Spatially Structured Optical Effects in a Four‐Level Quantum System Near a Plasmonic Nanostructure

Hamedi, Hamid Reza; Yannopapas, Vassilios; Paspalakis, Emmanuel

doi:10.1002/andp.202100117

Cited by 12 publications

(4 citation statements)

References 82 publications

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“…Characterized by a distinct phase factor, optical vortex beams of this nature exhibit intriguing behavior when interacting with atoms. Some of the remarkable effects include light-induced torque [33,34], atom vortex beams [35], entanglement of OAM states in photon pairs [36], OAM-based FWM [37,38], and spatially structured optical phenomena [39][40][41][42][43][44]. Additionally, the transfer of OAM between light and matter has also been investigated [45][46][47][48][49][50].…”

Section: Introductionmentioning

confidence: 99%

Spatially structured optical effects in semiconductor quantum dots via biexciton coherence

Batoo,

Al-Dolaimy,

Zaid

et al. 2023

Laser Phys.

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In this paper, we study the spatially structured optical effects that occur when weak laser lights interact with coherently prepared semiconductor quantum dots (SQDs). Initially, the SQD is prepared in a coherent superposition of the lower exciton states. By utilizing two weak optical vortex fields that couple to a biexciton state, we observe spatially dependent effects of the absorption of probe fields. Using the well-established Maxwell–Bloch equations, we analyze the generation of composite optical vortex beams within this system. Our investigation revolves around the formation of different types of spatially dependent beams, exploring their properties and characteristics. Additionally, the transfer of optical vortices through the parametric generation process is examined, for the case where only one vortex beam is present at the beginning of the medium. This study provides insights into the spatially structured optical phenomena in coherently prepared SQDs and contributes to the understanding of light–matter interactions in such systems.

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Section: Introductionmentioning

confidence: 99%

Spatially structured optical effects in semiconductor quantum dots via biexciton coherence

Batoo,

Al-Dolaimy,

Zaid

et al. 2023

Laser Phys.

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“…One of the most important * Author to whom any correspondence should be addressed. phenomena that has many applications in quantum systems is related to the position-dependent coherent optical effect [7][8][9][10][11]. Numerous quantum optical phenomena, including electromagnetically induced transparency [6], lasing without inversion [12], multi-wave mixing [13], increasing Kerr nonlinearity [14][15][16], optical soliton [4], optical bistability and multi-stability [17][18][19], and others [20][21][22][23][24][25] have attracted the interest of many researchers.…”

Section: Introductionmentioning

confidence: 99%

Transmission and Reflection properties of the incident Light via SW coherent laser field

Smait,

Khalil,

Bashar

et al. 2023

Laser Phys. Lett.

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The relative phase of the applied lights has been used to explore the position dependence of the transmitted and reflected light from a defective dielectric medium. The duplicated two-level atomic system that makes up the dielectric medium interacts with a position-dependent standing wave (SW) coupling light and a weak probe laser field. We found that identical behaviors can be produced for the transmitted and reflected light in various directions due to the relative phase of the applied light. Furthermore, we understood that the transmitted and reflected spectra of the incident light become asymmetric for the asymmetric profile of the coupling light, and that these circumstances will cause the probing field to be amplified. In this instance, we found that altering the relative phase of the applied lights can modify the position of the subluminal and superluminal light.

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“…In 2015, Radwell et al experimentally observed spatially dependent electromagnetically induced transparency via utilizing optical vortex beams to drive cold rubidium atoms [40]. Subsequently, numerous schemes for the spatially dependent light-matter interaction induced by LG beams have been proposed in cold atomic ensembles [41], rareearth-doped crystal [42], two-dimensional array of metal-coated dielectric nanosphere [43], semiconductor quantum dots [44], and molecular magnets [45]. Meanwhile, many intriguing quantum optical phenomena have been discovered such as vortex-induced spatial absorption [46,47], spatially structured Kerr nonlinearity [39], ultraprecise Rydberg atomic localization [48], vortex four-wave mixing (FWM) [44,45,49,50,51,52], and spatially dependent hyper Raman scattering [53].…”

Section: Introductionmentioning

confidence: 99%

Coherent Control of Perfect Optical Vortex Through Four-Wave Mixing in an Asymmetric Semiconductor Double Quantum Well

2022

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A scheme for the coherent control of perfect optical vortex (POV) in an asymmetric semiconductor double quantum well (SDQW) nanostructure is proposed by exploiting the tunneling-induced highly efficient four-wave mixing (FWM). The orbital angular momentum (OAM) is completely transferred from a unique POV mode to the generated FWM field. Using experimentally achievable parameters, we identify the conditions under which resonant tunneling allows us to improve the quality of the vortex FWM field and engineer helical phase wave front beyond what is achievable in the absence of resonant tunneling. Furthermore, we find that the intensity and phase patterns of the vortex FWM field are sensitive to the detuning of the probe field but rather robust against the detuning of the coupling field. Subsequently, we perform the coaxial interference between the vortex FWM field and a same-frequency POV beam and show interesting interference properties, which allow us to measure the topological charge of the output POV beam. Our result may find potential applications in quantum technologies based on POV in solids.

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Spatially Structured Optical Effects in a Four‐Level Quantum System Near a Plasmonic Nanostructure

Cited by 12 publications

References 82 publications

Spatially structured optical effects in semiconductor quantum dots via biexciton coherence

Spatially structured optical effects in semiconductor quantum dots via biexciton coherence

Transmission and Reflection properties of the incident Light via SW coherent laser field

Coherent Control of Perfect Optical Vortex Through Four-Wave Mixing in an Asymmetric Semiconductor Double Quantum Well

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