Question

1. Calculate the wavelength of emission from Gans
sencicondutor laser whose band gap energy is 1.44 ev​

Answer 1

Answer:

Answer: 861 nm

Explanation:

Energy gap of semiconductor is given by:

where, h is the Planck's constant, c is the speed of light, and   is the wavelength of radiation.

We are given that,  

Substitute the values to find the wavelength of radiation:

Hence, the wavelength of the emitted radiation from GaAs which has band gap of 1.44 eV is 861 nm.

Explanation: