second harmonic

См. также в других словарях:

• second harmonic — antroji harmonika statusas T sritis automatika atitikmenys: angl. second harmonic vok. zweite harmonische, f rus. вторая гармоника, f pranc. deuxième harmonique, m …   Automatikos terminų žodynas

• Second harmonic generation — (SHG; also called frequency doubling) is a nonlinear optical process, in which photons interacting with a nonlinear material are effectively combined to form new photons with twice the energy, and therefore twice the frequency and half the… …   Wikipedia

• Second harmonic imaging microscopy — (SHIM) is based on a nonlinear optical effect known as second harmonic generation (SHG). SHIM has been established as a viable microscope imaging contrast mechanism for visualization of cell and tissue structure and function. A second harmonic… …   Wikipedia

• Surface second harmonic generation — is a method for probing interfaces in atomic and molecular systems. In second harmonic generation (SHG), the light frequency is doubled, essentially converting two photons of the original beam of energy E into a single photon of energy 2 E as it… …   Wikipedia

• Harmonic series (music) — Harmonic series of a string. Pitched musical instruments are often based on an approximate harmonic oscillator such as a string or a column of air, which oscillates at numerous frequencies simultaneously. At these resonant frequencies, waves… …   Wikipedia

• Harmonic generation — Perturbative Harmonic Generation Perturbative Harmonic Generation is a process where by laser lightof frequency ω and photon energy ħω can be usedto generate new frequencies of light. The newly generatedfrequencies are integer multiples of the… …   Wikipedia

• harmonic — A vibration whose frequency is an even multiple of another vibration or fundamental frequency. The first harmonic of a 200 Hz vibration has a frequency of 200 Hz. This is also its fundamental frequency. The second harmonic will have a frequency… …   Aviation dictionary

• Harmonic — A&V A periodic wave having a frequency that is an integral multiple of the fundamental frequency. For example, a wave with twice the frequency of the fundamental frequency is called the second harmonic …   Audio and video glossary

• Harmonic seventh — Inverse Septimal major second Name Other names Septimal minor seventh, Subminor seventh Abbreviation m7 Size Semitones …   Wikipedia

• Harmonic table note layout — Harmonic table note layout. The Harmonic Table note layout, or tonal array, is a key layout for musical instruments that offers interesting advantages over the traditional keyboard layout. Its symmetrical, hexagonal pattern of interval sequences… …   Wikipedia

• Harmonic and Individual Lines and Noise — (HILN) is a parametric codec for audio. The basic premise of the encoder is that most audio, and particularly speech, can be synthesized from only sinusoids and noise. The encoder describes individual sinusoids with amplitude and frequency,… …   Wikipedia