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Journal articles on the topic 'Exciton-photon interaction'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Mareyen, M., F. J. Schütte, and R. Tiebel. "Dynamics of Carrier-Screened Photon-Exciton Interaction." physica status solidi (b) 159, no. 1 (1990): 235–40. http://dx.doi.org/10.1002/pssb.2221590127.

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2

KAIBYSHEV, V. H., and V. V. TRAVNIKOV. "ANOMALOUS ANISOTROPY OF RESONANT RAMAN SCATTERING IN OPEN ZnCdSe/ZnSe NANOWIRES." International Journal of Nanoscience 02, no. 06 (2003): 479–85. http://dx.doi.org/10.1142/s0219581x03001589.

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Anomalous strong linear anisotropy of resonant Raman scattering in open ZnCdSe / ZnSe nanowires has been found. The anisotropy value is more than twice as that due to the anisotropy of exciton–photon interaction which is the characteristic for open nanowires. It is suggested that the anomalous anisotropy is connected with different probability of Frohlich exciton–LO phonon interaction at scattering via transverse and longitudinal exciton states.

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3

Calvo, Jorge, David Zueco, and Luis Martin-Moreno. "Ultrastrong coupling effects in molecular cavity QED." Nanophotonics 9, no. 2 (2020): 277–81. http://dx.doi.org/10.1515/nanoph-2019-0403.

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AbstractThe spectrum and energy dynamics for a system that comprises a molecule interacting with a cavity photon is analyzed, taking into account the effect of both molecular vibrations and counter-rotating terms (CR) in the dipole Hamiltonian. The CR terms do not have a strong effect on the spectrum even for moderately large values of the exciton-photon interaction. However, it is shown that the polariton subspace is governed by an effective Quantum-Rabi Hamiltonian, where polaritons act as a two-level system and the phonons play the role of cavity photons. The effect of the CR terms is ampli

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4

Tartakovskii, A. I., V. D. Kulakovskii, Yu I. Koval’, T. B. Borzenko, A. Forchel, and J. P. Reithmaier. "Exciton-photon interaction in low-dimensional semiconductor microcavities." Journal of Experimental and Theoretical Physics 87, no. 4 (1998): 723–30. http://dx.doi.org/10.1134/1.558714.

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5

Tredicucci, Alessandro, Yong Chen, Vittorio Pellegrini, et al. "Controlled Exciton-Photon Interaction in Semiconductor Bulk Microcavities." Physical Review Letters 75, no. 21 (1995): 3906–9. http://dx.doi.org/10.1103/physrevlett.75.3906.

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6

Arnold, Michael S. "(Invited) Hybridization of Dark Excitons, Bright Excitons, and Photons in an Ultrastrongly Coupled Carbon Nanotube Microcavity and the Importance of Sub-Radiant Polariton States during Relaxation." ECS Meeting Abstracts MA2022-01, no. 9 (2022): 745. http://dx.doi.org/10.1149/ma2022-019745mtgabs.

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This talk will present on strong light-matter interaction in optical microcavities incorporating dense semiconducting carbon nanotubes, characterizing hybridization of the bright and dark exciton states of nanotubes, mediated by a cavity photon plus exciton-phonon coupling. This talk will also present on the relaxation of optically excited, bright polariton modes into sub-radiant dark polaritons.

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7

Li, Bin, Guo-Feng Zhang, Rui-Yun Chen, et al. "Research progress of single quantum-dot spectroscopy and exciton dynamics." Acta Physica Sinica 71, no. 6 (2022): 067802. http://dx.doi.org/10.7498/aps.71.20212050.

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Colloidal semiconductor quantum dots (QDs) have strong light absorption, continuously adjustable narrowband emission, and high photoluminescence quantum yields, thereby making them promising materials for light-emitting diodes, solar cells, detectors, and lasers. Single-QD photoluminescence spectroscopy can remove the ensemble average to reveal the structure information and exciton dynamics of QD materials at a single-particle level. The study of single-QD spectroscopy can provide guidelines for rationally designing the QDs and giving the mechanism basis for QD-based applications. We can also

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8

Bamba, Motoaki, and Hajime Ishihara. "Breakdown of Fermi's Golden Rule in Exciton–Photon Interaction." Journal of the Physical Society of Japan 78, no. 4 (2009): 043701. http://dx.doi.org/10.1143/jpsj.78.043701.

