M squared
http://dbpedia.org/resource/M_squared
Die Beugungsmaßzahl ist eine Größe der Dimension Zahl, die einen Laserstrahl charakterisiert: je größer desto schlechter ist der Strahl zu fokussieren, d. h. desto größer ist der kleinste mögliche Fokusdurchmesser.
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In laser science, the parameter M2, also known as the beam propagation ratio or beam quality factor is a measure of laser beam quality. It represents the degree of variation of a beam from an ideal Gaussian beam. It is calculated from the ratio of the beam parameter product (BPP) of the beam to that of a Gaussian beam with the same wavelength. It relates the beam divergence of a laser beam to the minimum focussed spot size that can be achieved. For a single mode TEM00 (Gaussian) laser beam, M2 is exactly one. Unlike the beam parameter product, M2 is unitless and does not vary with wavelength.
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Beugungsmaßzahl
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M squared
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4443796
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1014957725
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Die Beugungsmaßzahl ist eine Größe der Dimension Zahl, die einen Laserstrahl charakterisiert: je größer desto schlechter ist der Strahl zu fokussieren, d. h. desto größer ist der kleinste mögliche Fokusdurchmesser.
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In laser science, the parameter M2, also known as the beam propagation ratio or beam quality factor is a measure of laser beam quality. It represents the degree of variation of a beam from an ideal Gaussian beam. It is calculated from the ratio of the beam parameter product (BPP) of the beam to that of a Gaussian beam with the same wavelength. It relates the beam divergence of a laser beam to the minimum focussed spot size that can be achieved. For a single mode TEM00 (Gaussian) laser beam, M2 is exactly one. Unlike the beam parameter product, M2 is unitless and does not vary with wavelength. The M2 value for a laser beam is widely used in the laser industry as a specification, and its method of measurement is regulated as an ISO Standard.
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6140
