TY - JOUR
T1 - Evolution of spatiotemporal intensity of partially coherent pulsed beams with spatial cosine-gaussian and temporal laguerre–gaussian correlations in still, pure water
AU - Ding, Chaoliang
AU - Korotkova, Olga
AU - Horoshko, Dmitri
AU - Zhao, Zhiguo
AU - Pan, Liuzhan
N1 - Funding Information:
Funding: This research was funded partially by the National Natural Science Foundation of China (61575091), China Scholarship Council (202008410578), 2020 Central Plains Talents Program of Henan, High-level talents international training program and Excellent Overseas Visiting Scholar Program of Henan.
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/4
Y1 - 2021/4
N2 - A new family of partially coherent pulsed beams with spatial cosine-Gaussian and temporal Laguerre–Gaussian correlations, named spatial cosine-Gaussian and temporal Laguerre–Gaussian correlated Schell-model (SCTLGSM) pulsed beams, is introduced. An analytic propagation formula is derived for the SCTLGSM pulsed beam through the spatiotemporal ABCD optical system characterizing a continuous dispersive medium. As an example, the evolution of spatiotemporal intensity of the SCTLGSM pulsed beam in a still, pure water column is then investigated. It is found that the SCTLGSM pulsed beams simultaneously exhibit spatiotemporal self-splitting and self-focusing phenomena, which can be attributed to the special spatial/temporal coherence structures and the presence of pulse chirper in the source plane. The physical interpretation of the obtained phenomena is given. The results obtained in this paper will be of interest in underwater optical technologies, e.g., directed energy and communications.
AB - A new family of partially coherent pulsed beams with spatial cosine-Gaussian and temporal Laguerre–Gaussian correlations, named spatial cosine-Gaussian and temporal Laguerre–Gaussian correlated Schell-model (SCTLGSM) pulsed beams, is introduced. An analytic propagation formula is derived for the SCTLGSM pulsed beam through the spatiotemporal ABCD optical system characterizing a continuous dispersive medium. As an example, the evolution of spatiotemporal intensity of the SCTLGSM pulsed beam in a still, pure water column is then investigated. It is found that the SCTLGSM pulsed beams simultaneously exhibit spatiotemporal self-splitting and self-focusing phenomena, which can be attributed to the special spatial/temporal coherence structures and the presence of pulse chirper in the source plane. The physical interpretation of the obtained phenomena is given. The results obtained in this paper will be of interest in underwater optical technologies, e.g., directed energy and communications.
KW - Coherence and statistical optics
KW - Partially coherent
KW - Pulses
KW - Spatiotemporal intensity
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U2 - 10.3390/photonics8040102
DO - 10.3390/photonics8040102
M3 - Article
AN - SCOPUS:85104181319
VL - 8
JO - Photonics
JF - Photonics
SN - 2304-6732
IS - 4
M1 - 102
ER -