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Effects of pseudothermal light source's transverse size and coherence width in ghost-interference experiments.
Itamar Vidal1, Dilson P Caetano, Eduardo J S Fonseca
1Optics and Materials Group-Optma, Instituto de Física, Universidade Federal de Alagoas,Caixa Postal 2051, Maceió, AL, 57061-970, Brazil.
Optics Letters
|May 5, 2009
Summary
Ghost interference was studied by altering a pseudothermal light source. Increasing source size improved interference quality but reduced visibility, while increased coherence width boosted visibility at the cost of quality.
Area of Science:
- Quantum optics
- Experimental physics
Background:
- Ghost interference is a phenomenon in quantum optics.
- Understanding interference patterns is crucial for various optical applications.
Purpose of the Study:
- To experimentally investigate ghost interference.
- To analyze the impact of a pseudothermal light source's parameters on interference patterns.
Main Methods:
- Experimental manipulation of a pseudothermal light source.
- Varying the transverse size of the light source.
- Modifying the coherence width of the light source.
Main Results:
- Increasing the transverse size of the pseudothermal light source improved interference pattern quality.
- Increasing the transverse size of the light source reduced interference pattern visibility.
- Increasing the coherence width of the light source improved interference pattern visibility.
- Increasing the coherence width of the light source reduced interference pattern quality.
Conclusions:
- Experimental findings align with prior theoretical predictions.
- Source parameters significantly influence ghost interference characteristics.
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