Emerging and perspectives in microlasers based on rare-earth ions activated micro-/nanomaterials

Chen, Zhi; Dong, Guoping; Barillaro, Giuseppe; Qiu, Jianrong; Yang, Zhongmin

doi:10.1016/j.pmatsci.2021.100814

Cited by 32 publications

(16 citation statements)

References 403 publications

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“…Here, the superscript and subscript represent the axial and azimuthal quantum numbers, respectively. The TE 535 22 mode for the blue lasing has the largest axial and azimuthal quantum numbers, which means that the blue laser is relatively homogeneously distributed with the smallest spatial spacing. 51 The mode volumes of the TE 371 16 , TE 439 19 , and TE 535 22 modes are estimated to be 573, 487, and 399 μm 3 , respectively, indicating that the TE 535 22 mode with the smallest mode volume is well confined for the highest energy density.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…20,21 Besides, RE elements possess advantages of low-cost fabrication, high environmental stability, and high photoluminescence quantum yield. 22,23 Therefore, RE elements have been widely applied in a variety of areas including three-dimensional display, 24,25 luminescent biomarkers, 20,26,27 super-resolution nanoscopy, 28,29 and laser fabrication. 22,30,31 RE-based upconversion white laser was first realized in NaYF 4 hexagonal microrods under 980 nm nanosecond-pulse laser excitation.…”

Section: ■ Introductionmentioning

confidence: 99%

“…22,23 Therefore, RE elements have been widely applied in a variety of areas including three-dimensional display, 24,25 luminescent biomarkers, 20,26,27 super-resolution nanoscopy, 28,29 and laser fabrication. 22,30,31 RE-based upconversion white laser was first realized in NaYF 4 hexagonal microrods under 980 nm nanosecond-pulse laser excitation. 1 Subsequently, upconversion white random lasing in NaYF 4 :Yb/Er/ Tm@NaYF 4 :Eu core−shell nanoparticles under a 980 nm continuous-wave (CW) laser pump was realized.…”

Section: ■ Introductionmentioning

confidence: 99%

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Room-temperature Continuous-Wave Upconversion White Microlaser Using a Rare-earth-Doped Microcavity

et al. 2022

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White laser covering the visible color spectrum is critical in various applications including vivid display, holographic imaging, and light-based version of Wi-Fi, but it is still challenging to realize a white microlaser due to the rigorous requirement for the balance between the optical gain and feedback in a wide wavelength range. Here, we employ thulium, erbium, and ytterbium elements corporately for the upconversion white lasing by an individual ultrahigh-quality (Q) (up to 10 8 ) doped microcavity with microwatt thresholds for the red, green, and blue lasers. To the best of our knowledge, it is the first rare-earthelement-based room-temperature continuous-wave white microlaser. This microlaser also exhibits relatively stable chromaticity over 180 min, which makes it possible for practical applications.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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Room-temperature Continuous-Wave Upconversion White Microlaser Using a Rare-earth-Doped Microcavity

et al. 2022

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“…[1][2][3][4] Rare earth (RE) elements with abundant long-lived intermediate energy levels and intraconfigurational transitions can emit light from the deep-ultraviolet to mid-infrared by pumping high-energy or low-energy photons, i.e., downshifting or upconversion, respectively, and thus can be applied in data storage, 5,6 three-dimensional display, 7,8 luminescent biomarkers, [9][10][11] and lasers. 12,13 Whispering-gallery-mode (WGM) optical microcavities with an ultrahigh quality (Q) factor and small mode volume exhibiting ultrahigh energy density and strong light-matter interaction can be applied in sensing, [14][15][16] nonlinear optics, [17][18][19][20][21][22] cavity optomechanics, 23,24 and lasers. [25][26][27][28][29][30][31][32][33] Therefore, doping RE elements into an ultrahigh-Q microcavity without degrading its intrinsic Q factor is an effective way to construct a low-threshold and narrow-linewidth multiband microlaser.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous ultraviolet, visible, and near-infrared continuous-wave lasing in a rare-earth-doped microcavity

