
Tm3+掺杂的NaYF4微米颗粒中强烈的单带下转换荧光发射
We also investigated the luminescence properties of the β -NaYF 4:Tm 3+ hexagonal microdisks and microrods. By selectively exciting the NaYF 4:Tm 3+ microcrystals with a 656-nm pulsed laser...
纳米探针 | 在1800nm左右工作的基于降频发光的Tm3+明亮纳米探 …
在本研究的设计中,Tm3+离子同时作为敏化剂和激活剂来吸收800 nm (近红外-I)或1208 nm (近红外-II)的光子,由于这种辐射跃迁引起的强烈的交叉弛豫 (CR),它们产生了有效的1600-2100 nm斯托克斯发射 (3F4→3H6)。
Dual-wavelength lasing around 800 nm in a Tm:ZBLAN fibre laser
We demonstrate dual wavelength operation, wavelength switching, and bistable behaviour in a Tm:ZBLAN fibre laser operating at 800 nm. The lasers are built in both single and cascaded-cavity configurations.
Improved 800 nm emission of Tm3+ sensitized by Yb3+ and
2012年3月26日 · Our paper presents a simple and general method which can further improve the intensity of NIR 800 nm emission of Tm³⁺ through adding Ho³⁺ as the second sensitizer of Tm³⁺ in Yb/Tm doped NaYF₄...
Improved 800 nm emission of Tm - Optica Publishing Group
The intensity of the NIR 800 nm emission is demonstrated to increase by up to 3 times along with the adding of Ho 3+. Experimental data illustrates that the sensitizations of Tm 3+ by both Yb 3+ and Ho 3+ provide a more efficient energy transfer (ET) route for intense 800 nm emission than that by Yb 3+ alone.
Shaping 800 nm pulses of Yb/Tm co-doped laser: A control …
2020年11月1日 · In this interdisciplinary paper, Model-Free Control is combined with Sliding Control to shape 800 nm pulsed emission of the lanthanide co-doped dual-laser system. This is achieved by controlling the stimulated emission rate via …
Emission of Tm 2+ in alkaline-earth fluoride crystals
2022年12月1日 · The 5 d-4f emission of Tm 2+ ions was detected in the 680–800 nm region with a decay time in the micro-millisecond time interval. The 4f-4f emission is thermally quenched at temperatures of 250, 300, and 350 K in BaF 2, SrF 2, and CaF 2, which correlates with the distance from the excited level to the bottom of the conduction band.
800-nm upconversion emission in Yb-sensitized Tm-doped …
2006年8月21日 · We report, for the first time, the upconversion emission at 800 nm in Yb-sensitized Tm-doped alumino-germano-silicate glass optical fiber when pumped with the 980-nm laser diode. Maximum gain of 6 dB was measured at 808 nm and the upconversion is contributed to the energy transfer from Yb/sup 3+/ ions to Tm/sup 3+/ ions.
Yb/Tm 共掺杂激光器的 800 nm 脉冲整形:控制理论方 …
然而,由 Tm3+ 受体探针的亚稳态 3H4 能级放电引起的 800 nm 受激发射的精确控制将通过抑制从焦平面发出的可见荧光来增强现代显微镜中的成像。
Enhanced upconversion emission of NaGdF4: Yb3+/Tm3+ crystals …
2021年6月14日 · The emission peaks of Tm 3+ ions are 449, 477, 645, 723, 800 nm which are attributed to high excited states to ground state 3 H 6 transition through a multiple steps resonance energy transfer from excited Yb 3+.
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