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9

Cao, En, Weihua Lin, Mengtao Sun, Wenjie Liang, and Yuzhi Song. "Exciton-plasmon coupling interactions: from principle to applications." Nanophotonics 7, no. 1 (2018): 145–67. http://dx.doi.org/10.1515/nanoph-2017-0059.

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AbstractThe interaction of exciton-plasmon coupling and the conversion of exciton-plasmon-photon have been widely investigated experimentally and theoretically. In this review, we introduce the exciton-plasmon interaction from basic principle to applications. There are two kinds of exciton-plasmon coupling, which demonstrate different optical properties. The strong exciton-plasmon coupling results in two new mixed states of light and matter separated energetically by a Rabi splitting that exhibits a characteristic anticrossing behavior of the exciton-LSP energy tuning. Compared to strong coupl

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10

MIZOUCHI, H. "INITIAL CONDITION SENSITIVITY IN LATTICE RELAXATION AND DOMAIN FORMATION AFTER PHOTOEXCITATION." International Journal of Modern Physics B 15, no. 28n30 (2001): 3869–72. http://dx.doi.org/10.1142/s0217979201008871.

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We theoretically study the lattice relaxation dynamics of a photogenerated exciton resulting in the macroscopic domain. Especially, we concentrate on the "initial condition sensitivity" of the exciton proliferation. This characteristic is as follows. The generation efficiency of the domain depends sensitively on the way of the initial photoexcitation, even if the total photon energy is same. We consider the 1-dimensional many exciton-Einstein phonon system interacting with a reservoir. Within the Markov approximation, the time evolution of the density matrix is investigated full-quantummechani

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11

Jütte, M., H. Stolz, and W. von der Osten. "Coherent exciton–photon interaction and pulse propagation effects of bound exciton states in CdS." physica status solidi (b) 188, no. 1 (1995): 327–34. http://dx.doi.org/10.1002/pssb.2221880130.

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12

Nji Nde Aboringong, E., I. Ndifon Ngek, and Alain M. Dikandé. "Periodic exciton–polariton solitons in semiconductor nanowires." Modern Physics Letters B 35, no. 18 (2021): 2150307. http://dx.doi.org/10.1142/s0217984921503073.

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Exciton–polariton solitons are nonlinear quasiparticles composed of exciton–photon bound states due to the interaction of light with matter. In semiconductor micro-cavity systems, such as semiconductor micro and nanowires, polaritons are characterized by a negative mass which, combined with the repulsive nonlinear exciton–exciton interaction, leads to the generation of bright polariton solitons. In this work, we investigate the dynamics of bright exciton–polariton solitons in a finite-sized microcavity waveguide, assuming radiative losses to be balanced by the external pumping. Bright-soliton

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13

Kuroki, Yuichiro, Minoru Osada, Ariyuki Kato, Tomoichiro Okamoto, and Masasuke Takata. "Exciton-Phonon Interaction in CuAlS₂ Powders." Advanced Materials Research 11-12 (February 2006): 175–78. http://dx.doi.org/10.4028/www.scientific.net/amr.11-12.175.

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High-resolution photoluminescence (PL) measurement was carried out for copper aluminum disulfide (CuAlS2) powder at 12 K. Several sharp PL lines were observed in the range from 3.580 to 3.320 eV. The emission peaks at photon energies from 3.566 to 3.459 eV were attributed to free-exciton (FE) and bound-excitons (BE). The several weak emissions at below 3.476 eV were clarified to be phonon replicas (PR) by Raman scattering and in the viewpoint of exciton-phonon interaction. We observed the one, two and three-phonon replicas related to E(LO, TO) and B2(LO, TO) vibrational modes in chalcopyrite s

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14

AlAhmadi, Ameenah N. "Förster Blockade and Excitation Transfer Behaviors of Two-Photon Rabi Oscillations of Exciton–Biexciton Levels in Coupled Quantum Dots." Journal of Nanomaterials 2023 (February 12, 2023): 1–8. http://dx.doi.org/10.1155/2023/4662648.