et al. 2022

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Microlaser with multiple lasing bands is critical in various applications, such as full-color display, optical communications, and computing. Here, we propose a simple and efficient method for homogeneously doping rare earth elements into a silica whispering-gallery microcavity. By this method, an Er-Yb co-doped silica microsphere cavity with the highest quality (Q) factor (exceeding 10 8 ) among the rare-earth-doped microcavities is fabricated to demonstrate simultaneous and stable lasing covering ultraviolet, visible, and near-infrared bands under room temperature and a continuous-wave pump. The thresholds of all the lasing bands are estimated to be at the submilliwatt level, where both the ultraviolet and violet continuous wave upconversion lasing from rare earth elements has not been separately demonstrated under room temperature until this work. This ultrahigh-Q doped microcavity is an excellent platform for highperformance multiband microlasers, ultrahigh-precision sensors, optical memories, and cavity-enhanced light-matter interaction studies.

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“…Fibers and fabrics with bright luminescence seem extremely interesting, and we can even imagine the luminescence signals to be sensed and probed. Most lanthanide elements, such as europium (Eu 3+ ) and terbium (Tb 3+ ), have unique luminescence performance, a high color purity, and a stable emission wavelength [ 1 , 2 , 3 , 4 , 5 , 6 ], so they are used in lasers and luminescent materials, as well as biomedical applications [ 7 , 8 , 9 , 10 , 11 , 12 ]. However, it is a fact that they emit relatively weak luminescence, so lanthanide ions (Ln 3+ ) have to be coordinated with organic ligands to form luminescence complexes to obtain better fluorescent properties [ 13 , 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Cuboid-like Crystalline Complexes (CLCCs), Photon Emission, Fluorescent Fibers, and Bright Red Fabrics of Eu3+ Complexes Adjusted by Amphiphilic Molecules

Tang

Liu

et al. 2022

Polymers

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With the growing needs for flexible fluorescence emission materials, emission fibers and related wearable fabrics with bright emission properties have become key factors for wearable applications. In this article, novel cuboid-like crystals of Eu3+ complexes were generated. Except for light-energy-harvesting ligands of thenoyltrifluoroacetone (TTA) and 1,10-phenanthroline hydrate (Phen), the crystal structures were adjusted by other functional amphiphilic molecules. Not only does ETPC-SA, adjusted by stearic acid, have a regular cuboid-like crystal with a size of about 2 μm size, but it also generates the best photon emission property, with a fluorescence quantum yield of 98.4% fluorescence quantum yield in this report. Furthermore, we succeeded in producing novel fluorescent fibers by mini-twin-screw extrusion, and it was easy to form bright red fabrics, which are equipped with strong fluorescence intensity, flexibility, and a smooth hand feeling, with the normal fabricating method in our work. It is worth noting that ETPC-HQ fibers, which carry a crystal complex adjusted by hydroquinone, possess the lowest quantum yield but have the longest average fluorescence lifetime of 1259 µs. This result means that a low-density polyethylene (LDPE) matrix could make excited electrons stand in the excited state for a relatively long time when adjusted by hydroquinone, so as to increase the afterglow property of fluorescent fibers.

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Emerging and perspectives in microlasers based on rare-earth ions activated micro-/nanomaterials

Cited by 32 publications

References 403 publications

Room-temperature Continuous-Wave Upconversion White Microlaser Using a Rare-earth-Doped Microcavity

Room-temperature Continuous-Wave Upconversion White Microlaser Using a Rare-earth-Doped Microcavity

Simultaneous ultraviolet, visible, and near-infrared continuous-wave lasing in a rare-earth-doped microcavity

Novel Cuboid-like Crystalline Complexes (CLCCs), Photon Emission, Fluorescent Fibers, and Bright Red Fabrics of Eu3+ Complexes Adjusted by Amphiphilic Molecules

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