##
Chirality

** CHIRALITY IN OPTICAL FIELDS**

KEY to Table Symbols:

- 1-DE with left orientation (
*l) top This is sometimes
referred to as 'Left Hingeing'*
- 1-DE with right orientation (
*r)bottom This is
sometimes referred to as 'Right Hingeing' *
- External arrows: denote spin chirality of field.
**A=anticlockwise, C=clockwise, N=neutral.**
- Internal arrows: denote inclination of elements to
field centre.
** f=centrifugal, p=centripetal, n=neutral**

**Permutation Table of fields derived from left and right oriented
1-DEs**
[An]*r* |
[Cn]*r* |
[Nf]*r* |
[Np]*r* |

[An]*l* |
[Cn]*l* |
[Nf]*l* |
[Np]*l* |

[Cp]*l* |
[Cf]*l* |
[Ap]*r* |
[Af]*r* |

[Cp]*r* |
[Cf]*r* |
[Ap]*l* |
[Af]*l* |

If a field is either an [N] or an [n] type the effect is the same
for fields composed of elements that are either 'left oriented' or 'right
oriented

so that using (l) and (r) hingeing there are a total of 16 types of
field. When the actual field effects are analysed it is found that 8 types
exist.

as the chirality of the 1-D elements can be discounted except at very
close range. Then it becomes merely a matter of field diameter for the

number of elements in the respective field
.

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marek@panetix.com

Last Revised: 30/12/99