What question did this study set out to answer?

To establish a theoretical model of the prism–film coupler using plane-wave expansion and identify the limits of beam coupling efficiency into thin-film light guides.

October 1, 1970Journal of the Optical Society of America

Theory of the Prism–Film Coupler by Plane-Wave Analysis

View Full Paper

Ask AI

Bookmark

Authors

RUR. UlrichUniversité Paris-Sud

Discussion

Member takes

Implication

Theoretical analysis reveals coupling dynamics in prism–film systems, highlighting a maximum coupling efficiency of 0.80 for Gaussian beams.

Key Points

To establish a theoretical model of the prism–film coupler using plane-wave expansion and identify the limits of beam coupling efficiency into thin-film light guides.
Formulated an analytical model using the method of plane-wave expansion to describe light transfer across a low-index gap between a totally reflecting prism and a thin-film guide.
Analyzed the competing dynamics between forward optical coupling and reverse beam leakage to determine overall efficiency.
Derived an analytical condition allowing the transverse spatial profile of an input laser beam to enter the thin film without distortion.
Identified that maximum coupling efficiency depends directly on the balance between input coupling and reverse leakage into the prism.
Demonstrated that an input Gaussian beam achieves a maximum coupling efficiency of 0.80 under optimal parameters.

Cite This Study

R. Ulrich (1970) studied this question.

synapsesocial.com/papers/6a76b7d0137c7dcc81bd5b84 https://doi.org/10.1364/josa.60.001337

View Full Paper

Ask AI

Bookmark

Implication

Theoretical analysis reveals coupling dynamics in prism–film systems, highlighting a maximum coupling efficiency of 0.80 for Gaussian beams.

Theory of the Prism–Film Coupler by Plane-Wave Analysis

Discussion

Member takes

Implication

Key Points

Cite This Study

Theory of the Prism–Film Coupler by Plane-Wave Analysis

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider