Intense ultra-broadband down-conversion from randomly poled nonlinear crystals
Ji\v{r}\'i Svozil\'ik, Jan Pe\v{r}ina Jr
TL;DR
This paper demonstrates that randomly poled nonlinear crystals can generate intense, ultra-broadband photon pairs with properties similar to chirped periodically-poled crystals, with linear intensity scaling and potential for cycle-duration photon pairs.
Contribution
It introduces the use of randomly poled nonlinear crystals for efficient ultra-broadband photon-pair generation, showing comparable performance to chirped periodically-poled crystals.
Findings
Photon-pair fields are intense and ultra-broadband.
Intensities scale linearly with the number of domains.
Photon pairs can have durations comparable to one optical cycle.
Abstract
Randomly poled nonlinear crystals are shown to be able to emit intense ultra-broadband photon-pair fields with properties comparable to those coming from chirped periodically-poled crystals. Their intensities scale linearly with the number of domains. Also photon pairs extending over intervals with durations comparable to one optical cycle can be generated in these crystals.
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