Optics & Spectroscopy Calculators
Lens equations, diffraction, Cauchy/Sellmeier dispersion, spectroscopy tools
Cauchy Dispersion Calculator
Calculate refractive index vs wavelength using the Cauchy dispersion equation n(λ) = A + B/λ² + C/λ⁴.
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Sellmeier Equation Calculator
Calculate refractive index using the Sellmeier dispersion equation with material presets (BK7, Fused Silica, SF11).
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Diffraction Grating Calculator
Calculate diffraction angles, angular dispersion, and resolving power using the grating equation mλ = d(sinα + sinβ).
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Raman Waveshift Converter
Convert between Raman shift (cm⁻¹), scattered wavelength (nm), and excitation wavelength for Raman spectroscopy.
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NA to f-Number Converter
Convert between Numerical Aperture (NA) and f-number. NA = 1/(2×f/#) for small angles, or NA = n×sin(θ).
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Pulse Compressor Calculator
Design a grating pulse compressor: calculate grating separation, compressed pulse duration, GDD, and chirp parameter.
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Pulse Front Tilt Calculator
Calculate pulse front tilt angle and group delay from grating parameters for ultrafast optics.
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Thin Lens Calculator
Calculate image distance, magnification, and image characteristics using the thin lens equation 1/f = 1/do + 1/di.
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Lensmaker's Equation Calculator
Calculate focal length and optical power using the Lensmaker's equation: 1/f = (n-1)[1/R1 - 1/R2].
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Mirror Equation Calculator
Calculate image distance, magnification, and image characteristics for concave and convex mirrors.
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Snell's Law for Optics
Optics-focused Snell's law with critical angle, Brewster's angle, total internal reflection, and Fresnel reflectance.
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Brewster's Angle Calculator
Calculate Brewster's angle where reflected light is fully polarized. Input refractive indices of two media.
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Beer-Lambert Law (Optics)
Calculate optical absorbance, transmittance, and optical density using the Beer-Lambert law A = εbc.
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Angular Resolution Calculator
Calculate the diffraction-limited angular resolution using the Rayleigh criterion θ = 1.22λ/D.
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Focal Length Calculator
Calculate focal length from magnification, object/image distance, or field of view. Versatile focal length solver.
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Optical Fiber NA Calculator
Calculate optical fiber numerical aperture, acceptance angle, and V-number. NA = sqrt(n_core² - n_clad²).
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Prism Dispersion Calculator
Calculate prism deviation angle, minimum deviation, and angular dispersion for optical prisms.
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Gaussian Beam Calculator
Calculate Rayleigh range, divergence angle, beam diameter at distance, and depth of focus for a Gaussian beam.
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Thin-Film Coating Calculator
Calculate reflectance of a single-layer thin-film optical coating at normal incidence with quarter-wave and half-wave analysis.
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Laser Spot Size Calculator
Calculate the focused spot diameter, depth of focus, and peak intensity of a laser beam focused by a lens.
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