Lasing Behavior of a Single ZnO Nanowire Resonating in Fabry–Perot Mode under Pressure

Yao, Xu; Li, Hongqi; Li, Zhongqi; Huang, Xiaoping; Zhao, Yongsheng; Liu, Xinxia; Zhu, Pinwen; Liu, BingBing; Cui, Tian; Sun, Cheng; Bao, Yongjun

doi:10.1021/acs.jpcc.0c00145

Cited by 3 publications

(4 citation statements)

References 47 publications

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“…In this section, we briefly summarize a few studies on high-pressure-induced optical property changes in less commonly encountered NPs. The lasing performance of a single ZnO NW was investigated under pressure . It was found that, with increasing pressures below the WZ to RS phase transition point, the stimulated emission blue-shifted faster than the spontaneous emission as evidenced by the color differences between the middle and the ends of NWs.…”

Section: Pressure-induced Property Changes In Inorganic Npsmentioning

confidence: 99%

“…The lasing performance of a single ZnO NW was investigated under pressure. 161 It was found that, with increasing pressures below the WZ to RS phase transition point, the stimulated emission blue-shifted faster than the spontaneous emission as evidenced by the color differences between the middle and the ends of NWs. This observation was rationalized as the result of interplay and balancing among exciton binding energies and the factors that hinder exciton formation, such as pressure strengthening of photons and pressure-induced defects within the NWs.…”

Section: Pressure-induced Property Changes In Inorganic Npsmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles

Meng,

Vu,

Criscenti

et al. 2023

Chem. Rev.

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Using compressive mechanical forces, such as pressure, to induce crystallographic phase transitions and mesostructural changes while modulating material properties in nanoparticles (NPs) is a unique way to discover new phase behaviors, create novel nanostructures, and study emerging properties that are difficult to achieve under conventional conditions. In recent decades, NPs of a plethora of chemical compositions, sizes, shapes, surface ligands, and self-assembled mesostructures have been studied under pressure by in-situ scattering and/or spectroscopy techniques. As a result, the fundamental knowledge of pressure–structure–property relationships has been significantly improved, leading to a better understanding of the design guidelines for nanomaterial synthesis. In the present review, we discuss experimental progress in NP high-pressure research conducted primarily over roughly the past four years on semiconductor NPs, metal and metal oxide NPs, and perovskite NPs. We focus on the pressure-induced behaviors of NPs at both the atomic- and mesoscales, inorganic NP property changes upon compression, and the structural and property transitions of perovskite NPs under pressure. We further discuss in depth progress on molecular modeling, including simulations of ligand behavior, phase-change chalcogenides, layered transition metal dichalcogenides, boron nitride, and inorganic and hybrid organic–inorganic perovskites NPs. These models now provide both mechanistic explanations of experimental observations and predictive guidelines for future experimental design. We conclude with a summary and our insights on future directions for exploration of nanomaterial phase transition, coupling, growth, and nanoelectronic and photonic properties.

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Section: Pressure-induced Property Changes In Inorganic Npsmentioning

confidence: 99%

Section: Pressure-induced Property Changes In Inorganic Npsmentioning

confidence: 99%

Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles

Meng,

Vu,

Criscenti

et al. 2023

Chem. Rev.

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“…Furthermore, semiconductor NWs have superior strain relaxation ability, which presents excellent opportunities for the practical application of nanolasers in silicon photonics . To date, optically or electrically pumped nanolasers have been realized in various inorganic semiconductor NWs such as InP, GaAs, ZnO, , CdS, and GaN . Nonetheless, most of these NWs have been fabricated through the “top-down etching” and “bottom-up selective area epitaxy” methods, , which require numerous fabrication steps as well as patterning techniques.…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Thermal Control of Random and Fabry–Pérot Lasing in Nanowire Arrays

et al. 2022

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Nanolasers have attracted intense interest in the past decade because they are more compact, can be operated at higher modulation speed, and are more power-efficient than classical lasers. Thanks to these capabilities, nanolasers are now emerging for a variety of practical applications. This work presents hybrid nanolasers supporting both Fabry–Pérot and random lasing modes at room and cryogenic temperatures. These lasing modes are shown to exhibit differences in their lasing properties, such as wavelength, polarization, and coherency. New practical and broadly applicable methods are presented to distinguish these modes, including polarization-resolved measurements, near-field imaging, and photoluminescence spectroscopy measurements. Importantly, this paper demonstrates tuning between different lasing types in nanolasers, i.e., between Fabry–Pérot and random lasing. This allows the tuning of several lasing properties beyond only wavelength tuning. Thermal tuning is used here, where the Fabry–Pérot lasing modes are dominant at cryogenic temperatures, and at room temperature, random lasing becomes dominant. This work presents the first NW dual-cavity nanolaser and the first demonstration of thermal tuning between laser cavity types. As such, it provides the foundation for hybrid nanolasers, where various lasing properties can be tuned.

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“…The design of a quantum well structure is the most desirable success for this method [14,15]. The second is based on the tuning of the cavities, including individual cavity size and coupled structures [16][17][18]. Cavity size-related mode evaluation, single mode operation, or even four-wave mixing can be obtained with this method [19,20].…”

Section: Introductionmentioning

confidence: 99%

Thermal effect induced dynamically lasing mode tuning in GaN whispering gallery microcavities

Qin¹,

Zhu²,

Wang³

et al. 2021

J. Phys. D: Appl. Phys.

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Thermal modulated real-time wavelength tuning of semiconductors has shown great potential for GaN-based sensors or photo-electricity modulators. Herein, we study the temperature mediated photoluminescence (PL) properties in GaN materials via PL and time-resolved PL measurement in situ and synchronously. We then broaden the phenomenon to lasing mode tuning of whispering gallery cavities. To understand the underling mechanism, time, and frequency domain properties of spontaneous emission from GaN film, amplified spontaneous emission and stimulated emission from floating GaN microdisks in a temperature region from 0 °C to 50 °C are compared. According to analysis of temperature-related changes in the central wavelength, peak intensity, full width at half maximum (FWHM), and carrier dynamics, the thermal controlled PL properties of various structures are well understood. Material structure-related changes in exciton combination channels and temperature-related changes in central wavelength, peak intensity, FWHM, and exciton combination times are observed. Finally, real-time lasing mode modulation in floating GaN microdisks is realized. Our work reveals the lasing tuning method in situ, implying a promising strategy for fabricating high performance thermal-optic modulation devices.

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Lasing Behavior of a Single ZnO Nanowire Resonating in Fabry–Perot Mode under Pressure

Cited by 3 publications

References 47 publications

Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles

Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles

Characteristics and Thermal Control of Random and Fabry–Pérot Lasing in Nanowire Arrays

Thermal effect induced dynamically lasing mode tuning in GaN whispering gallery microcavities

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