Spectroscopy Wavelength Calculator
Calculate photon energy (eV), frequency (THz), wavenumber, and spectral region from wavelength.
How to Use the Spectroscopy Wavelength Calculator
- Enter wavelength in nanometers.
- Click Calculate.
- Review energy, frequency, wavenumber, and spectral region.
Anwendungsfälle
- •Spectroscopy lab calculations.
- •Photonics and optics education.
- •Laser wavelength characterization.
Formel
Formula: E = hc/λ. E(eV) = E(J) / 1.602×10⁻¹⁹. ν = c/λ. Wavenumber = 1/λ(cm).
Häufig gestellte Fragen
What are the spectral regions?
UV: <380 nm, Visible: 380–700 nm, Near-IR: 700–2500 nm, Mid-IR: 2500–25000 nm, Far-IR: >25000 nm.
What is a wavenumber?
Wavenumber (cm⁻¹) is the number of wavelengths per centimeter. It is commonly used in infrared spectroscopy and Raman spectroscopy.
What is the relationship between energy and wavelength?
They are inversely proportional: higher energy photons have shorter wavelengths. UV light has more energy than infrared.