Magnetized Plasma as a Versatile Platform for Switching

Abstract

Abstract-We study the magneto-permittivity effect in a magnetized plasma with appropriately designed parameters. We show that at frequencies near the plasma frequency, magneto-optical activity plays an important role to manipulate and control the wave propagations in the magnetized plasma. Such a unique feature can be utilized to establish sensitive magnetic field switching mechanism, which is confirmed by detailed numerical investigations. Switching by magnetic field based on magnetized plasma is flexible and compatible with other optical system; moreover it is applicable to any frequency by tuning the plasma density. For these reasons, our work shows the possibility for developing a new family of high frequency and ultrasensitive switching applications.

Frequency tunable switching between transmission and absorption modes based on graphene and VO2 layers at the THz range

“…So, device innovations that can dynamically switch and tune between transmission and absorption at the THz range are still a challenge. Flexible materials such as graphene [7,[10][11][12][13][14], plasma [15], Ge 2 Sb 2 Te 5 [12], and VO 2 [4,12,[16][17][18][19][20] provide a plausible solution to achieve reconfigurable THz wave switching .…”