Humidity induced inhibition and enhancement of spontaneous emission of dye molecules in a single PEG nanofiber

Belkis Gökbulut; Ekrem Yartasi; Ezgi Sunar; Ozlem Ipek Kalaoglu-Altan; Tugce Nihal Gevrek; Amitav Sanyal; Mehmet Naci Inci

doi:10.1364/OME.8.000568

Humidity induced inhibition and enhancement of spontaneous emission of dye molecules in a single PEG nanofiber

Belkis Gökbulut, Ekrem Yartasi, Ezgi Sunar, Ozlem Ipek Kalaoglu-Altan, Tugce Nihal Gevrek, Amitav Sanyal, Mehmet Naci Inci^*

^*Corresponding author for this work

Bogazici University

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Intrinsic properties of a polyethylene glycol nanofiber are utilized for the first time to dynamically modify the spontaneous emission rate of encapsulated boradiazaindacene dye molecules with fluorescence lifetime imaging. Nanofibers, fabricated by the electrospinning technique, are exposed to relative humidity up to 80%. The spontaneous emission rate of the confined boradiazaindacene is observed to inhibit and enhance the nanofibers' swelling. The Purcell factor is determined to demonstrate an oscillatory behavior resulting from the distinct characteristics of the mode volume, and the step-like increase of the quality factor of the nanofiber cavity due to the changes in the refractive index and fiber diameter.

Original language	English
Pages (from-to)	568-580
Number of pages	13
Journal	Optical Materials Express
Volume	8
Issue number	3
DOIs	https://doi.org/10.1364/OME.8.000568
Publication status	Published - 1 Mar 2018
Externally published	Yes

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Publisher Copyright:
© 2018 Optical Society of America.

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abstract = "Intrinsic properties of a polyethylene glycol nanofiber are utilized for the first time to dynamically modify the spontaneous emission rate of encapsulated boradiazaindacene dye molecules with fluorescence lifetime imaging. Nanofibers, fabricated by the electrospinning technique, are exposed to relative humidity up to 80%. The spontaneous emission rate of the confined boradiazaindacene is observed to inhibit and enhance the nanofibers' swelling. The Purcell factor is determined to demonstrate an oscillatory behavior resulting from the distinct characteristics of the mode volume, and the step-like increase of the quality factor of the nanofiber cavity due to the changes in the refractive index and fiber diameter.",

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AU - Gökbulut, Belkis

AU - Yartasi, Ekrem

AU - Sunar, Ezgi

AU - Kalaoglu-Altan, Ozlem Ipek

AU - Gevrek, Tugce Nihal

AU - Sanyal, Amitav

AU - Inci, Mehmet Naci

PY - 2018/3/1

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N2 - Intrinsic properties of a polyethylene glycol nanofiber are utilized for the first time to dynamically modify the spontaneous emission rate of encapsulated boradiazaindacene dye molecules with fluorescence lifetime imaging. Nanofibers, fabricated by the electrospinning technique, are exposed to relative humidity up to 80%. The spontaneous emission rate of the confined boradiazaindacene is observed to inhibit and enhance the nanofibers' swelling. The Purcell factor is determined to demonstrate an oscillatory behavior resulting from the distinct characteristics of the mode volume, and the step-like increase of the quality factor of the nanofiber cavity due to the changes in the refractive index and fiber diameter.

AB - Intrinsic properties of a polyethylene glycol nanofiber are utilized for the first time to dynamically modify the spontaneous emission rate of encapsulated boradiazaindacene dye molecules with fluorescence lifetime imaging. Nanofibers, fabricated by the electrospinning technique, are exposed to relative humidity up to 80%. The spontaneous emission rate of the confined boradiazaindacene is observed to inhibit and enhance the nanofibers' swelling. The Purcell factor is determined to demonstrate an oscillatory behavior resulting from the distinct characteristics of the mode volume, and the step-like increase of the quality factor of the nanofiber cavity due to the changes in the refractive index and fiber diameter.

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Humidity induced inhibition and enhancement of spontaneous emission of dye molecules in a single PEG nanofiber

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