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Fabrication and Testing of Microfluidic Optomechanical Oscillators

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Published on: May 29, 2014

Mechanically Contacted Distributed-Feedback Optical Microcavity.

Yue Liu¹, Miao Liu¹, Jingyun Hu¹

¹Institute of Information Photonics Technology, Beijing University of Technology, Beijing 100124, China.

Nanomaterials (Basel, Switzerland)

|June 10, 2022

Summary

This summary is machine-generated.

We developed a simple method for creating distributed-feedback (DFB) optical microcavities using polymer semiconductors and nanogratings. This technique enables efficient amplified spontaneous emission with a low threshold for polymer lasers and LEDs.

Keywords:

amplified spontaneous emission distributed feedback mechanical contact optical microcavity organic semiconductors

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Area of Science:

Materials Science
Optoelectronics
Polymer Chemistry

Background:

Distributed-feedback (DFB) optical microcavities are crucial for laser and LED technologies.
Traditional fabrication methods for DFB microcavities can be complex and involve potential chemical incompatibilities.

Purpose of the Study:

To report a novel and simplified construction of DFB optical microcavities.
To demonstrate efficient amplified spontaneous emission (ASE) from polymer-based microcavities.
To explore potential applications in polymer lasers and microcavity light-emitting diodes (LEDs).

Main Methods:

Mechanical contact between a high-quality planar thin film of a polymeric semiconductor, poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-(benzo[2,1,3] thiadiazol-4,8-diyl)] (F8BT), and a large-area homogeneous nanograting.
Utilizing smooth, homogeneous polymer thin films without surface modulations.
Employing a fabrication approach that avoids solution processing to prevent chemical interactions.

Main Results:

Achieved strong amplified spontaneous emission (ASE) from the fabricated polymer microcavity.
Demonstrated a low threshold for ASE, indicating high efficiency.
The fabrication method simplifies DFB microcavity construction and avoids detrimental chemical interactions.

Conclusions:

The mechanical contact method offers a simplified and effective route for constructing DFB optical microcavities using polymeric semiconductors.
High-quality polymer thin films are suitable for microcavity fabrication without additional surface treatments.
This approach paves the way for new designs of microcavity light-emitting diodes and electrically pumped polymer lasers by metallizing nanogratings.