Frequency-dependent electrical transport under intense terahertz radiation

Zhang, C.

doi:10.1103/physrevb.66.081105

Cited by 30 publications

(8 citation statements)

References 17 publications

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“…An equivalent quantum formalism based on Floquet states can also be used to treat the problem of electron coupled to a boson field. The formalism was used previously in electron-photon coupling in graphene [90,91], electron transport in two-dimensional semiconductors [92], and article diffusion with electron-phonon scattering [93]. In the present system, the Floquet state includes electronphoton coupling to all orders and is an exact eigenstate of the Hamiltonian (1).…”

Section: Introductionmentioning

confidence: 99%

Nonlinear optical response of the α−T3 model due to the nontrivial topology of the band dispersion

Chen

Zuber

et al. 2019

Phys. Rev. B

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2019). Nonlinear optical response of the alpha-T-3 model due to the nontrivial topology of the band dispersion. Physical Review B, 100 (3), 035440-1-035440-16. Nonlinear optical response of the alpha-T-3 model due to the nontrivial topology of the band dispersion AbstractWe study the electronic contribution to the nonlinear optical response of the α-T3 model. This model is an interpolation between a graphene (α = 0) and dice (α = 1) lattice. Using a second-quantized formalism, we calculate the first-and third-order responses for a range of α and chemical potential values as well as considering a band gap in the first-order case. Conductivity quantization is observed for the first-order, while higher-order harmonic generation is observed in the third-order response with the chemical potential determining which applied field frequencies both quantization and harmonic generation occur at. We observe a range of experimentally accessible critical fields between 102-106 V/m with dynamics depending on α, μ, and the applied field frequency. Our results suggest an α-T3-like lattice could be an ideal candidate for use in terahertz devices.We study the electronic contribution to the nonlinear optical response of the α-T 3 model. This model is an interpolation between a graphene (α = 0) and dice (α = 1) lattice. Using a second-quantized formalism, we calculate the first-and third-order responses for a range of α and chemical potential values as well as considering a band gap in the first-order case. Conductivity quantization is observed for the first-order, while higher-order harmonic generation is observed in the third-order response with the chemical potential determining which applied field frequencies both quantization and harmonic generation occur at. We observe a range of experimentally accessible critical fields between 10 2 -10 6 V/m with dynamics depending on α, μ, and the applied field frequency. Our results suggest an α-T 3 -like lattice could be an ideal candidate for use in terahertz devices.

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Section: Introductionmentioning

confidence: 99%

Nonlinear optical response of the α−T3 model due to the nontrivial topology of the band dispersion

Chen

Zuber

et al. 2019

Phys. Rev. B

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“…9 However, so far the many-body interaction in resonant tunneling of terahertz QCLs that would affect the population dynamics has received little attention. 10 It is well known that the time-resolved study is a useful approach to investigate the ultrafast population dynamics in semiconductor optoelectronic devices. The analysis of the gain recovery process is very important for understanding the physical mechanism in the terahertz QCLs.…”

Section: Introductionmentioning

confidence: 99%

Many-body interaction in resonant tunneling of terahertz quantum cascade lasers

Wang

Guo

Cao

2010

Journal of Applied Physics

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“…netic eld A(r, t) is well known [32] but the problem of nonlinear PAT of electrons through the RTS with the exact accounting of vector potential is complicated enough because it demands to introduce the term: 1…”

Section: Introductionmentioning

confidence: 99%

Transmission Canals for the Photon-Assisted Transport of Electron through the Double-Barrier Resonant Tunneling Structure

2013

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The resonance and non-resonance transmission canals of double-barrier resonant tunneling structure are established for the electronphoton system using the exact solution of one-dimensional non-stationary Schrödinger equation expanded into the Fourier range. It is shown that besides the main and satellite, the mixed quasi-stationary states which cause the appearance of specic transmission canals with the properties strongly dependent on the intensity and frequency of electromagnetic eld, exist in the nanostructure.

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Frequency-dependent electrical transport under intense terahertz radiation

Cited by 30 publications

References 17 publications

Nonlinear optical response of the α−T3 model due to the nontrivial topology of the band dispersion

Nonlinear optical response of the α−T3 model due to the nontrivial topology of the band dispersion

Many-body interaction in resonant tunneling of terahertz quantum cascade lasers

Transmission Canals for the Photon-Assisted Transport of Electron through the Double-Barrier Resonant Tunneling Structure

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