Slow light nanocoatings for ultrashort pulse compression

Marcus Ossiander*, Yao-Wei Huang, Wei Ting Chen, Zhenhao Wang, Xinghui Yin, Yousef Ahmed Ibrahim, Martin Schultze, Federico Capasso*


研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)


Transparent materials do not absorb light but have profound influence on the phase evolution of transmitted radiation. One consequence is chromatic dispersion, i.e., light of different frequencies travels at different velocities, causing ultrashort laser pulses to elongate in time while propagating. Here we experimentally demonstrate ultrathin nanostructured coatings that resolve this challenge: we tailor the dispersion of silicon nanopillar arrays such that they temporally reshape pulses upon transmission using slow light effects and act as ultrashort laser pulse compressors. The coatings induce anomalous group delay dispersion in the visible to near-infrared spectral region around 800 nm wavelength over an 80 nm bandwidth. We characterize the arrays’ performance in the spectral domain via white light interferometry and directly demonstrate the temporal compression of femtosecond laser pulses. Applying these coatings to conventional optics renders them ultrashort pulse compatible and suitable for a wide range of applications.
原文American English
期刊Nature Communications
出版狀態Published - 11 11月 2021


深入研究「Slow light nanocoatings for ultrashort pulse compression」主題。共同形成了獨特的指紋。