OPD ↔ Phase calculator
Convert physical optical path difference into phase shift.
Category: Spectroscopy
Formula: Δφ = 2π · OPD / λ (rad)
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| OPD | OPD | nm | 633 |
| Wavelength | lam | nm | 633 |
Result with the default inputs
- Phase: 6.2832 rad
- Phase: 360 °
- Waves: 1
Open it with your own values: put each input in the address as a parameter, for example /calculators/opd-phase?OPD=633. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Optical path length