Random lasing from granular surface of waveguide with blends of PS and PMMA

Zhao, Xiaoxue; Wu, Zhaoxin; Ning, Shuya; Liang, Shixiong; Wang, Dawei; Hou, Xun

doi:10.1364/oe.19.016126

Cited by 37 publications

(16 citation statements)

References 28 publications

(32 reference statements)

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“…6 Here, l s , scattering mean free path, is dened as the average distance that light travels between two consecutive scattering events, and l g , amplication length, is inversely proportional to the optical gain. A variety of nanomaterials, such as semiconductor, 7 dielectric materials, 8 polymer, 9 human tissue, 10 plant structures, 11 and biological tissues 12 have been demonstrated to generate RLs. Owing to their intrinsic birefringence, liquid crystals (LCs) 13 are considered as a superior light scattering material for RLs.…”

Section: Introductionmentioning

confidence: 99%

Resonant energy transfer and light scattering enhancement of plasmonic random lasers embedded with silver nanoplates

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Resonant energy transfer and light scattering enhancement of plasmonic random lasers embedded with silver nanoplates

et al. 2020

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“…Several discrete narrow peaks (i.e., lasing modes) started to emerge as the pump power exceeded the laser threshold, which indicated that resonant feedback was generated in the POFRL. According to the previous studies, RLs with resonant (field or amplitude) feedback are categorized as coherent RLs . The FWHM of the lasing mode narrowed down to 0.5 nm, which is two orders of magnitude narrower than the FWHM of the spontaneous emission peak.…”

Section: Resultsmentioning

confidence: 99%

Experimental and Theoretical Investigation of the Polymer Optical Fiber Random Laser with Resonant Feedback

Chan

Cheng

et al. 2018

Advanced Optical Materials

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demonstration of RFL by inserting TiO 2 particles and rhodamine 6G dyes into the hollow core of a photonic crystal fiber, which opened the research field of RFLs. [15] Subsequently, both coherent and incoherent RFLs based on various fiber structures have been demonstrated. [16][17][18] These RFLs have several merits like low threshold, directional output, and low-cost fabrication, indicating that they are superior to other conventional RLs in some applications. [16] According to the feedback mechanism, RFLs can be generally classified into two categories: (1) RFLs based on common single mode fibers with the feedback provided by Rayleigh scattering and Raman effect, [19][20][21][22][23][24][25] (2) RFLs based on specific fibers (e.g., liquid core optical fibers, polymer optical fibers, and erbium-doped fibers) with the feedback provided by doped particles or randomly distributed Bragg gratings. [16,[26][27][28][29][30][31] For the first type of RFLs, their length are normally more than several kilometers, which limits their applications. [18] Conversely, the size of the second type of RFLs is in the centimeter scale. [26] Moreover, the properties of the second type of RFLs (e.g., shape, size, lasing wavelength, and laser threshold) could be tuned via controlling the fiber materials, scatterers, and optical gain medium. [27,28,32] As a result, the second type of RFLs can be regarded as ideal experimental systems for the investigation of random lasing with novel materials (like plasmonic materials), which have already been reported in several studies. [17,33,34] However, these studies mainly focus on experimental studies and corresponding theoretical models are still lacking to date. There is a need to find an effective numerical model to describe the lasing dynamic in the RFLs. Moreover, although RFLs have great potential in various applications, no practical application has been reported in the past studies.In the present work, we have demonstrated polymer optical fiber RLs (POFRLs) by doping TiO 2 nanoparticles and Rh640 perchlorate dyes into the core of the POFs. The optical gain in our POFRL was provided by Rh640 perchlorate dyes which are widely used organic luminescent dyes for many dye laser systems. The TiO 2 nanoparticles worked as scatterers to provide multiscattering events for light propagation and the resulting scattering strength is in the weakly scattering regime (scattering mean free path l s ≫ emission wavelength λ). Multimode and coherent random lasing was observed in our POFRLs, which 1D random fiber laser is a novel fiber-based laser, which exhibits many unique optical properties and shows great promise for various applications including speckle-free imaging. A multimode and coherent polymer optical fiber random laser (POFRL) is successfully fabricated by doping TiO 2 nanoparticles and Rh640 perchlorate dyes in the core of a polymer optical fiber (POF). The waveguide effect provided by the POF greatly increases the multiscattering events for light propagation and results in laser cavity with muc...

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“…The presence of an ASE threshold also determines the film's compatibility as a gain medium and allows us to measure the gain and loss coefficients. For the ASE measurements, we follow the procedure commonly used for examine organic semiconducting gain materials [29], whereby we excited the film with a stripe-shaped beam in 1.6 x 0.4 mm 2 dimension and detect the emission from the edge of the film. The long axis of the beam is oriented perpendicular to the edge of the sample where the emission is monitored, thereby forming a gain-guide which transports the spontaneously emitted light to the edge of the film while getting amplified along the way.…”

Section: Resultsmentioning

confidence: 99%

Random lasing in uniform perovskite thin films

Safdar¹,

Wang²,

Krauss³

2017

Opt. Express

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Article:Safdar, Amna, Wang, Yue orcid.org/0000-0002-2482-005X and Krauss, Thomas F. orcid.org/0000-0003-4367-6601 (2018) Random lasing in uniform perovskite thin films. Optics Express. A75-A84. ISSN 1094-4087 https://doi.org/10.1364/OE.26.000A75eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Items deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. Abstract: Following the very promising results obtained by the solar cell community, metal halide perovskite materials are increasingly attracting the attention of other optoelectronics researchers, especially for light emission applications. Lasing with both engineered and selfassembled resonator structures, such as microcrystal networks, has now been successfully observed, with the low cost and the simple solution-based process being a particular attraction. The ultimate in simplicity, however, would be to observe lasing from a continuous thin film, which has not been reported yet. Here, we show random lasing action from such a simple perovskite layer. Our lasers work at room temperature; they are deposited on unpatterned glass substrates and they exhibit a minimum threshold value of 10 µJ/cm 2 . By carefully controlling the solution processing conditions, we can determine whether random lasing occurs or not, using identical precursors. A rather special feature is that some of the films exhibit single and dual mode lasing action, which is rarely observed in random lasers. Our work fully exploits the simplicity of the solution-based process and thereby adds an important capability into the emerging field of perovskite-based light emitters. Heiss, and M. V. Kovalenko, "Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites," Nat. Commun. 6, 8056-8064 (2015). 12. J. Xing, F. Yan, Y. Zhao, S. Chen, H. Yu, Q. Zhang, R. Zeng, H. V. Demir, X. Sun, A. Huan, and Q. Xiong, "High-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticles," ACS Nano 10(7), 6623-6630 (2016). Brenner, M. Stulz, D. Kapp, and T. Abzieher, "Highly stable solution processed metal-halide perovskite lasers on nanoimprinted distributed feedback structures," Appl. Random lasing in uniform perovskite

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Random lasing from granular surface of waveguide with blends of PS and PMMA

Cited by 37 publications

References 28 publications

Resonant energy transfer and light scattering enhancement of plasmonic random lasers embedded with silver nanoplates

Resonant energy transfer and light scattering enhancement of plasmonic random lasers embedded with silver nanoplates

Experimental and Theoretical Investigation of the Polymer Optical Fiber Random Laser with Resonant Feedback

Random lasing in uniform perovskite thin films

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