Highly efficient, broadband coherent surface-mixing-wave generation using amplified surface plasmonic polaritons

Zhu, Chang Jun; Ren, Yuan; Zhao, Xiaopeng; Huang, Guoxiang; Deng, Lu; Hagley, Edward W.

doi:10.1063/1.4878406

Cited by 7 publications

(9 citation statements)

References 33 publications

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“…Parameters of the quantum emitter are ω p = 3.11 × 10 15 Hz, Γ 2 = 0.02 Hz, Γ 3 = 12 kHz, γ 21 = 10 kHz, γ 31 = γ 32 = 9 kHz, ∆ 2 = ∆ 3 = 0, Ω c = 2 GHz, N a = 4.7 × 10 18 cm −1 and κ 13 (0) = 1.55 × 10 11 s −1 cm −1 . Note that the inhomogeneous broadening at transitions |1 → |3 and |1 → |2 have generally Gaussian lineshapes, but for simplicity here they are approximated as Lorentzian ones 27 with the forms W 31 (21) /[π(W 2 31(21) + △ω 2 31 (21) )]. Here W 31 = 2 GHz and W 21 = 30 kHz are widths of the inhomogeneous broadening and △ω 31(21) are corresponding energy level shift, corresponding respectively to the transitions |1 → |3 and |1 → |2 .…”

Section: Resultsmentioning

confidence: 99%

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Storage and Retrieval of Surface Polaritons

Huang

2018

ACS Photonics

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We investigate the memory of surface polariton (SP) via the electromagnetically induced transparency (EIT) of quantum emitters doped at the interface between a dielectric and a metamaterial. We show that, due to the strong mode confinement provided by the interface, the EIT effect can be largely enhanced; furthermore, the storage and retrieval of the SP can be realized by switching off and on of a control laser field; additionally, the efficiency and fidelity of the SP memory can be improved much by using a weak microwave field. The results reported here are helpful not only for enhancing the understanding of SP property but also for promising applications in quantum information processing and transmission.KEYWORDS: electromagnetically induced transparency, surface polaritons, light storage In past two decades, considerable attention has been paid to the research on electromagnetically induced transparency (EIT), a typical quantum interference effect occurring in resonant three-level atomic gases. The light behavior in EIT systems possesses many striking features, including substantial suppression of optical absorption, significant slowdown of group velocity, excellent coherent control of the interaction between light and atoms at weak light level, and so on. 1One of important applications of EIT is light storage, which has important applications in quantum informatics. 2 The basic mechanism of EIT-based light storage is that the system allows a stable combined excitation (called dark-state polariton 3 ) contributed by atomic coherence together with a probe (or called signal) laser field, which displays an atomic character when a control laser field is switched off and a photonic character when the control field is switched on. The storage of probe optical pulses based on atomic EIT has been verified in many experiments. 4,5 Recently, the possibility of weak-light soliton memory in a cold atomic gas has also been suggested. 6Up to now most of works on EIT-based light storage were carried out in free atomic gases.Although there are some advantages (e.g., long coherence time), such EIT and light storage scheme require special and cumbersome conditions, such as large device size, which hamper compact chip-integrated applications. In contrast, solid media is on demand for practical applications because they are easy for device integration. Some materials (like quantum dots or dopant ions in solids) can combine advantages of atomic gases and solids to get long coherence time and large optical density. Thus the realization of the light storage based on such hybrid materials are more desirable comparing with the atomic gases in free space. 7,8 In recent years, much effort has been focused on the study of surface polaritons (SPs), i.e., polarized electromagnetic waves propagating along a metal-dielectric interface with the wave coupled to charge density oscillations. 9 SPs produced in metal-dielectric interfaces doped with quantum emitters have also been considered in many studies. [10][11][12][13][14][15][16][17][18][19...

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Section: Resultsmentioning

confidence: 99%

“…9 SPs produced in metal-dielectric interfaces doped with quantum emitters have also been considered in many studies. [10][11][12][13][14][15][16][17][18][19][20][21] In the work by Kamli et al,22,23 an interesting scheme was proposed for realizing a coherent control…”

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confidence: 99%

Storage and Retrieval of Surface Polaritons

Huang

2018

ACS Photonics

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“…Recently, the resonant interaction between light and quantum emitters doped at metal-dielectric interfaces has become an active research field, which involves quantum-mechanical control of SPPs at subwavelength scales and quantum optical applications including the design of active plasmonic devices [3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…Although the gain provided by the quantum emitters can be used to compensate the loss in the metal, restrictions still exist for increasing the SPP propagation length and obtaining high quantum efficiency [5]. Several different proposals based on doped multiple-level quantum emitters in plasmonic structures have also been suggested [14,15].…”

Section: Introductionmentioning

confidence: 99%

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Surface polaritons in a negative-index metamaterial with active Raman gain

Tan

Huang

2015

Phys. Rev. A

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We propose a scheme to realize stable propagation of linear and nonlinear surface polaritons (SPs) by placing a N -type four-level quantum emitters at the interface between a dielectric and a negative-index metamaterial (NIMM). We show that in linear propagation regime SPs can acquire an active Raman gain (ARG) from a pump field and a gain doublet appears in the gain spectrum of a signal field induced by the quantum interference effect from a control field. The ARG can be used not only to completely compensate the Ohmic loss in the NIMM but also to acquire a superluminal group velocity for the SPs. We also show that in the nonlinear propagation regime a huge enhancement of the Kerr nonlinearity of the SPs can be obtained. As a result, ARG-assisted (1 + 1)-and (2 + 1)-dimensional superluminal surface polaritonic solitons with extremely low generation power may be produced based on the strong confinement of the electric field at the dielectric-NIMM interface.

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