Quarter-wave plates and Half-wave plates

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Discussion Overview

The discussion revolves around the behavior of quarter-wave plates when placed in series, specifically examining the effects of different angular orientations between their fast transmission axes. Participants explore the implications of these configurations on phase shifts and the resulting optical properties.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • One participant notes that quarter-wave plates create a phase shift of λ/4 between the fast and slow transmission axes and inquires about the effects of placing two such plates in series at 0 degrees and 90 degrees relative to each other.
  • Another participant suggests using Jones matrices to determine the outcome of the configurations.
  • There is a question about whether the order of multiplication of the Jones matrices matters, to which a participant confirms that it does, as the order affects the resulting system matrix.

Areas of Agreement / Disagreement

Participants generally agree on the use of Jones matrices for analysis, but there is no consensus on the intuitive understanding of combining quarter-wave plates, and the implications of their orientations remain open for further exploration.

Contextual Notes

The discussion does not resolve the specific outcomes of the configurations, and assumptions regarding the properties of the quarter-wave plates and the light passing through them are not fully detailed.

boby96
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Hi, I am aware that quater-wave plates create a phase shifts of λ / 4 between the fast and slow transmission axis. My question is what happens if we place two quater-wave plates in series so that there is 0 degrees between the fast transmission axis and how would result change if they where placed in series so that there is 90 degrees between fast transmission axis?

Thanks,
 
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Is this a homework question?
 
boby96 said:
Hi, I am aware that quater-wave plates create a phase shifts of λ / 4 between the fast and slow transmission axis. My question is what happens if we place two quater-wave plates in series so that there is 0 degrees between the fast transmission axis and how would result change if they where placed in series so that there is 90 degrees between fast transmission axis?

Thanks,

Just multiply the Jones matrices and you will find the answer.
 
Drakkith said:
Is this a homework question?
No, just that I have covered normal polarisers in series and know how to predict outcome. So was curious if there was any easy and intuitive way of combing quarter wave plates together.

Andy Resnick said:
Just multiply the Jones matrices and you will find the answer.
Thanks, does it matter in what order i multiply them in?
 
boby96 said:
Thanks, does it matter in what order i multiply them in?

Yes, because they are matrices. If the light first goes through retarder '1', then the system matrix is [T]=[2][1]
 

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