🔭
Laser Beam Divergence Calculator
Calculate laser beam divergence angle and spot size
Instructions: Enter the laser wavelength ($\lambda$), beam waist radius ($w_0$), and propagation distance ($z$) to compute the beam divergence angle and spot radius at distance.
Optical Parameters
Calculation Results
⚠️ For laser physics and optics education reference only. Assumes fundamental Gaussian beam ($TEM_{00}$) mode.