The Medium class

Medium is a handle class.

Properties

Public properties

name	type	default	description
n0	double or char		refractive index or nature of the upper medium
nS0	double or char		refractive index or nature of the upper medium
Illumination	Illumination		Illumination of the microscope

Dependent properties

name	type	dependence	description
n	double		refractive index of the upper medium
nS	double		refractive index of the lower medium
lambda	double	= obj.Illumination.lambda;;	incident electric field

Constructor

Constructor

Synthax

% prototypes
Medium(n)
Medium(n, nS)
Medium(mat)
Medium(mat,matS)

% examples
Medium(1.5)
Medium(1.33, 1.5)
Medium('water','glass')
Medium('air','BK7')

Description

Medium(n) creates a Medium object representing a uniform medium of refractive index n.

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Medium(n, nS) creates a Medium object representing a system composed of two semi-infinite media separated by a planar interface, the top one with a refractive index n and the bottom one with nS (S for substrate).

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Instead of specifying the refractive indices, one can specify medium names. The known materials and the associated values are the following:

• glass: 1.51

• BK7: 1.51

• water: 1.33

• air: 1.0

Medium methods

display
Display the properties of the object.

Synthax

% prototype
ME.display()

Description

This method displays the properties of a Medium object in a nice way:

>> ME = Medium('water','glass');

   top mat: water
   sub mat: glass
   n      : 1.33
   nS     : 1.51