Optomechanically induced transparency is a kind of induced transparency arising from the interference of excitation pathways in optomechanical systems and can be used to realize high speed optical switches and precisi...
详细信息
Optomechanically induced transparency is a kind of induced transparency arising from the interference of excitation pathways in optomechanical systems and can be used to realize high speed optical switches and precision measurements. Due to the intrinsic feature of optomechanical interaction, optomechanically induced transparency can only be observed under strong pump fields. However, the applications of optomechanically induced transparency in nanophotonics require low pump power and good controllability. Thus it is important to reduce the pump power and improve the controllability of optomechanically induced transparency with current experimental parameters. In this work, we propose a realizable method for the achievement of low-power optomechanically induced transparency by introducing a magnetic force coupling. We show that the magnetic coupling can obviously reduce the pump threshold value, and optomechanically induced transparency with ultralow pump threshold value and desirable controllability can be realized. In comparison to optomechanical system combining piezoelectric materials, the magnetic force-coupled optomechanical system may be a better candidate for optical information process. (c) 2018 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://***/licenses/by/4.0/).
The polymerization of three analogous monomers-2,2'-thiobisethanol dimethacrylate, 2,2'-oxybisethanol dimethacrylate and 1,5-pentanediol dimethacrylate-has been studied in the temperature range 30-95 degrees C...
详细信息
The polymerization of three analogous monomers-2,2'-thiobisethanol dimethacrylate, 2,2'-oxybisethanol dimethacrylate and 1,5-pentanediol dimethacrylate-has been studied in the temperature range 30-95 degrees C by isothermal d.s.c. The temperature and heteroatom effects on the polymerization course were considered from the point of view of the occurrence and relative importance of hydrogen abstraction reaction which is manifested by chain transfer and chain peroxidation processes. Generally the advantageous effect of the sulfide group is revealed in reduction of oxygen inhibition and suppression of the drop of final conversion with increasing temperature above 70 degrees C in the absence of oxygen. However, the influence of the sulfide group on the polymerization of dimethacrylates is not so great as on diacrylates due to various factors of both a physical and chemical nature.
暂无评论