MIT Open Access Articles: Recent submissions

Now showing items 43-45 of 55508

    • ℏ2 expansion of the transmission probability through a barrier 

      Pollak, Eli; Cao, Jianshu (AIP Publishing, 2022-08-19)
      Ninety years ago, Wigner derived the leading order expansion term in ℏ2 for the tunneling rate through a symmetric barrier. His derivation included two contributions: one came from the parabolic barrier, but a second term ...

    • Nonlinear exceptional-point lasing with ab initio Maxwell– Bloch theory 

      Benzaouia, Mohammed; Stone, AD; Johnson, Steven G (AIP Publishing, 2022-12-15)
      We present a general analysis for finding and characterizing nonlinear exceptional point (EP) lasers above threshold using steady-state ab initio Maxwell–Bloch equations. For a system of coupled slabs, we show that a ...

    • The impact of semiconductor surface states on vacuum field emission 

      Kim, Taeyoung; Joishi, Chandan; Shih, Pao-Chuan; Palacios, Tomás; Rajan, Siddharth (AIP Publishing, 2022-10-26)
      This work presents a theoretical analysis of the impact of surface states on vacuum field emission currents in semiconductors. In wide and ultra-wide bandgap semiconductors such as GaN and AlGaN, low electron affinity has ...