This Calculator Will Help You To Calculate spatial dispersion for single grating

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$\theta$ =$sin^{-1}(\frac{m \lambda}{d}-sin \gamma)$,   $D_0$ =$\frac{m}{d cos \theta}$

$D_l$ = $fD_{\theta}$,   $A=\frac{ L}{\lambda}(sin\gamma+sin\theta)$

$\delta\lambda= \frac{\lambda}{A}$

Laser Wavelength $\lambda$; Grating Incident Angle $\gamma$; Grating Reticle Density d; Raster Width $f$; Grating Diffraction Order m; Focal Length $L$


Input
Laser Wavelength, $\lambda$:
nm
Grating Diffraction Order, m:
Grating Incident Angle, $\gamma$:
degrees (°)
Grating Reticle Density, d:
Line/mm

Focus Objective Lens Focal Length, $L$:
mm
Grating Width, $f$:
mm




Output

Grating diffraction Angle, $\theta$:
degrees (°)

Colour Resolution, $A$:
degrees (°)
Resolution Spectrum, Half-value Width, $\delta \lambda$:
nm