| 1. | These directions are thus known as the slow axis and fast axis of the waveplate.
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| 2. | Suppose polarization axes x and y parallel with the fast and slow axis of the waveplate:
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| 3. | But the end face along the slow axis can be imaged onto a smaller area than 100 �m.
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| 4. | The optic axis can be the fast or the slow axis for the crystal depending upon the material.
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| 5. | If the input polarization is 45?to the fast and slow axis, the polarization on those axes are equal.
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| 6. | But the phase of the output of the slow axis will be delayed 90?with the output of the fast axis.
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| 7. | The slow axis of R was oriented radially, and distance around R was measured from the horizontal nasal meridian by angle ?.
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| 8. | With other angles than 0?or 45?the values in fast and slow axis will differ and their resultant output will describe an ellipse.
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| 9. | This is due to the small divergence ( hence the name :'slow axis') which is given by the ratio of depth to width.
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| 10. | Similarly, an axis which has the highest refractive index is called a slow axis since the phase velocity of light is the lowest along this axis.
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