Nanofibers drawing and nanodevices assembly in poly(trimethylene terephthalate)

Xing, Xiaobo; Wang, Yuqing; Li, Baojun

doi:10.1364/oe.16.010815

Cited by 157 publications

(88 citation statements)

References 14 publications

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“…Firstly, a drop of dye-doped polymer solution (see Methods for details) is deposited on the corner of sample holder as shown in Figure 1a. Then, a metal rod with a sharp tip9 is approached vertically down and immersed into the drop25. Subsequently, the tip is retracted from the drop and immersed into the PDMS (Sylgard 184 Silicon Elastomer from Dow Corning) filled in the sample holder.…”

Section: Resultsmentioning

confidence: 99%

Tuning Whispering Gallery Mode Lasing from Self-Assembled Polymer Droplets

Chen

Sun

2013

Sci Rep

122

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Optical microcavities are important for both fundamental studies of light-matter interaction and applications such as microlasers, optical switches and filters etc... Tunable microresonators, in which resonant modes can be manipulated, are especially fascinating. Here we demonstrate a unique approach to mechanically tuning microresonators formed by polymer droplets with varying sizes. The droplets are self-assembly inside an elastic medium. By incorporating different dye molecules into the droplets, optically pumped lasing with selective wavelengths in a range of about 100 nm are achieved. Lasing action is ascribed to whispering gallery modes, verified by rigorous characterizations. Single longitudinal mode lasing is obtained when the droplet diameter is reduced to about 14 μm. Tuning lasing modes are clearly demonstrated by mechanical deformation. Our finding provides an excellent platform for exploring flexible and tunable microlasers for plastic optoelectronic devices.

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Section: Resultsmentioning

confidence: 99%

Tuning Whispering Gallery Mode Lasing from Self-Assembled Polymer Droplets

Chen

Sun

2013

Sci Rep

122

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“…6). This method was used to fabricate poly(trimethylene terephthalate) nanofibers with diameters as low as 60 nm, and lengths up to 500 mm [31]. An automated drawing technique utilized a pipette dispensing liquid polymer solution while intermittently contacting a substrate and moving the x–y direction across the substrate [32].…”

Section: Methods Of Polymer Nanofiber Scaffold Fabricationmentioning

confidence: 99%

“…(B) Transmission electron microscope (TEM) image of a polymer nanofiber fabricated using the drawing technique (reproduced with permission from Year 2008 The Optical Society [31]).…”

Section: Figures and Tablesmentioning

confidence: 99%

Polymer nanofibrous structures: Fabrication, biofunctionalization, and cell interactions

Beachley

Wen

2010

Progress in Polymer Science

451

281

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Extracellular matrix fibers (ECM) such as collagen, elastin, and keratin provide biological and physical support for cell attachment, proliferation, migration, differentiation and ultimately cell fate. Therefore, ECM fibers are an important component in tissue and organ development and regeneration. Meanwhile, polymer nanofibers could play the same critical role in tissue regeneration process. Fibrous structures can be fabricated from a variety of materials and methods with diameters ranging throughout the size scale where cells can sense individual fibers (several nanometers to several microns). Polymer nanofiber scaffolds can be designed in a way that predictably modulates a variety of important cell behaviors towards a desired overall function. The nanofibrous topography itself, independent of the fiber material, has demonstrated the potential to modulate cell behaviors desirable in tissue engineering such as: unidirectional alignment; increased viability, attachment, and ECM production; guided migration; and controlled differentiation. The versatility of polymer nanofibers for functionalization with biomolecules opens the door to vast opportunities for the design of tissue engineering scaffolds with even greater control over cell incorporation and function. Despite the promise of polymer nanofibers as tissue engineering scaffolds there have been few clinically relevant successes because no single fabrication technique currently combines control over structural arrangement, material composition, and biofunctionalization, while maintaining reasonable cost and yield. Promising strategies are currently being investigated to allow for the fabrication of optimal polymer nanofiber tissue engineering scaffolds with the goal of treating damaged and degenerated tissues in a clinical setting.

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“…The RhB-doped polymer nanofibers were fabricated by a direct drawing method16 from polymer solutions with dissolved fluorescent dyes (see Methods). As-fabricated nanofibers have lengths up to several millimeters with diameters from 200 to 800 nm, which is an optimal diameter for guiding visible light with respect to easy handling and efficient in/out coupling.…”

Section: Resultsmentioning

confidence: 99%

“…A series of passive polymer components have been fabricated by Xing et al using poly(trimethylene terephthalate) (PTT) nanofibers which were drawn from the PTT melt16. More importantly, polymers can host a variety of functional dopants including quantum dots and fluorescent dyes that can be used to tailor their properties with greater versatility.…”

mentioning

confidence: 99%

Wavelength-converted wave-guiding in dye-doped polymer nanofibers

2013

Sci Rep

Self Cite

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Nanoscale wavelength-converted optical components are promising components for communication and optical information processing in integrated photonic system. In this work, we report a facile strategy for realizing continuously tunable wavelength-converted wave-guiding in dye-doped nanofibers. The nanofibers with diameters of 200–800 nm have an absorption coefficient of about 80 cm−1 and a self-absorption coefficient of about 30 cm−1, and exhibit relatively high PL efficiency and high photobleaching resistance under an optical pump. By launching the pump light into the nanofibers, the excited light in the nanofibers got self-absorption and reemitted at a longer wavelength, resulting in a gradual wavelength conversion during propagation. On the basis of this wavelength-converted wave-guiding, nanoscale wavelength-converted splitters were demonstrated by assembling the nanofibers into crossed structures. We believe that the dye-doped nanofibers would bring new exciting opportunities in developing new wavelength-converted optical components for nanophotonic device integration.

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Nanofibers drawing and nanodevices assembly in poly(trimethylene terephthalate)

Cited by 157 publications

References 14 publications

Tuning Whispering Gallery Mode Lasing from Self-Assembled Polymer Droplets

Tuning Whispering Gallery Mode Lasing from Self-Assembled Polymer Droplets

Polymer nanofibrous structures: Fabrication, biofunctionalization, and cell interactions

Wavelength-converted wave-guiding in dye-doped polymer nanofibers

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