Chapter 8, Problem 8.18P

Interpretation Introduction

(a)

Interpretation:

Derive an expression for the energy that must be absorbed by the particle.

Concept introduction:

Relationship between mass and density is,

$m=\rho V$

Where, m = mass, V = volume and $\rho$ = density

The relationship between total energy and energy in a single laser pulse is as follows,

$Q=F{A}_P{\sigma }_{abs}$

Where, Ap = total surface area of the Nano particle F = energy in a single laser pulse, ${\sigma }_{abs}$ = efficiency of absorption

Interpretation Introduction

(b)

Interpretation:

Calculate the minimum value of F and the minimum laser power.

Concept introduction:

Relationship between mass and density is,

$m=\rho V$

Where, m = mass, V = volume and $\rho$ = density

The relationship between total energy and energy in a single laser pulse is as follows,

$Q=F{A}_P{\sigma }_{abs}$

Where, Ap = total surface area of the Nano particle F = energy in a single laser pulse, ${\sigma }_{abs}$ = efficiency of absorption

Interpretation Introduction

(c)

Interpretation:

Explain how to use the laser to produce a suspension of particles of a single size.

Concept introduction:

Relationship between mass and density is,

$m=\rho V$

Where, m = mass, V = volume and $\rho$ = density

The relationship between total energy and energy in a single laser pulse is as follows,

$Q=F{A}_P{\sigma }_{abs}$

Where, Ap = total surface area of the Nano particle F = energy in a single laser pulse, ${\sigma }_{abs}$ = efficiency of absorption