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We provide a theoretical study for the dynamical behavior of two-photon Rabi oscillations in two coupled quantum dots. Each dot is a three-level quantum system (ground, one-exciton, and biexciton states). We describe the optical dynamics within the density matrix formalism framework. The two-photon Rabi oscillations are found to be significantly affected by the strength of the interdot dipolar interaction. Using a detuned laser pulse with an exciton state of the driven quantum dot in our numerical simulations, a direct coherent excitation between the biexciton states can be established, but wh

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15

Gubin, Mikhail, and Alexei Prokhorov. "Formation of non-classical optical states in spaser systems under control of an external magnetic field." EPJ Web of Conferences 220 (2019): 03017. http://dx.doi.org/10.1051/epjconf/201922003017.

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The work is focused on the investigation of features of quantum dynamics for photons in spaser systems consisting of metal nanoparticles (NP) and semiconductor quantum dots (QDs). The non-classical photon states generation in a three-particle spaser system with nonlinear plasmon-exciton interaction is predicted.

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16

Diguna, Lina Jaya, Yudi Darma, and Muhammad Danang Birowosuto. "The coupling of single-photon exciton–biexciton quantum dot and cavity." Journal of Nonlinear Optical Physics & Materials 26, no. 03 (2017): 1750029. http://dx.doi.org/10.1142/s0218863517500291.

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We investigate the influence of multiple excitons on the photon emission properties of a quantum dot (QD)-cavity system via the master equation for the density matrix. We show that in the intermediate to strong coupling regimes, the multiple excitons lead to the suppressed QD emissions as well as the absence of anti-crossing near zero detuning, arising from the interaction between the multiple excitons and cavity. Furthermore, we analyze the role of the cavity-biexciton detuning in the photon emission properties of cavity and exciton through the second-order correlation function. The small cav

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17

Хаджи, П. И., Л. Ю. Надькин та Д. А. Марков. "Закон дисперсии экситон-поляритонов в условиях действия сильной накачки в области M-полосы люминесценции". Физика твердого тела 60, № 4 (2018): 660. http://dx.doi.org/10.21883/ftt.2018.04.45671.224.

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AbstractThe double-pulse interaction with excitons and biexcitons in semiconductors is studied theoretically. It is shown that the dispersion law of carrier wave has three branches under the action of a powerful pumping in the region of the M -band of luminescence. Values of parameters at which the dispersion law branches can intersect due to the degeneration of the exciton level energy have been found. The effect of a significant change in the force of coupling between the exciton and photon of a weak pulse with a change in the pumping intensity is predicted.

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18

Suhai, S. "Theory of exciton–photon interaction in polymers: Polariton spectra of polydiacetylenes." Journal of Chemical Physics 85, no. 1 (1986): 611–15. http://dx.doi.org/10.1063/1.451586.

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19

Fujita, Hideaki, Hisao Kondo, Hitoshi Nishimura, Takeyuki Okada, Tsutomu Karasawa, and Teruo Komatsu. "Exciton-phonon interaction in the two-photon absorption process in RbI." Journal of Luminescence 51, no. 4 (1992): 167–73. http://dx.doi.org/10.1016/0022-2313(92)90051-a.

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20

Kurisu, H., J. Horie, K. Nagoya, S. Yamamoto, and M. Matsuura. "Enhancement of Exciton and Biexciton Luminescence in CuCl QDs on Dielectric Multilayers." International Journal of Modern Physics B 15, no. 28n30 (2001): 3841–44. http://dx.doi.org/10.1142/s0217979201008809.

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We investigated photoluminescence properties of the exciton and the biexciton in CuCl quantum dots embedded in an SiO 2 matrix on (λ/4) TiO 2/(λ/4) SiO 2 dielectric multilayers of the distributed Bragg reflector. The intensities of the free exciton luminescence band and the biexciton luminescence bands are enhanced by factors 2 and 6 times in comparison with those in only CuCl quantum dots embedded in an SiO 2 matrix. The origin of this luminescence behavior is partly reflection effects of the luminescence and excitation laser lights but additional effects need to be considered. One possible c

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21

Narayan, Monishka Rita, and Jai Singh. "Exciton dissociation and design optimization in P3HT:PCBM bulk-heterojunction organic solar cell." Canadian Journal of Physics 92, no. 7/8 (2014): 853–56. http://dx.doi.org/10.1139/cjp-2013-0523.

