Tunable Exciton-Optomechanical Coupling in Suspended Monolayer MoSe<sub>2</sub>

Xie, Hongchao; Jiang, Shengwei; Rhodes, Daniel; Hone, James; Shan, Jie; Mak, Kin Fai

doi:10.1021/acs.nanolett.0c05089

Cited by 29 publications

(32 citation statements)

References 43 publications

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“…The lattice anisotropy induced polarization dependent optical responses are observed in BP 412,414 and other anisotropic 2D materials 416,[424][425][426][427][428][429] . Furthermore, absorption spectroscopy is a powerful tool to reveal unique excitonic properties modulated by external fields, including dielectric environment 430 , electrical filed 421,431,432 , and optomechanical fields 433 . There are also continuous efforts and progresses on 2D materials with tailored optical functionalities, such as optical absorbers with tunable polarization 434 , wavelength [435][436][437][438] , and efficiency 439 .…”

Section: Optical Absorptionmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

309

119

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Research on two-dimensional (2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications.In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief background 物理化学学报 Acta Phys. -Chim. Sin. 2021, 37 (12), 2108017 (3 of 151) introduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials (PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

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Section: Optical Absorptionmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

309

119

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“…The calculation demonstrates, that the spectral asymmetry of the optomechanical gain, discussed previosly in the regime of weak oscillations [Figs. 3,4], persists in the nonlinear regime. For the parameters of Fig.…”

Section: Asymmetric Optomechanical Damping Spectramentioning

confidence: 99%

“…Cavity optomechanics of nanoscale semiconductor structures is now rapidly developing [1]. Such paradigmatic effects as phonon lasing [2,3], optomechanical heating and cooling [4] and optomechanical nonreciprocity [5] have already been demonstrated. However, the quest for compact on-chip structures with strong optomechanical interactions and long coherence times is still ongoing.…”

Section: Introductionmentioning

confidence: 99%

Optomechanical amplification driven by interference of phonon-exciton and phonon-photon couplings

Vyatkin,

Poddubny

2021

Preprint

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We study theoretically optomechanical damping and amplification spectra for vibrations interacting with excitonic polaritons in a zero-dimensional microcavity. We demonstrate, that the spectra strongly depend on the ratio of the exciton-phonon and the photon-phonon coupling constants. The interference between these couplings enables a situation when optomechanical gain exists either only for a lower polaritonic resonance or only for an upper polaritonic resonance. Our results provide insight in the optomechanical interactions in various multi-mode systems, where several resonant oscillators, such as photons, plasmons, or excitons are coupled to the same vibration mode.

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“…In particular, being direct band-gap semiconductors, when reduced to the ML limit, TMDs are the natural choice for the observation (and practical exploitation) of electro-and opto-mechanical coupling phenomena. [205] For all these reasons, NEMS based on suspended 2D materialsand on TMDs in particular-have attracted a lot of interest and already demonstrated appealing characteristics for many different applications [159,166,199,202,206] as well as for fundamental physical problem investigations. [207,208] The main objective of a NEMS resonator is to detect small forces by measuring a resonator displacement.…”

Section: Nanomechanical Resonators and Other Applicationsmentioning

confidence: 99%

mentioning

confidence: 99%

Mechanical, Elastic, and Adhesive Properties of Two‐Dimensional Materials: From Straining Techniques to State‐of‐the‐Art Local Probe Measurements

Giorgio

Blundo

Pettinari

et al. 2022

Adv Materials Inter

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While static methods are often essential to make a material suited to a specific application, by permanently altering its properties, dynamic ones potentially enable their real-time modulation, paving the way for the development of reconfigurable devices.Within this context, strain engineering has historically been regarded as a "static" tuning method, which exploited the crystal deformations induced by the juxtaposition of materials with different lattice constants to manipulate the properties of semiconductor heterostructures [1] and improve the performance of electronic devices (e.g., CMOS-based logic technologies [2] ). In recent years, however, strain-engineering paradigms have begun to shift, leading to the development of new devices, capable of generating a dynamic modulation of the mechanical deformations induced in the active materials (and, thus, of their optoelectronic properties).Micro-and nano-electromechanical systems (MEMS and NEMS), for example, have long been used for sensing applications, thanks to their ability to transduce external stresses (e.g., applied pressure/weights, molecule adsorption,...) into electrical signals. In the opposite regime they are, at least in principle, 2D materials, such as graphene, hexagonal boron nitride (hBN), and transition-metal dichalcogenides (TMDs), are intrinsically flexible, can withstand very large strains (>10% lattice deformations), and their optoelectronic properties display a clear and distinctive response to an applied stress. As such, they are uniquely positioned both for the investigation of the effects of mechanical deformations on solid-state systems and for the exploitation of these effects in innovative devices. For example, 2D materials can be easily employed to transduce nanometric mechanical deformations into, e.g., clearly detectable electrical signals, thus enabling the fabrication of high-performance sensors; just as easily, however, external stresses can be used as a "knob" to dynamically control the properties of 2D materials, thereby leading to the realization of strain-tuneable, fully reconfigurable devices. Here, the main methods are reviewed to induce and characterize, at the nm level, mechanical deformations in 2D materials. After presenting the latest results concerning the mechanical, elastic, and adhesive properties of these unique systems, one of their most promising applications is briefly discussed: the realization of nano-electromechanical systems based on vibrating 2D membranes, potentially capable of operating at high frequencies (>100 MHz) and over a large dynamic range.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/admi.202102220.

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Tunable Exciton-Optomechanical Coupling in Suspended Monolayer MoSe₂

Cited by 29 publications

References 43 publications

Recent Progress on Two-Dimensional Materials

Recent Progress on Two-Dimensional Materials

Optomechanical amplification driven by interference of phonon-exciton and phonon-photon couplings

Mechanical, Elastic, and Adhesive Properties of Two‐Dimensional Materials: From Straining Techniques to State‐of‐the‐Art Local Probe Measurements

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Tunable Exciton-Optomechanical Coupling in Suspended Monolayer MoSe2

Cited by 29 publications

References 43 publications

Recent Progress on Two-Dimensional Materials

Recent Progress on Two-Dimensional Materials

Optomechanical amplification driven by interference of phonon-exciton and phonon-photon couplings

Mechanical, Elastic, and Adhesive Properties of Two‐Dimensional Materials: From Straining Techniques to State‐of‐the‐Art Local Probe Measurements

Contact Info

Product

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Tunable Exciton-Optomechanical Coupling in Suspended Monolayer MoSe₂