest school of those that comprise the University of Neuchâtel. The university has an annual budget of CHF 144 million and an annual research fund of CHF 40 million. Approximately 4,000 students, including 600 PhD students attend the university, and more than 600 diplomas, licences, doctorates and certificates are awarded each year. The university has more than 1,100 employees. History The University of Neuchâtel superseded the Academy, which was created in 1838 by King Frederick William IV of Prussia, Prince of Neuchâtel. It awarded licentiate academic degrees in arts and in sciences. In 1848, the Grand Council decreed the closing of the Academy and in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Y
Alfred may refer to: Arts and entertainment *''Alfred J. Kwak'', Dutch-German-Japanese anime television series * ''Alfred'' (Arne opera), a 1740 masque by Thomas Arne * ''Alfred'' (Dvořák), an 1870 opera by AntonÃn Dvořák *"Alfred (Interlude)" and "Alfred (Outro)", songs by Eminem from the 2020 album ''Music to Be Murdered By'' Business and organisations * Alfred, a radio station in Shaftesbury, England *Alfred Music, an American music publisher *Alfred University, New York, U.S. *The Alfred Hospital, a hospital in Melbourne, Australia People * Alfred (name) includes a list of people and fictional characters called Alfred * Alfred the Great (848/49 – 899), or Alfred I, a king of the West Saxons and of the Anglo-Saxons Places Antarctica * Mount Alfred (Antarctica) Australia * Alfredtown, New South Wales * County of Alfred, South Australia Canada * Alfred and Plantagenet, Ontario * Alfred Island, Nunavut * Mount Alfred, British Columbia United States * Alfred, Maine, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular-beam Epitaxy
Molecular-beam epitaxy (MBE) is an epitaxy method for thin-film deposition of single crystals. MBE is widely used in the manufacture of semiconductor devices, including transistors, and it is considered one of the fundamental tools for the development of nanotechnologies. MBE is used to fabricate diodes and MOSFETs (MOS field-effect transistors) at microwave frequencies, and to manufacture the lasers used to read optical discs (such as CDs and DVDs). History Original ideas of MBE process were first established by Günther. Films he deposited were not epitaxial, but were deposited on glass substrates. With the development of vacuum technology, MBE process was demonstrated by Davey and Pankey who succeeded in growing GaAs epitaxial films on single crystal GaAs substrates using Günther's method. Major subsequent development of MBE films was enabled by J.R. Arthur's investigations of kinetic behavior of growth mechanisms and Alfred Y. Cho's in situ observation of MBE process usin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Cascade Laser
Quantum-cascade lasers (QCLs) are semiconductor lasers that emit in the mid- to far-infrared portion of the electromagnetic spectrum and were first demonstrated by Jérôme Faist, Federico Capasso, Deborah Sivco, Carlo Sirtori, Albert Hutchinson, and Alfred Cho at Bell Laboratories in 1994. Unlike typical interband semiconductor lasers that emit electromagnetic radiation through the recombination of electron–hole pairs across the material band gap, QCLs are unipolar, and laser emission is achieved through the use of intersubband transitions in a repeated stack of semiconductor multiple quantum well heterostructures, an idea first proposed in the article "Possibility of amplification of electromagnetic waves in a semiconductor with a superlattice" by R. F. Kazarinov and R. A. Suris in 1971. Intersubband vs. interband transitions Within a bulk semiconductor crystal, electrons may occupy states in one of two continuous energy bands — the valence band, which is heavily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intersubband Transition
Intersubband transitions (also known as intraband transitions) are dipolar allowed optical excitations between the quantized electronic energy levels within the conduction band of semiconductor heterostructures. Intersubband transitions when coupled with an optical resonator form new, mixed-state photons. This mixing is referred to as an intersubband cavity-polariton. These transitions exhibit an anticrossing in energy with a separation known as vacuum-Rabi splitting, similar to level repulsion in atomic physics Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. Atomic physics typically refers to the study of atomic structure and the interaction between atoms. It is primarily concerned wit .... Quantum cascade laser A cascading of intersubband transitions is the mechanism behind a quantum cascade laser which produces a monochromatic coherent light-source at infrared wavelengths. Color of metals Most m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murray Hill, New Jersey
Murray Hill is an unincorporated community located within portions of both Berkeley Heights and New Providence, located in Union County in northern New Jersey, United States. It is the longtime central location of Bell Labs (part of Nokia since 2016), having moved there in 1941 from New York City when the division was still part of Western Electric. The first working transistor was demonstrated in Bell Labs' Murray Hill facility in 1947. The neighborhood shares its ZIP code 07974 with the neighboring borough of New Providence. Murray Hill was named and founded by Carl H. Schultz, founder of a mineral water business once located at First Avenue between 25th and 26th Streets in the Murray Hill district of Manhattan. Schultz purchased a large tract of land there during the 1880s where he built a residence for his family and donated land to be used for a train station with the condition that the area be known as "Murray Hill". Corporate residents * C. R. Bard, a manufacturer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lucent Technologies
Lucent Technologies, Inc. was an American multinational telecommunications equipment company headquartered in Murray Hill, New Jersey. It was established on September 30, 1996, through the divestiture of the former AT&T Technologies business unit of AT&T Corporation, which included Western Electric and Bell Labs. Lucent was merged with Alcatel SA of France on December 1, 2006, forming Alcatel-Lucent. Alcatel-Lucent was absorbed by Nokia in January 2016. Name Lucent means "light-bearing" in Latin. The name was applied for in 1996 at the time of the split from AT&T. The name was widely criticised, as the logo was to be, both internally and externally. Corporate communications and business cards included the strapline 'Bell Labs Innovations' in a bid to retain the prestige of the internationally famous research lab, within a new business under an as-yet unknown name. This same linguistic root also gives Lucifer, "the light bearer" (from lux, 'light', and ferre, 'to bear'), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
