Temporal and spatial superbunching effects from apair of modulated distinguishable classical light

TL;DR

This paper demonstrates temporal and spatial superbunching effects using modulated distinguishable classical light, supported by experimental measurements and a developed intensity fluctuation correlation theory, with implications for ghost imaging enhancement.

Contribution

It introduces a novel experimental setup with modulated classical light and develops a correlation theory to explain superbunching effects, expanding understanding of classical light behavior.

Findings

Successful observation of superbunching effects in both temporal and spatial domains.

The developed correlation theory aligns well with experimental results.

Potential applications in improving ghost imaging contrast.

Abstract

From the Feynman path integration theory of view, the Hanbury Brown--Twiss effect would not be observed for one definite two-photon propagation path, as well as the superbunching effect. Here, temporal and spatial superbunching effects are measured from a pair of modulated distinguishable classical light. These interesting phenomena are realized by passing two orthogonal polarized laser beams through two rotating ground glass plates in sequence. To understand the underlying physical process, the intensity fluctuation correlation theory is developed to describe the superbunching effect in the temporal and spatial domain, which agrees with experimental results well. Such experimental results are conducive to the study of superbunching effect which plays an important role in improving the performance in related applications, such as the contrast of ghost imaging.