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The rate of Frenkel exciton dissociation in P3HT:PCBM bulk-heterojunction organic solar cell was calculated using the newly derived interaction operator between charge transfer exciton and molecular vibrational energy. The PCBM LUMO energy levels were tuned to investigate their impact on the rate of dissociation of a Frenkel exciton into free pair of electron and hole. In the latter part of the study, the PCBM LUMO energy level was set to −4.10 eV and design optimization was performed on PET/PEDOT:PSS/TFB/ P3HT:PCBM/Ca bulk-heterojunction organic solar cell using the semiconducting thin film o

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22

Díaz-Ramírez, Jaime David, Shiang-Yu Huang, Bo-Long Cheng, Ping-Yuan Lo, Shun-Jen Cheng, and Hanz Yecid Ramírez-Gómez. "Composed Effects of Electron-Hole Exchange and Near-Field Interaction in Quantum-Dot-Confined Radiative Dipoles." Condensed Matter 8, no. 3 (2023): 84. http://dx.doi.org/10.3390/condmat8030084.

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Conservation of polarization is an important requirement for reliable single-photon emitters, which, in turn, are essential building blocks for light-based quantum information processing. In this work, we study the exciton-spin dynamics in a double quantum dot under the combined effects of electron-hole exchange and Förster resonance energy transfer. By means of numerical solutions of the quantum master equation, we simulate the time-dependent spin polarization for two neighboring dots. According to our results, under some conditions, the depolarization caused by the electron-hole exchange may

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23

Sodagar, Majid, Milad Khoshnegar, Amin Eftekharian, and Sina Khorasani. "Exciton–photon interaction in a quantum dot embedded in a photonic microcavity." Journal of Physics B: Atomic, Molecular and Optical Physics 42, no. 8 (2009): 085402. http://dx.doi.org/10.1088/0953-4075/42/8/085402.

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24

Tredicucci, Alessandro. "Bulk semiconductors and porous silicon: controlled exciton–photon interaction in active microcavities." Physica Scripta T66 (January 1, 1996): 126–29. http://dx.doi.org/10.1088/0031-8949/1996/t66/020.

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25

Gavrilov, S. Yu, A. M. Smirnov, M. V. Kozlova, R. B. Vasil'ev, and V. S. Dneprovskiy. "Nelineynoe pogloshchenie i fotolyuminestsentsiya nanotetrapodov CdTe s nakonechnikami CdSe pri nerezonansnom vozbuzhdenii eksitonov." Журнал экспериментальной и теоретической физики 163, no. 5 (2023): 621–27. http://dx.doi.org/10.31857/s0044451023050012.

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The nonlinear absorption and photoluminescence of CdTe/CdSe nanotetrapod colloids have been studied by the pump–probe method for the case of single-photon nonresonance excitation of excitons. A competition between the short-wave and long-wave shifts of the peak of photoluminescence associated with an indirect electron–hole transition, which is observed with increasing excitation radiation intensity, has been found and explained. The former shift is associated with an increase in the one-dimensional exciton radius after the exciton state occupation, and the latter shift may be attributed to the

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26

Chahshouri, Fatemeh, Masoud Taleb, Florian K. Diekmann, Kai Rossnagel, and Nahid Talebi. "Interaction of excitons with Cherenkov radiation in WSe₂ beyond the non-recoil approximation." Journal of Physics D: Applied Physics 55, no. 14 (2022): 145101. http://dx.doi.org/10.1088/1361-6463/ac453a.

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Abstract Cherenkov radiation (CR) from electrons propagating in materials with a high refractive index have applications in particle-detection mechanisms and could be used for high-yield coherent electron beam-driven photon sources. However, the theory of the CR has been treated up to now using the non-recoil approximation, which neglects the effect of electron deceleration in materials. Here, we report on the effect of electron-beam deceleration on the radiated spectrum and exciton-photon interactions in nm-thick WSe2 crystals. The calculation of the CR is performed by simulating the kinetic

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27

Klochikin, A. A., B. S. Razbirin, T. Amand, et al. "Influence of the LO-photon-plasmon interaction on the exciton luminescence of insulators." Journal of Physics C: Solid State Physics 19, no. 22 (1986): 4237–46. http://dx.doi.org/10.1088/0022-3719/19/22/011.

