Chapter 18, Problem 18.6QAP

Interpretation Introduction

(a)

Interpretation:

The circumstances under which a helium-neon laser would be preferable to an argon-ion laser should be determined.

Concept introduction:

The helium-neon laser is working at a wavelength of $632.8\text{nm}$. It contains $25\%$ of neon and $75\%$ of helium. The Argon-ion laser is a powerful gas laser. It generates multiples colour beam such as green or blue beam.

Interpretation Introduction

(b)

Interpretation:

The circumstances under which a diode laser would be preferable to an argon-ion laser or helium-neon laser should be determined.

Concept introduction:

The diode laser is a light creating device. It is uses semiconductor technology. It can convert electrical energy directly to the light. The helium-neon laser is working at a wavelength of $632.8\text{nm}$. It contains $25\%$ of neon and $75\%$ of helium. The Argon-ion laser is a powerful gas laser. It generates multiples colour beam such as green or blue beam.

Interpretation Introduction

(c)

Interpretation:

The reasons of UV emitting sources are avoided should be determined.

Concept introduction:

UV rays are visible radiation as such as visible light, signals. Ultraviolet (UV) rays are electromagnetic radiation which transmitted with different frequencies.