As‐Grown Miniaturized True Zero‐Order Waveplates Based on Low‐Dimensional Ferrocene Crystals

As‐Grown Miniaturized True Zero‐Order Waveplates Based on Low‐Dimensional Ferrocene Crystals

Advanced Materials

10.1002/adma.202302468

http://dx.doi.org/10.1002/adma.202302468

Zhipeng Li, Xuezhi Ma, Fengxia Wei, Dapeng Wang, Zeyu Deng, Mengting Jiang, Arif Siddiquee, Kun Qi, Di Zhu, Meng Zhao, Mengzhe Shen, Pieremanuele Canepa, Shanshan Kou, Jiao Lin, Qian Wang

Mechanical Engineering, General Materials Science, Mechanics of Materials

19 May 2023

Li, Z., Ma, X., Wei, F., Wang, D., Deng, Z., Jiang, M., Siddiquee, A., Qi, K., Zhu, D., Zhao, M., Shen, M., Canepa, P., Kou, S., Lin, J., & Wang, Q. (2023). As‐Grown Miniaturized True Zero‐Order Waveplates Based on Low‐Dimensional Ferrocene Crystals. Advanced Materials, 35(32). Portico. https://doi.org/10.1002/adma.202302468

AbstractAs basic optical elements, waveplates with anisotropic electromagnetic responses are imperative for manipulating light polarization. Conventional waveplates are manufactured from bulk crystals (e.g., quartz and calcite) through a series of precision cutting and grinding steps, which typically result in large size, low yield, and high cost. In this study, a bottom‐up method is used to grow ferrocene crystals with large anisotropy to demonstrate self‐assembled ultrathin true zero‐order waveplates without additional machining processing, which is particularly suited for nanophotonic integration. The van der Waals ferrocene crystals exhibit high birefringence (Δn (experiment) = 0.149  ±  0.002 at 636 nm), low dichroism Δκ (experiment) = −0.0007 at 636 nm), and a potentially broad operating range (550 nm to 20 µm) as suggested by Density Functional Theory (DFT) calculations. In addition, the grown waveplate's highest and the lowest principal axes (n1 and n3, respectively) are in the a–c plane, where the fast axis is along one natural edge of the ferrocene crystal, rendering them readily usable. The as‐grown, wavelength‐scale‐thick waveplate allows the development of further miniaturized systems via tandem integration.

Publisher Copyright

This research / project is supported by the ASTAR - AME IRG
Grant Reference no. : A20E5c0095

This research / project is supported by the A*STAR - Career Development Fund
Grant Reference no. : C210112044

This research / project is supported by the A*STAR - Career Development Fund
Grant Reference no. : C210112054

This research / project is supported by the A*STAR - Career Development Fund
Grant Reference no. : C210812027

This research / project is supported by the A*STAR - Career Development Fund-Seed Projects
Grant Reference no. : 222D800038

This is the peer reviewed version of the following article: Li, Z., Ma, X., Wei, F., Wang, D., Deng, Z., Jiang, M., Siddiquee, A., Qi, K., Zhu, D., Zhao, M., Shen, M., Canepa, P., Kou, S., Lin, J., & Wang, Q. (2023). As‐Grown Miniaturized True Zero‐Order Waveplates Based on Low‐Dimensional Ferrocene Crystals. Advanced Materials, 35(32). Portico. https://doi.org/10.1002/adma.202302468, which has been published in final form at doi.org/10.1002/adma.202302468. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

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