Počet záznamů: 1
Exploration of Higher-Order Mode Coupling in Long-Period Gratings for Sensitive Monitoring of Polyelectrolyte Self-Assembly at Nanoscale
- 1.
SYSNO ASEP 0436244 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Exploration of Higher-Order Mode Coupling in Long-Period Gratings for Sensitive Monitoring of Polyelectrolyte Self-Assembly at Nanoscale Tvůrce(i) Tian, F. (US)
Kaňka, Jiří (URE-Y)
Li, X. (US)
Du, H. (US)Celkový počet autorů 4 Zdroj.dok. Fiber Optic Sensors and Applications XI, 9098 - Proc. of SPIE. - Bellingham : SPIE, 2014 / Du H. Henry ; Pickrell Gary ; Udd Eric - ISSN 0277-786X - ISBN 9781628410358 Rozsah stran 90980r1-90980r8 Poč.str. 8 s. Forma vydání Tištěná - P Akce Fiber Optic Sensors and Applications XI Datum konání 08.05.2014-09.05.2014 Místo konání Baltimore Země US - Spojené státy americké Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Long-period grating ; single mode fiber ; mode coupling Vědní obor RIV JA - Elektronika a optoelektronika, elektrotechnika CEP LH11038 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora URE-Y - RVO:67985882 UT WOS 000345069900019 EID SCOPUS 84907367584 DOI 10.1117/12.2053471 Anotace Layer-by-layer (LbL) self-assembly via hydrogen bonding is one of the primary mechanisms to achieve stimuliresponsive polyelectrolyte thin films for a variety of applications. The ability to monitor the individual LbL steps in situ is of great significance in the development and understanding of hydrogen-bonded LbL systems of new design functions and properties. Long-period gratings in single-mode fiber (SMF-LPG) has the potential for such application by virtue of its high index sensitivity. We report a theoretical and experimental investigation to sort out the coupled cladding mode that is most sensitive to molecular adsorption events during LbL deposition. We have undertaken a combined theoretical and experimental investigation to illustrate and demonstrate the strong correlation between the order of the coupled cladding modes in long-period gratings (LPG) in conventional single mode fiber and their sensitivity to the process of layer-by-layer (LbL) assembly of polyelectrolyte multi-layers. We show that high-order cladding modes such as LP0,10 in LPG are significantly more sensitive than their lower-order counterparts such as LP0,2, with LP0,10 yielding a shift of 1.575 nm in resonance wavelength per polyelectrolyte repeating unit of poly(vinyl pyrrolidone)/poly(methacrylic acid) bi-layer. We illustrate the potential utility of SMF-LPG integrated with stimuli-responsive LbL thin films as sensors. The integrated LPG/LbL strategy as a robust LbL test-bed has broad ramifications in exploring and exploiting sensors and devices enabled by versatile, stimuli-responsive polyelectrolyte thin films Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2015
Počet záznamů: 1