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High harmonics have a number of interesting properties. They are a tunable table-top source of XUV/soft X-rays, synchronised with the driving laser and produced with the same repetition rate. The harmonic cut-off varies linearly with increasing laser intensity up until the saturation intensity I sat where harmonic generation stops. [9]
Toggle the table of contents. Hardnesses of the elements (data page) 10 languages. ... Download as PDF; Printable version; In other projects Wikidata item; Appearance.
Similarly, in Indium, there exists a strong transition 4d 10 5s 2 → 4d 9 5s 2 5p at 19.92 eV with a high gf value of 1.11. [10] The energy of this transition corresponds to 13th harmonic with 800 nm excitation wavelength. This enhancement in a particular harmonic order is most commonly known as Resonant High Harmonic Generation (RH).
High harmonic generation (HHG) is a nonlinear process where intense laser radiation is converted from one fixed frequency to high harmonics of that frequency by ionization and recollision of an electron. It was first observed in 1987 by McPherson et al. who successfully generated harmonic emission up to the 17th order at 248 nm in neon gas. [3]
High harmonic generation in krypton.This technology is one of the most used techniques to generate attosecond bursts of light. Attosecond physics, also known as attophysics, or more generally attosecond science, is a branch of physics that deals with light-matter interaction phenomena wherein attosecond (10 −18 s) photon pulses are used to unravel dynamical processes in matter with ...
In applications in which the weight of magnetic cores must be kept to a minimum, such as transformers and electric motors in aircraft, a high saturation alloy such as Permendur is often used. In electronic circuits , transformers and inductors with ferromagnetic cores operate nonlinearly when the current through them is large enough to drive ...
Eleftherios Goulielmakis (Ελευθέριος Γουλιελμάκης) is a Greek physicist specializing in lasers.He is a professor of physics at the University of Rostock, Germany where he currently leads the research activities of the Extreme Photonics group.
Spectroscopy in chemistry and physics, a method of analyzing the properties of matter from their electromagnetic interactions Spectral estimation , in statistics and signal processing, an algorithm that estimates the strength of different frequency components (the power spectrum) of a time-domain signal.