Welcome to the homepage of the ISU Nano-Optics Group !

Our group is in the Department of Physics & Astronomy at Iowa State University. We are also associated with the U.S. Department of Energy's Ames Laboratory.

We are dedicated to exploring nanoscale light-matter interactions in varieties of novel materials including graphene, two-dimensional layered materials beyond graphene, complex materials and so on. In order to beat the diffraction limit and explore optical physics of materials at the nanometer length scale, we take advantage of the advanced near-field and tip-enhanced techniques.

The main capabilities of our group will include ultra-small & ultra-fast optical imaging and spectroscopy, tip-enhanced Raman and fluorescence imaging and spectroscopy, nanoscale infrared vibrational spectroscopy and so on. We intend to cover a wide spectral range from terahertz to visible in the near future.

We sincerely welcome researchers within the campus, across the country or even around the world to contact us for potential collaborations!

Selected Publications

F. Hu*, Y. Luan*, Z. Fei, I. Z. Palubski, M. D. Goldflam, S. Dai, J.-S. Wu, K. W. Post, G.C.A.M. Janssen, M. M. Fogler, D. N. Basov. "Imaging the localized plasmon resonance modes in graphene nanoribbons". Nano Letters (2017) . *Equal contributions.

Z. Fei, G. X. Ni, B.-Y. Jiang, M. M. Fogler, and D. N. Basov. "Nanoplasmonic responses at electronic boundaries in graphene (Invited review)". ACS Photonics (2017)

F. Hu, Y. Luan, M. E. Scott, J. Yan, D. G. Mandrus, X. Xu, Z. Fei. "Imaging exciton-polariton transport in MoSe2 waveguides". Nature Photonics 11, 356-360 (2017) .

Z. Fei, J. J. Foley IV, W. Gannett, M. K. Liu, S. Dai, G. X. Ni, A. Zettl, M. M. Fogler, G. P. Wiederrecht, S. K. Gray, D. N. Basov. "Ultra-confined plasmonic hotspots inside graphene nanobubbles". Nano Lett. 16, 7842-7848 (2016) .

Z. Fei, M. D. Goldflam, J.-S. Wu, S. Dai, M. Wagner, A. S. McLeod, M. K. Liu, K. W. Post, S. Zhu, G.C.A.M. Janssen, M. M. Fogler, D. N. Basov. "Edge and surface plasmons in graphene nanoribbons". Nano Lett. 15, 8271-8276 (2015).

S. Dai, Z. Fei, A. S. Rodin, W. Gannett, M. Wagner, W. Regan, A. S. McLeod, M. K. Liu, M. Thiemens, G. Dominguez, A. H. Castro-Neto, A. Zettl, F. Keilmann, M. M. Fogler, D. N. Basov. "Tunable Phonon Polaritons in Atomically Thin van der Waals Crystals of Boron Nitride." Science 343,1125-1129 (2014).

Z. Fei, A. S. Rodin, W. Gannett, S. Dai, W. Regan, M. Wagner, M. K. Kiu, A. S. McLeod, G. Dominguez, M.Thiemens, M. M. Fogler, A. H. Castro-Neto, F. Keilmann, A. Zettl, R. Hillenbrand, M. M. Fogler, D. N. Basov. "Electronic and plasmonic phenomena at graphene grain boundaries" Nature Nanotech. 8, 821-825 (2013).

Z. Fei, A. S. Rodin, G. O. Andreev, W. Bao, A. S. McLeod, M. Wagner, L. M. Zhang, Z. Zhao, G. Dominguez, M. Thiemens, M. M. Fogler, A. H. Castro-Neto, C. N. Lau, F. Keilmann, D. N. Basov. "Gate-tuning of graphene plasmons revealed by infrared nano-imaging". Nature 487, 825 (2012).

- Click here for the complete list of publications.