5 September 2014 Formation of sub pico-liter liquid periodic structure in a hollow optical fiber for photonic device applications
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Abstract
We report a unique technique to generate a liquid periodic structure whose unit volume is as low as a few hundred femto-liter. Liquids such as water, toluene and ethanol were filled in a hollow optical fiber (hole diameter of 8 and 13μm), which were locally heated by a traversing miniature electric furnace. The periods between droplets could be varied flexibly in the range from 14 to 100μm and the volume of individual droplet was in the range from 112 to 845 femto-liter. We also fabricated the periodic liquid droplets with quantum dots, whose fluorescence was successfully measured in each droplet. These periodic liquid droplets could serve as flexible liquid long period fiber grating for the hollow optical fiber, which can be further applied in various mechanical and bio-chemical sensors
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Jihyun Hwang, Jihyun Hwang, Jongki Kim, Jongki Kim, Jiyoung Park, Jiyoung Park, Kyunghwan Oh, Kyunghwan Oh, } "Formation of sub pico-liter liquid periodic structure in a hollow optical fiber for photonic device applications", Proc. SPIE 9200, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VIII, 920006 (5 September 2014); doi: 10.1117/12.2060364; https://doi.org/10.1117/12.2060364
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