Refractive Index Calculator

Calculate Optical Parameters

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Snell's Law Calculator

Calculate refractive index using Snell's law

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Critical Angle Calculator

Calculate critical angle for total internal reflection

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Optical Power Calculator

Calculate optical power and focal length

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Understanding Refractive Index

Basic Concepts

Key principles:

  • Snell's law
  • Total internal reflection
  • Critical angle
  • Optical density

Parameters

Important factors:

  • Wavelength
  • Temperature
  • Pressure
  • Material composition

Applications

Uses in chemistry:

  • Purity analysis
  • Concentration determination
  • Material identification
  • Quality control

Measurement

Methods:

  • Refractometry
  • Abbe refractometer
  • Digital methods
  • Interferometry

Advanced Topics

Special cases:

  • Dispersion
  • Birefringence
  • Anomalous dispersion
  • Nonlinear effects

Essential Refractive Index Formulas

Snell's Law

n₁sin(θ₁) = n₂sin(θ₂)

Critical Angle

θc = arcsin(n₂/n₁)

Lens Power

P = (n-1)/R