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28

VACHA, MARTIN, SHOJI TAKEI, KEN-ICHI HASHIZUME, and TOSHIRO TANI. "LOCAL MORPHOLOGY AND SUB-WAVELENGTH REGION SPECTROSCOPY OF MOLECULAR J-AGGREGATES: ONSET OF EXCITON-POLARITON STATES IN INDIVIDUAL AGGREGATE FIBERS." International Journal of Modern Physics B 15, no. 28n30 (2001): 3993–96. http://dx.doi.org/10.1142/s0217979201009189.

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We present results on reflection microscopy and local spectroscopy of J-aggregates of pseudoisocyanine dyes in a thin film polymer matrix. Local reflectance spectra reveal a wide distribution of optical properties within different locations of one sample. The spectral lineshapes and absolute reflectivities are suggested to originate from varying strength of exciton-photon interaction. Polarization dependence measurements of local reflectivities at different wavelengths provide orientations of the excitonic transition dipole moments with respect to the orientation of the aggregate fibers.

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29

Stolyarchuk, I. D., and O. A. Shporta. "Optical Studies of the Interactions CdS and CdTe Nanoparticles with a Human Serum Albumin." Фізика і хімія твердого тіла 17, no. 4 (2016): 498–503. http://dx.doi.org/10.15330/pcss.17.4.498-503.

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The interaction between CdS , CdTe nanoparticles and human serum albumin (HSA) was studied by absorption and photoluminescence spectroscopy. The performed transmission electron microscopy (TEM) analysis suggests of spherical shape of nanostructures with small size distribution. In the absorption spectra of the colloidal nanoparticles exciton band was found to be shifted to higher photon energy as compared with that for bulk crystals due to the quantum confinement effect. It was shown that addition of HSA to colloidal nanocrystals leds to a gradual decrease of absorption and broadening of excit

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30

Opher-Lipson, M., E. Cohen, and L. N. Pfeiffer. "Spectral line splitting due to exciton-photon interaction in GaAs/AlAs multiple quantum wells." Physical Review B 55, no. 20 (1997): 13778–82. http://dx.doi.org/10.1103/physrevb.55.13778.

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31

Burdov, Vladimir A., and Mikhail I. Vasilevskiy. "Exciton-Photon Interactions in Semiconductor Nanocrystals: Radiative Transitions, Non-Radiative Processes and Environment Effects." Applied Sciences 11, no. 2 (2021): 497. http://dx.doi.org/10.3390/app11020497.

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In this review, we discuss several fundamental processes taking place in semiconductor nanocrystals (quantum dots (QDs)) when their electron subsystem interacts with electromagnetic (EM) radiation. The physical phenomena of light emission and EM energy transfer from a QD exciton to other electronic systems such as neighbouring nanocrystals and polarisable 3D (semi-infinite dielectric or metal) and 2D (graphene) materials are considered. In particular, emission decay and FRET rates near a plane interface between two dielectrics or a dielectric and a metal are discussed and their dependence upon

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32

Dietrich, Christof P., Anja Steude, Laura Tropf, et al. "An exciton-polariton laser based on biologically produced fluorescent protein." Science Advances 2, no. 8 (2016): e1600666. http://dx.doi.org/10.1126/sciadv.1600666.

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Under adequate conditions, cavity polaritons form a macroscopic coherent quantum state, known as polariton condensate. Compared to Wannier-Mott excitons in inorganic semiconductors, the localized Frenkel excitons in organic emitter materials show weaker interaction with each other but stronger coupling to light, which recently enabled the first realization of a polariton condensate at room temperature. However, this required ultrafast optical pumping, which limits the applications of organic polariton condensates. We demonstrate room temperature polariton condensates of cavity polaritons in si

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33

Brotons-Gisbert, Mauro, Juan P. Martínez-Pastor, Guillem C. Ballesteros, Brian D. Gerardot, and Juan F. Sánchez-Royo. "Engineering light emission of two-dimensional materials in both the weak and strong coupling regimes." Nanophotonics 7, no. 1 (2018): 253–67. http://dx.doi.org/10.1515/nanoph-2017-0041.

