Microstructured All-Optical Switching Based on Two-Dimensional Material

Abstract

Microstructured all-optical switching, possessing the unique function of light controlling light, is an important part of the on-chip ultra-fast optical connectivity network and integrated logic computing chip. Microstructured all-optical switching has attracted extensive research interest, the latest great developments of which have also yielded progress in nanophotonics, nonlinear optics, optical communications, and integrated optics, etc. The emergence of two-dimensional materials with good third-order optical nonlinearity provides an important driving force for the improvement of all-optical switches. This paper reviews the implementation principles, novel configurations, improved performance indexes, and research progress based on different two-dimensional materials for micro/nano all-optical switching. Not only is a systematic discussion of the current state provided, but also, a brief outlook is afforded on the remaining challenges in the pursuit of the application of practical on-chip microstructured all-optical switching that is based on two-dimensional materials.

Ultrafast nonlinear absorption in MoTe2 and MoTe2/MoS2 nanocomposite films and its application to all-optical logic gates

“…It has been experimentally reported that SA does not improve on increasing the thickness of the MoTe 2 /MoS 2 nanocomposite films [53]. Hence, the type-II heterostructure is more advantageous for the interlayer migration of carriers and the NLA response of the MoTe 2 /MoS 2 heterostructure is larger than those of the pure MoTe 2 and MoS 2 nano-films [53,61,62].…”

Optical non-linearities and applications of ZnS phosphors

“…Most of the findings of researchers in the sub-picosecond alloptical switching domain are in the transmission mode through the target sample, which can attain terabit-rate modulation of the incident signal (Qi et al, 2021;Jiang et al, 2022;Wang et al, 2022;Zhang et al, 2022;Saha et al, 2023;Sun et al, 2023;Wang et al, 2023;Xu et al, 2023). The main challenge with these types of switches lies in the fact that the intensity of the transmitted signal is quite low, while the switch-off state of the device is not as sharp as that of the switch-on state.…”