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- Femtosecond abstract "A femtosecond is the SI unit of time equal to 10−15 of a second. That is one quadrillionth, or one millionth of one billionth, of a second. For context, a femtosecond is to a second as a second is to about 31.7 million years; a ray of light travels approximately 0.3 µm (micrometers) in 1 femtosecond, a distance comparable to the diameter of a virus.The word femtosecond is formed by the SI prefix femto and the SI unit second. Its symbol is fs.A femtosecond is equal to 1000 attoseconds, or 1/1000 picosecond. Because the next higher SI unit is 1000 times larger, times of 10−14 and 10−13 seconds are typically expressed as tens or hundreds of femtoseconds.Shorter Times Typical time steps for molecular dynamics simulations are on the order of 1 fs. The waves of visible light oscillate with a period (reciprocal frequency) of about 2 femtoseconds . The precise period depends on the energy of the photons, which determines their color. (See wave-particle duality) This time can be calculated by dividing the wavelength of the light by the speed of light (approximately 3 x 108 m/s) to determine the time required for light to travel that distance. 1.3 fs – cycle time for 390 nanometer light, at the transition between violet visible light and ultraviolet 2.57 fs – cycle time for 770 nanometer light, at the transition between red visible light and near-infrared 15 fs – the swiftest chemical reaction, such as the absorption of a light photon in the Photosynthetic antenna molecule 200 fs – the average chemical reactions, such as the reaction of pigments in an eye to light 300 fs – the duration of a vibration of the atoms in an iodine moleculeLonger Times".
- Femtosecond wikiPageID "77689".
- Femtosecond wikiPageRevisionID "594623238".
- Femtosecond hasPhotoCollection Femtosecond.
- Femtosecond subject Category:Orders_of_magnitude_(time).
- Femtosecond comment "A femtosecond is the SI unit of time equal to 10−15 of a second. That is one quadrillionth, or one millionth of one billionth, of a second. For context, a femtosecond is to a second as a second is to about 31.7 million years; a ray of light travels approximately 0.3 µm (micrometers) in 1 femtosecond, a distance comparable to the diameter of a virus.The word femtosecond is formed by the SI prefix femto and the SI unit second.".
- Femtosecond label "Femtosecond".
- Femtosecond label "Femtoseconde".
- Femtosecond label "Femtosecondo".
- Femtosecond label "Femtosegundo".
- Femtosecond label "Femtosekunda".
- Femtosecond label "Femtosekunde".
- Femtosecond label "Femtossegundo".
- Femtosecond label "فمتوثانية".
- Femtosecond label "飞秒".
- Femtosecond sameAs Femtosekunde.
- Femtosecond sameAs Femtosegundo.
- Femtosecond sameAs Femtosegundo.
- Femtosecond sameAs 1_E-15_s.
- Femtosecond sameAs Femtosecondo.
- Femtosecond sameAs Femtoseconde.
- Femtosecond sameAs Femtosekunda.
- Femtosecond sameAs Femtossegundo.
- Femtosecond sameAs m.0kbjz.
- Femtosecond sameAs Q1777507.
- Femtosecond sameAs Q1777507.
- Femtosecond wasDerivedFrom Femtosecond?oldid=594623238.
- Femtosecond isPrimaryTopicOf Femtosecond.