attosecond
Definition
- Noun:
- A unit of time equal to one quintillionth (10⁻¹⁸) of a second: An attosecond is an extremely short duration of time, specifically one billionth of a billionth of a second. It is used in scientific fields like physics and chemistry to measure ultrafast events.
- One thousandth of a femtosecond: An attosecond is a subdivision of a femtosecond, which is itself 10⁻¹⁵ seconds.
Usage Examples
- Noun:
- Scientists can now measure processes that occur on an attosecond timescale.
- The lifetime of certain atomic transitions is measured in attoseconds.
Advanced Usage
- "Attosecond science" or "Attosecond physics": Refers to the branch of science that studies phenomena occurring within attoseconds.
- Attosecond physics allows us to observe the motion of electrons.
- "Attosecond pulse": Refers to a pulse of light that lasts for attoseconds.
- Researchers generated an attosecond pulse of X-ray light.
Variants and Related Words
- Femtosecond (n): A unit of time equal to 10⁻¹⁵ seconds, or one thousand attoseconds.
- Picosecond (n): A unit of time equal to 10⁻¹² seconds.
- Attosecond-scale (adj): Describing phenomena or measurements on the order of attoseconds.
Synonyms
- Unit of time: (General category)
- Ultrafast time unit: (Descriptive term)
Related Phrases
- On the attosecond scale: Happening within a timeframe of attoseconds.
- Chemical bonds can break on the attosecond scale.
Noun
-
one quintillionth (10^-18) of a second; one thousandth of a femtosecond
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