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AbstractTwo-dimensional (2D) materials have promising applications in optoelectronics, photonics, and quantum technologies. However, their intrinsically low light absorption limits their performance, and potential devices must be accurately engineered for optimal operation. Here, we apply a transfer matrix-based source-term method to optimize light absorption and emission in 2D materials and related devices in weak and strong coupling regimes. The implemented analytical model accurately accounts for experimental results reported for representative 2D materials such as graphene and MoS2. The mo

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34

Mauro, Brotons i. Gisbert, Juan P. Martínez-Pastor, Garcia Guillem Ballesteros, Brian Gerardot, and Royo Juan Francisco Sánchez. "Engineering light emission of two-dimensional materials in both the weak and strong coupling regimes." Nanophotonics 7 (January 7, 2018): 253–67. https://doi.org/10.5281/zenodo.10648095.

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Two-dimensional (2D) materials have promising applications in optoelectronics, photonics, and quantum technologies. However, their intrinsically low light absorptionlimits their performance, and potential devices must be accurately engineered for optimal operation. Here, we apply a transfer matrix-based source-term method to optimize light absorption and emission in 2D materials and related devices in weak and strong coupling regimes. The implemented analytical model accurately accounts forexperimental results reported for representative 2D materials such as graphene and MoS2. The model has be

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35

Yuan, Xiao-Jie, Ping Dong, Min Wang, Ming Yang, and Zhuo-Liang Cao. "Remote quantum state preparation and transfer with the interactions of photons and quantum-dot spins." Modern Physics Letters B 28, no. 16 (2014): 1450127. http://dx.doi.org/10.1142/s0217984914501279.

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In this paper, we propose a scheme of remote quantum state preparation and transfer that use a double-sided cavity system, in which a singly charged quantum dot is embedded in a double-sided optical microcavity with partially reflective top and bottom mirrors. The implementation of the scheme mainly depends on the interaction between the input single-photon pulse and the spins of electrons in the coupling system. Discussions about the effect of the cavity loss, side leakage and exciton–cavity coupling strength for the fidelity of generated states show that the fidelity can remain high enough b

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36

Popov, I. I., I. A. Arkhireev, N. S. Vashurin, et al. "Study of the trion spectral lines broadening in the thin Si(p)/Si(b)/ZnO film caused by the exciton-phonon interaction and other factors." EPJ Web of Conferences 220 (2019): 01009. http://dx.doi.org/10.1051/epjconf/201922001009.

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Experiments were carried out to study the contribution of the phonon wing to the uniform width of exciton states localized at room temperature on surface defects of the crystal lattice of thin single-layer and three-layer films. Technological studies were carried out to reproduce the parameters of a three-layer thin textured Si (P) / Si (B) / ZnO film to create a technology for the production of femtosecond time interval recorders based on the non-Faraday rotation of the polarized vector of the stimulated photon echo. The results of technological methods for studying the physics of the formati

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37

Hu, Shengmin, Jialiang Ye, Ruiqi Liu, and Xinhui Zhang. "Valley dynamics of different excitonic states in monolayer WSe₂ grown by molecular beam epitaxy." Journal of Semiconductors 43, no. 8 (2022): 082001. http://dx.doi.org/10.1088/1674-4926/43/8/082001.

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Abstract Monolayer transition-metal dichalcogenides possess rich excitonic physics and unique valley-contrasting optical selection rule, and offer a great platform for long spin/valley lifetime engineering and the associated spin/valleytronics exploration. Using two-color time-resolved Kerr rotation and time-resolved reflectivity spectroscopy, we investigate the spin/valley dynamics of different excitonic states in monolayer WSe2 grown by molecular beam epitaxy. With fine tuning of the photon energy of both pump and probe beams, the valley relaxation process for the neutral excitons and trions

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38

Nabiev, I. "Strong light-matter coupling for optical switching through the fluorescence and FRET control." Journal of Physics: Conference Series 2058, no. 1 (2021): 012001. http://dx.doi.org/10.1088/1742-6596/2058/1/012001.

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Abstract Resonant interaction between excitonic transitions of molecules and localized electromagnetic field forms the hybrid polaritonic states. Tuneable microresonators may change the light-matter coupling strength and modulate them from weak to strong and ultra-strong coupling regimes. In this work we have realised strong coupling between the tuneable open-access cavity mode and the excitonic transitions in oligonucleotide-based molecular beacons with their terminus labelled with a pair of organic dye molecules demonstrating an efficient donor-to-acceptor Förster resonance energy transfer (

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39

Abbarchi, Marco, Takaaki Mano, Takashi Kuroda, Akihiro Ohtake, and Kazuaki Sakoda. "Polarization Anisotropies in Strain-Free, Asymmetric, and Symmetric Quantum Dots Grown by Droplet Epitaxy." Nanomaterials 11, no. 2 (2021): 443. http://dx.doi.org/10.3390/nano11020443.

