Linear mode conversion of terahertz radiation into terahertz surface magnetoplasmons on a rippled surface of magnetized n-InSb

Kumar, Pawan; Kumar, Manish; Tripathi, V. K.

doi:10.1364/ol.41.001408

Cited by 18 publications

(8 citation statements)

References 28 publications

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“…Another proof of GOD's communication with the living/non-living matter was given by Kumar et al [2]. In this paper Kumar et al has shown that any radiation falling on the rippled surface under the presence of magnetic field get converted into surface magnetoplasmons, so from this inference can be easily drawn how life is affected by universal phenomenon as every matter radiates its own energy in the form of radiation depending upon its characteristic and thus affect the life.…”

Section: Introductionmentioning

confidence: 93%

Atomic Energy as well as Gravitational Energy is Another form of Electrical Energy

Kumar¹

2017

JMSS

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Atomic energy is the source of power which is another form of electrical energy. This electrical energy is basically the fundamental energy which is the source of all other energy known to world. We can say that from the prediction of genius Albert Einstein for the unification of forces it is the electrical force that is the root cause of all other forces. When a charge particle moves it produces magnetic force i.e. electrical energy is converted to magnetic energy and charge particle has only electrical energy only. It is the movement of electrical energy that leads to generation of magnetic energy according to the Maxwell's law. Since these forces are long range forces so when they follow the Maxwell's law leads to generation of electromagnetic radiation. The weak and strong nuclear forces discovered which is the cause for binding sub-atomic particles into the nucleus is nothing but the electrical energy being converted into sub-atomic particles due to the conversion of electrical energy into mass with the electrical charge of positive and negative character depending upon the orientation of electrical energy into clockwise or anticlockwise direction. The packing of electrical energy into mass is governed by the anti-law that leads the conversion of mass into energy in the atomic energy given by Einstein's famous relation E = mc 2 .

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Section: Introductionmentioning

confidence: 93%

Atomic Energy as well as Gravitational Energy is Another form of Electrical Energy

Kumar¹

2017

JMSS

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“…Let us assume a x = 0 is a interface of rippled n-type semiconductor ( x ≤ 0) and free space (x > 0), and n-type semiconductor rippled surface with modulated perturbed electron density n = (n 0 /2)(1+cos qz) [20], qa ≥ 1, q and a are the rippled wave number and amplitude of the rippled respectively in the existence of external magnetic B 0 ŷ (cf. Fig.…”

Section: Nonlinear Current Densitymentioning

confidence: 99%

“…Bhasin and Tripathi [19] analytically examined the THz generation by optical rectification on the rippled density of the magnetized plasma. 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.…”

Section: Introductionmentioning

confidence: 99%

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

Srivastav

Panwar²

2022

Opt Quant Electron

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We investigated the excitation of terahertz (THz) surface magneto plasmons (SMPs) by nonlinear mixing of laser and its frequency shifted second harmonic on a rippled surface of n-type semiconductor-free space interface. Obliquely incident p-polarized lasers exert a nonlinear ponderomotive force on free electrons of n-type semiconductor. Nonlinear ponderomotive force induce the oscillatory velocities at frequencies 2ω1 and (ω1 − ω2). These oscillatory velocities beat the modulated electron density nq to get the charge density perturbation at (2ω1, 2k1z + q) and (ω1 − ω2, k1z − k2z + q). Perturbed charge density couples with the linear oscillatory velocities to produce a nonlinear current density, which resonantly derives THz SMPs at frequency ω = 2ω1 − ω2 and propagation constant kz = 2k1z − k2z + q. Here, q provides the extra wave number for the phase matching condition. The efficiency of THz SMPs wave attained up to 9% and amplitude of THz SMPs controlled by the electron cyclotron frequency ωce and incident angle θ.

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“…The transmission, polarization, and magnetooptical properties of InSb have been widely investigated in recent years. [31][32][33][34][35][36][37][38][39][40][41][42] For instance, in 2018, Lin et al [36] reported a nonreciprocal THz reflection on the InSb with the transverse magneto-optical effect (i.e., Voigt configuration). This one-way mirror achieves 35 dB isolation with 6.2 dB insertion loss for a certain linearly polarized (LP) state.…”

Section: Introductionmentioning

confidence: 99%

“…The transmission, polarization, and magneto‐optical properties of InSb have been widely investigated in recent years. [ 31–42 ] For instance, in 2018, Lin et al. [ 36 ] reported a nonreciprocal THz reflection on the InSb with the transverse magneto‐optical effect (i.e., Voigt configuration).…”

Section: Introductionmentioning

confidence: 99%

High‐Efficiency Terahertz Nonreciprocal One‐Way Transmission and Active Asymmetric Chiral Manipulation Based on Magnetoplasmon/Dielectric Metasurface

Tan

Fan

Zhao

et al. 2021

Advanced Optical Materials

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The lack of low‐loss and high‐efficiency nonreciprocal isolators has become one of the limitations in the development of terahertz (THz) application systems. This work demonstrates that the longitudinally magnetized InSb can achieve one‐way transmission for one photonic spin state but not for linear polarization (LP) state due to the chiral mirror‐symmetry of the two spin states. To solve this issue, a silicon microstructure is fabricated on the InSb substrate to form a magnetoplasmon/dielectric metasurface, where both the time‐reversal and mirror‐reversal symmetric transmission of the two spin states can be broken. In this device, the forward LP state is efficiently transformed into one of the spin states and output with low loss, but the backward wave is forbidden, which achieves the one‐way transmission for the LP incidence with over 30 dB isolation and only 1.7 dB insertion loss. When a THz polarizer is added behind the device to obtain the LP output, the isolation can reach 40 dB, significantly better than the previous reports. This study is significant to understand the nonreciprocal transmission and manipulation mechanism of THz spin states in the magnetized semiconductor and promotes the development of high‐performance THz isolators under the weak magnetic field.

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Linear mode conversion of terahertz radiation into terahertz surface magnetoplasmons on a rippled surface of magnetized n-InSb

Cited by 18 publications

References 28 publications

Atomic Energy as well as Gravitational Energy is Another form of Electrical Energy

Atomic Energy as well as Gravitational Energy is Another form of Electrical Energy

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

High‐Efficiency Terahertz Nonreciprocal One‐Way Transmission and Active Asymmetric Chiral Manipulation Based on Magnetoplasmon/Dielectric Metasurface

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