Random lasing action in magnetic nanoparticles doped dye solutions

Ye, Lihua; Lu, Jincheng; Lv, Changgui; Yang, Feng; Zhao, Chong; Wang, Zhuyuan; Cui, Yiping

doi:10.1016/j.optcom.2014.11.023

Cited by 13 publications

(7 citation statements)

References 10 publications

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“…Although the emission is perpendicular to the quartz cuvette, where the photon path was only 1 mm long, the emission spectra do not present a nearly constant frequency spacing of the lasing modes, in contrast to Fabry-Perot cavitylike emission [26,27]; similar experimental results have been verified and explained in our previous work [28]. Besides, in order to derive the excited random ring cavity lengths from the parameters used in the research, the power Fourier transforms of the random laser spectra of figure 3(b) are calculated and the results are presented in figure 3(d).…”

Section: Random Laser In Quartz Cuvettesupporting

confidence: 85%

Coherent random lasing from liquid waveguide gain layer containing silica nanoparticles

Yang

Lü

et al. 2016

Laser Phys. Lett.

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A unidirectional coherent random laser is constructed by a sandwich structure consisting of two polydimethylsiloxane plates and a highly transparent ultra-thin liquid active layer embedded with silica nanoparticles (NPs). The optical feedback of the random laser is provided by both strong waveguide confinement and the SiO2 NPs’ multiple scattering. Compared with random laser in a quartz cuvette, the pump threshold is only 700 µJ cm−2. The lowest threshold is obtained in an optimum concentration of silica NPs. The change of peak positions in the liquid waveguide structure is larger than that in the quartz cuvette for different solvents. The peak-shift of the emission wavelength is more sensitive in the liquid waveguide structure, which is a promising platform for bio-chemical and bio-sensing applications.

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Section: Random Laser In Quartz Cuvettesupporting

confidence: 85%

Coherent random lasing from liquid waveguide gain layer containing silica nanoparticles

Yang

Lü

et al. 2016

Laser Phys. Lett.

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“…Since there are many scattering nanoparticles that can provide multi-mode RL emission [23][24][25][26], the resonant feedback is not the only reason that makes the use of GQDs so prominent. Another important issue for practical applications is the photo-stability of the RL sample under long duration excitation.…”

Section: Resultsmentioning

confidence: 99%

Resonant random laser emission from graphene quantum dots doped dye solution

Rafieipour¹,

Ardakani

Daneshmand³

2020

Laser Phys.

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Graphene quantum dots (GQDs) are more promising than other kinds of semiconductor QDs because of their photostability and biocompatibility in different applications such as bioimaging, biosensing and light emitting diodes (LEDs). In addition, advances in random lasers (RLs) have led to an emerging desire for developing remote sensing and detecting strategies, lightning and imaging systems that are far cheaper, more precise and simpler. Although combining GQDs and RLs seems promising for the development of advanced biosensing and bioimaging systems, the RLs fabricated based on GQDs have been rarely studied. Here, we report on the fabrication of dye doped GQDs RLs with resonant feedback that are pumped optically with nanosecond pulses. GQDs, synthesized by the pyrolysis of citric acid, are used as scattering centers in an ethylene glycol solution of rhodamine B dye. It is demonstrated experimentally that discrete lasing modes with subnanometer linewidths appear at pump fluences above the threshold. Furthermore, the dependence of random lasing emission characteristics on the concentration of GQDs and the pump position is investigated experimentally.

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“…141 , and it is made of a laser dye and scatterers (TiO 2 + Fe 3 O 4 NPs) that can be controlled magnetically. Other exotic works also use magnetic nanoparticle scatterers to control and observe random lasing emission 142,143 .…”

Section: Rl With Controllable Directions 521 Polyvalence Of Liquid Cr...mentioning

confidence: 99%

“…Other exotic works also use magnetic nanoparticle scatterers to control and observe random lasing emission. 142,143 5.2.3. Electrically controlled random lasers.…”

Section: Materials Advances Reviewmentioning

confidence: 99%