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We provide an extensive and systematic investigation of exciton dynamics in droplet epitaxial quantum dots comparing the cases of (311)A, (001), and (111)A surfaces. Despite a similar s-shell exciton structure common to the three cases, the absence of a wetting layer for (311)A and (111)A samples leads to a larger carrier confinement compared to (001), where a wetting layer is present. This leads to a more pronounced dependence of the binding energies of s-shell excitons on the quantum dot size and to the strong anti-binding character of the positive-charged exciton for smaller quantum dots. I

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40

James Singh, Konthoujam, Hao-Hsuan Ciou, Ya-Hui Chang, et al. "Optical Mode Tuning of Monolayer Tungsten Diselenide (WSe2) by Integrating with One-Dimensional Photonic Crystal through Exciton–Photon Coupling." Nanomaterials 12, no. 3 (2022): 425. http://dx.doi.org/10.3390/nano12030425.

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Two-dimensional materials, such as transition metal dichalogenides (TMDs), are emerging materials for optoelectronic applications due to their exceptional light–matter interaction characteristics. At room temperature, the coupling of excitons in monolayer TMDs with light opens up promising possibilities for realistic electronics. Controlling light–matter interactions could open up new possibilities for a variety of applications, and it could become a primary focus for mainstream nanophotonics. In this paper, we show how coupling can be achieved between excitons in the tungsten diselenide (WSe2

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Bendib, A., K. Bendib-Kalache, and C. Deutsch. "Optical breakdown threshold in fused silica with femtosecond laser pulses." Laser and Particle Beams 31, no. 3 (2013): 523–29. http://dx.doi.org/10.1017/s0263034613000396.

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AbstractA theoretical model for electrons in the conduction band intend to investigate the optical breakdown threshold in femtosecond laser pulse-fused silica interaction is presented. The model is derived from a rate equation that includes the avalanche and multi-photon ionization processes of Thornber and Keldysh, respectively, and also the three-body and exciton recombination mechanisms. In addition, the time evolution of electron mean energy is also considered through the energy balance equation. The mean energy acts as a trigger for the avalanche mechanism. The evolution of electron densi

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Razieh, Pakniat, and Zandi Mohammad Hossein. "Fabrication of Vacuum Chamber and Synthesis of Nanotubes. A Theorical Investigation of Exciton-Photon Interaction in the Nanotubes." International Journal of Electrochemical Science 7, no. 2 (2012): 1118–24. http://dx.doi.org/10.1016/s1452-3981(23)13399-2.

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Abbarchi, Marco, Takaaki Mano, Takashi Kuroda, and Kazuaki Sakoda. "Exciton Dynamics in Droplet Epitaxial Quantum Dots Grown on (311)A-Oriented Substrates." Nanomaterials 10, no. 9 (2020): 1833. http://dx.doi.org/10.3390/nano10091833.

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Droplet epitaxy allows the efficient fabrication of a plethora of 3D, III–V-based nanostructures on different crystalline orientations. Quantum dots grown on a (311)A-oriented surface are obtained with record surface density, with or without a wetting layer. These are appealing features for quantum dot lasing, thanks to the large density of quantum emitters and a truly 3D lateral confinement. However, the intimate photophysics of this class of nanostructures has not yet been investigated. Here, we address the main optical and electronic properties of s-shell excitons in individual quantum dots

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Corovai, A. V., and P. I. Khadzhi. "Nonlinear interaction of ultrashort light pulses with a thin semiconductor film under conditions of two-photon exciton-biexciton conversion." Quantum Electronics 30, no. 12 (2000): 1091–93. http://dx.doi.org/10.1070/qe2000v030n12abeh001872.

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Wang, Naien, Yunfei Zou, Lulu Wang, and Li Yu. "Theoretical study on amplifying strong exciton–photon coupling based on surface plasmon in a hybridized perovskite nanowire-metal film-perovskite nanowire structure." Modern Physics Letters B 35, no. 20 (2021): 2150336. http://dx.doi.org/10.1142/s021798492150336x.

