Investigation of -1^st-order diffraction in conditions between thin and thick holograms

Area of Science:

• Optics and Photonics
• Holographic Diffraction Theory

Background:

• Holograms exhibit distinct behaviors based on thickness, with a transition region between thin and thick regimes.
• Understanding internal interference is crucial for analyzing holographic diffraction efficiency and characteristics.

Purpose of the Study:

• To explore the transition region between thin and thick holograms.
• To analyze internal interference conditions and diffraction criteria within this region.
• To introduce and evaluate a new 'de-phase factor' for assessing diffraction feasibility.

Main Methods:

• Utilizing the VOHIL (Volume Hologram Interference) model for analysis.
• Examining the maximum phase difference for +1st and -1st order diffractions.
• Introducing and calculating a novel de-phase factor.

Main Results:

• A diffraction criterion aligning with the Klein parameter was derived.
• The de-phase factor provides a whole-field perspective on diffraction feasibility.
• -1st-order diffraction shows slower de-phase factor variation, offering insights into Bragg condition adherence.

Conclusions:

• The VOHIL model provides valuable physical insights into holographic transition regions.
• The de-phase factor and -1st-order diffraction analysis are effective for checking Bragg conditions.
• The proposed method complements rigorous simulation techniques for holographic analysis.