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Updated: Apr 21, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

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Random-cavity lasing from electrospun polymer fiber networks.

Sarah Krämmer¹, Christoph Vannahme, Cameron L C Smith

¹Institute of Applied Physics (APH), Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Str. 1, 76131, Karlsruhe, Germany.

Advanced Materials (Deerfield Beach, Fla.)

|November 1, 2014

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Researchers demonstrate lasing emission from random cavities within Rhodamine-doped polymer fiber networks. This study highlights the potential of these fiber lasers for novel photonic device applications.

Area of Science:

Photonics and Materials Science
Optoelectronics
Polymer Science

Background:

Random cavities can support lasing phenomena.
Electrospun polymer fibers offer unique morphologies for photonic applications.
Rhodamine dyes are suitable gain media for optical applications.

Purpose of the Study:

To investigate and demonstrate lasing emission from random cavities in electrospun Rhodamine-doped polymer fiber networks.
To analyze the origin and characteristics of the observed laser emission.
To explore the potential of these fiber networks as novel photonic devices.

Main Methods:

Fabrication of Rhodamine-doped polymer fiber networks using electrospinning.
Spatially resolved spectroscopy to analyze emission properties.

Keywords:

electrospinning fiber networks lasing random cavities

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Last Updated: Apr 21, 2026

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Spectral analysis to identify laser characteristics and resonator modes.

Main Results:

Successful demonstration of lasing emission from the fiber network.
Identification of individual ring resonators as the source of laser emission.
Characterization of the spectral properties of the lasing emission.

Conclusions:

The study confirms lasing emission from randomly distributed ring resonators within electrospun fiber networks.
These fiber lasers offer a simple and effective platform for developing new photonic devices.
The network morphology of electrospun fibers can be advantageously utilized for photonic applications.