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We theoretically report a strong light–matter interaction in a sandwich structure composed of hybridized inorganic–organic perovskite nanowires, silica (SiO2) films and a silver (Ag) film. Surface plasmon effectively enhances the strong exciton–photon coupling strength of perovskite nanowires, which depends on reduction of effective mode volume and local field enhancement. By calculation, we find that the thicknesses of SiO2 and Ag films can affect the coupling strength. With the suitable thickness of SiO2 (5 nm) and Ag (30 nm) films, Rabi splitting can reach 319 meV, while without an Ag film

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Krivenkov, Victor, Pavel Samokhvalov, Ivan S. Vasil'evskii, Nikolai I. Kargin, and Igor Nabiev. "Plasmon–exciton interaction strongly increases the efficiency of a quantum dot-based near-infrared photodetector operating in the two-photon absorption mode under normal conditions." Nanoscale 13, no. 47 (2021): 19929–35. http://dx.doi.org/10.1039/d1nr06229h.

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Hasobe, Taku, Nikolai Tkachenko, and Yasuhiro Kobori. "(Invited) High-Yield and Long-Lived Individual Triplet Exciton Generation Using Covalently-Linked Tetracene Dimers through Intramolecular Singlet Fission." ECS Meeting Abstracts MA2022-01, no. 13 (2022): 894. http://dx.doi.org/10.1149/ma2022-0113894mtgabs.

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Singlet fission (SF) is a multi-exciton generation process in two neighboring organic chromophores (S1 + S0) where two individual triplet excitons (T1 + T1) are generated from one-photon absorption through a correlated triplet pair (TT) (see: the following equation). Therefore, SF is highly promising for construction of next-generation light energy conversion systems. S1 + S0 → TT → T1 + T1 In addition to the close interaction of two neighboring chromophores, energy-level matching condition between a singlet and two triplet states: [E(S1) ≥ 2E(T1)] are required for efficient SF. Acene derivati

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Zhou, Fei, Zhiyuan Yang, Jingtao Huang, Xueping Zheng, Xianhua Wei, and Bo Dai. "Self-trapped exciton-phonon resonance enhanced nonlinear susceptibility in 2D KNbO2." Applied Physics Letters 125, no. 22 (2024). http://dx.doi.org/10.1063/5.0239364.

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Strong second harmonic generation (SHG) was observed when the two-photon energy matches to the self-trapped exciton resonance states in the lattice inversion symmetric system of two-dimensional (2D) KNbO2 crystals. It is ascribed to the symmetry broken induced by the bending distortion of O−Nb−O in individual octahedrons (low frequency T2g modes) that coupling to the two-photon frequency. The quantum confinement SHG response with more than one orders of enhancement is obtained due to the phonon-exciton-photon interaction with dimension reduction. In addition, the exciton-phonon interaction cou

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Gu, Jie, Valentin Walther, Lutz Waldecker, et al. "Enhanced nonlinear interaction of polaritons via excitonic Rydberg states in monolayer WSe2." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-22537-x.

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AbstractStrong optical nonlinearities play a central role in realizing quantum photonic technologies. Exciton-polaritons, which result from the hybridization of material excitations and cavity photons, are an attractive candidate to realize such nonlinearities. While the interaction between ground state excitons generates a notable optical nonlinearity, the strength of such interactions is generally not sufficient to reach the regime of quantum nonlinear optics. Excited states, however, feature enhanced interactions and therefore hold promise for accessing the quantum domain of single-photon n

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Wang, Tingting, Dingyang Zhang, Shiqi Yang, et al. "Magnetically-dressed CrSBr exciton-polaritons in ultrastrong coupling regime." Nature Communications 14, no. 1 (2023). http://dx.doi.org/10.1038/s41467-023-41688-7.

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AbstractOver the past few decades, exciton-polaritons have attracted substantial research interest due to their half-light-half-matter bosonic nature. Coupling exciton-polaritons with magnetic orders grants access to rich many-body phenomena, but has been limited by the availability of material systems that exhibit simultaneous exciton resonances and magnetic ordering. Here we report magnetically-dressed microcavity exciton-polaritons in the van der Waals antiferromagnetic (AFM) semiconductor CrSBr coupled to a Tamm plasmon microcavity. Using angle-resolved spectroscopy, we reveal an exception

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