Details
| Original language | English |
|---|---|
| Article number | 2417 |
| Journal | Polymers |
| Volume | 13 |
| Issue number | 15 |
| Early online date | 23 Jul 2021 |
| Publication status | Published - 1 Aug 2021 |
Abstract
Small-scale optical components with micron or submicron features have grown in popularity in recent years. High-quality, high-efficient, and cost-effective processing approaches for polymer optics mass production are an urgent need. In this study, ultrasonic vibration will be introduced in embossing. The major advantage is that the required energy can be provided for process times ranging from a few hundred milliseconds to a few seconds, and that the process energy is provided at exactly the required location so that the structures in the surrounding area are not affected. Due to the strong correlation between electrical impedance and the temperature of the material, a novel impedance-based control strategy has been utilized for precisely controlling ultrasonic vibration during the embossing process. The investigation used two types of stamps with grating line widths of 4 µm and 500 nm, respectively. As a result, an embossing time of less than a few seconds was accomplished and a uniform embossed surface with an average fill rate of more than 75% could be achieved.
Keywords
- Embossing, Impedance-based control, Keywords: ultrasonic vibration, Micron and submicron structure
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Polymers and Plastics
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In: Polymers, Vol. 13, No. 15, 2417, 01.08.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental Investigation of the Rapid Fabrication of Micronand Submicron Structures on Polymers Utilizing Ultrasonic Assisted Embossing
AU - Zhu, Yongyong
AU - Bengsch, Sebastian
AU - Zheng, Lei
AU - Long, Yangyang
AU - Roth, Bernhard Wilhelm
AU - Wurz, Marc Christopher
AU - Twiefel, Jens
AU - Wallaschek, Jörg
N1 - Funding Information: Funding: This project funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453). Funding Information: Acknowledgments: The authors would like to thank the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for the financial and organizational support of this project.
PY - 2021/8/1
Y1 - 2021/8/1
N2 - Small-scale optical components with micron or submicron features have grown in popularity in recent years. High-quality, high-efficient, and cost-effective processing approaches for polymer optics mass production are an urgent need. In this study, ultrasonic vibration will be introduced in embossing. The major advantage is that the required energy can be provided for process times ranging from a few hundred milliseconds to a few seconds, and that the process energy is provided at exactly the required location so that the structures in the surrounding area are not affected. Due to the strong correlation between electrical impedance and the temperature of the material, a novel impedance-based control strategy has been utilized for precisely controlling ultrasonic vibration during the embossing process. The investigation used two types of stamps with grating line widths of 4 µm and 500 nm, respectively. As a result, an embossing time of less than a few seconds was accomplished and a uniform embossed surface with an average fill rate of more than 75% could be achieved.
AB - Small-scale optical components with micron or submicron features have grown in popularity in recent years. High-quality, high-efficient, and cost-effective processing approaches for polymer optics mass production are an urgent need. In this study, ultrasonic vibration will be introduced in embossing. The major advantage is that the required energy can be provided for process times ranging from a few hundred milliseconds to a few seconds, and that the process energy is provided at exactly the required location so that the structures in the surrounding area are not affected. Due to the strong correlation between electrical impedance and the temperature of the material, a novel impedance-based control strategy has been utilized for precisely controlling ultrasonic vibration during the embossing process. The investigation used two types of stamps with grating line widths of 4 µm and 500 nm, respectively. As a result, an embossing time of less than a few seconds was accomplished and a uniform embossed surface with an average fill rate of more than 75% could be achieved.
KW - Embossing
KW - Impedance-based control
KW - Keywords: ultrasonic vibration
KW - Micron and submicron structure
UR - http://www.scopus.com/inward/record.url?scp=85111655705&partnerID=8YFLogxK
U2 - 10.3390/polym13152417
DO - 10.3390/polym13152417
M3 - Article
AN - SCOPUS:85111655705
VL - 13
JO - Polymers
JF - Polymers
SN - 2073-4360
IS - 15
M1 - 2417
ER -