Fundamental physics

Photon pressure thrust per kilowatt

Photon pressure thrust per kilowatt is the force generated when one kilowatt of light is absorbed or reflected, due to photon momentum.

How big is it?

6.7 × 10⁻⁶ N of force

Force · specified

Scale illustration of Photon pressure thrust per kilowatt, calibrated to its force measurement.
The marked force represents 6.7 × 10⁻⁶ N.

A little perspective

About the same scale as Radiation pressure on a laser mirror.

Radiation pressure on a laser mirror: Radiation pressure on a laser mirror is the force exerted by a laser beam as its photons strike and reflect from the mirror.

Linear measure
FORCE6.7 × 10⁻⁶ N7 × 10⁻⁶ N
Bar length measures force in newtons. Mass and local gravity determine weight.
Measurements, assumptions & sources +

Photon pressure thrust per kilowatt

A curated photon pressure thrust per kilowatt comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.

Defined examples — our methodology

The marked force is calibrated. Unmeasured illustration details are representative.

Radiation pressure on a laser mirror

A curated radiation pressure on a laser mirror comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.

Defined examples — our methodology

The marked force is calibrated. Unmeasured illustration details are representative.

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Why this measurement?

Why we use 6.7 × 10⁻⁶ N

For comparison, this page uses force. The record labels this value specified, so the stated convention rather than an inferred average controls the comparison.

A curated photon pressure thrust per kilowatt comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.

The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →

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Recorded properties

Photon pressure thrust per kilowatt dimensions and measurements

PropertySelected valueRecorded rangeBasis
6.7 × 10⁻⁶ NNot recordedspecified

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