Excitation of terahertz surface magnetoplasmons by nonlinear mixing of two lasers on a rippled surface of magnetized n-InSb

Excitation of terahertz surface magnetoplasmons by nonlinear mixing of laser and its second harmonic on a rippled surface of n type semiconductor

“….68, the electron cyclotron frequency is ω ce , ν is the collision frequency of electrons, ω p = (n 0 e 2 )/(m * e ϵ 0 ϵ r ) is the electron plasma frequency, m * e = 0.014m e is the effective mass of the electron, n 0 = 2.59 × 10 24 m −3 is electron density for the n-InSb and the respective electron plasma frequency ω p is 30.8 THz, [21] is given by,…”

“…. After applying the electric field boundary conditions at x = 0 for ntype semiconductor-free space interface, we obatined the SMPs dispersion relation [21,26] as,…”

“…Kumar et al [20] studied the excitation of THz SMPs over the n-InSb by linear mode conversion of THz radiation. Srivastav and Panwar [21] analytically derived generation of THz SMPs on rippled surface of n-InSb in the presence of external magnetic field by nonlinear mixing of two laser beams.…”

Resonant excitation of terahertz surface magnetoplasmons by optical rectification over a rippled surface of n-type indium antimonide

“…Recently, THz has attracted a lot of interest because its frequency application can be used in spectroscopy (Afsah-Hejri et al 2019;Spies et al 2020), communication (Yang et al 2020;Ghazialsharif et al 2023;Katyba et al 2023), imaging in medical diagnostics (Peng et al 2020;Zhang et al 2020;Wang 2021), sensing (Islam et al 2022;Lai et al 2023;Tan et al 2023), detection (Lewis 2019), etc. Terahertz radiation can be generated by a variety of techniques and processes, such as laser-plasma interaction Manendra et al 2020), electron beam-plasma interaction (Yang et al 2022;Gupta, Gurjar & Jain 2023), photoconductivity antenna (Isgandarov et al 2021;Lu et al 2022;Sandeep & Malik 2023), electron beam or laser interaction with a semiconductor or metal (Liu et al 2007;Davidson et al 2020;Dong et al 2021), nonlinear mixing of lasers (Kumar, Rajouria & KK 2013;Kumar et al 2017Kumar et al , 2023Srivastav & Panwar 2022), optical rectification (Lee et al 2000;Yeh et al 2007;Aoki, Savolainen & Havenith 2017) and second and third harmonic generation Gour et al 2022) etc. Kumar et al (2021) investigated THz radiation generation by beating of two laser pulses of finite spot size in a rippled density plasma.…”

“…2021), nonlinear mixing of lasers (Kumar, Rajouria & KK 2013; Kumar et al. 2017, 2023; Srivastav & Panwar 2022), optical rectification (Lee et al. 2000; Yeh et al.…”