Photonics Calculator

Photonics Calculator is a scientific calculator app for THz, optics, laser, RF, spectroscopy and NDT-related calculations.

The app is designed for students, researchers, engineers and laboratory users who need quick reference calculations in photonics and material characterization.

Key tools include:
• THz frequency, wavelength, wavenumber and photon energy conversion
• Time delay and reflection-mode thickness estimation
• Refractive index calculation from time delay and sample thickness
• Absorption coefficient approximation
• FMCW range resolution calculator
• Laser pulse energy and fluence calculator
• Photon energy calculator
• Gaussian beam calculator
• dB calculator
• Frequency-to-wavelength calculator

Features:
• Formula explanation for each calculator
• Instant result preview
• Editable stepper input for quick adjustment
• Manual keypad input support
• Copy and share results
• Clean category-based interface

Disclaimer:
This app provides approximate scientific calculations based on common formulas. It is intended for education, research and engineering reference use only. It is not a certified measurement device, medical device, safety tool or replacement for professional engineering judgement.