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Brewster Angle Calculator

Use this online brewster angle calculator with labeled inputs and a worked example. θB = atan(n₂/n₁).

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  1. 01

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polarization angle calculator online

Use brewster angle calculator online with the physical quantities shown below. Dielectric interface with real refractive indices; neglects absorption and magnetic response.

How to use it

Enter Incident refractive index (dimensionless). Set Second refractive index (dimensionless). Select Calculate, check the result units, then copy or download the JSON result.

Options and example settings

OptionChoices / valueExample default
Incident refractive index (dimensionless)Main input. Decimal or scientific notation. Positive values only. 1
Second refractive index (dimensionless)Option. Decimal or scientific notation. Positive values only. 1.5

Calculation method

θB = atan(n₂/n₁)

Worked examples

Worked case for brewster angle calculator. Dielectric interface with real refractive indices; neglects absorption and magnetic response.

Brewster Angle Calculator — example with explicit inputs

Settings: Second refractive index (dimensionless): 1.5

Input:

1

Expected result for the example input and options:

Output:

{
  "brewster_angle_deg": 56.309932474020215
}

Limitations and common mistakes

  • Dielectric interface with real refractive indices; neglects absorption and magnetic response.
  • Match every input to its displayed unit; scientific notation such as 1e-6 is accepted.
  • This is the documented idealized model; real systems may require additional effects and measurement uncertainty.

Frequently asked questions

How can I use polarization angle calculator online?

Enter Incident refractive index (dimensionless). Set Second refractive index (dimensionless). Select Calculate, check the result units, then copy or download the JSON result.

Which model does Brewster Angle Calculator use?

θB = atan(n₂/n₁). Dielectric interface with real refractive indices; neglects absorption and magnetic response.

Technical references

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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