393 citations
- Massachusetts Institute of TechnologyUS61 papers
- National University of SingaporeSG24 papers
- Nanyang Technological UniversitySG15 papers
- University of California, BerkeleyUS12 papers
- Agency for Science, Technology and ResearchSG6 papers
- Singapore University of Technology and DesignSG6 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Institute for Infocomm ResearchSG4 papers
- National Institute of Standards and TechnologyUS4 papers
- Institute of High Performance ComputingSG3 papers
- Stanford UniversityUS3 papers
- Tongji UniversityCN3 papers
8 papers · 1 filter
Low-threshold optically pumped lasing in highly strained Ge nanowires
Shuyu Bao, Daeik Kim, Chibuzo Onwukaeme +11
The integration of efficient, miniaturized group IV lasers into CMOS architecture holds the key to the realization of fully functional photonic-integrated circuits. Despite several…
Hamiltonian and Phase-Space Representation of Spatial Solitons
Hanhong Gao, Lei Tian, George Barbastathis
We use Hamiltonian ray tracing and phase-space representation to describe the propagation of a single spatial soliton and soliton collisions in a Kerr nonlinear medium. Hamiltonian…
Compressive X-ray phase tomography based on the transport of intensity equation
Lei Tian, Jonathan C. Petruccelli, Qin Miao +3
We develop and implement a compressive reconstruction method for tomographic recovery of refractive index distribution for weakly attenuating objects in a microfocus X-ray system.…
Design of thin-film photonic metamaterial Lüneburg lens using analytical approach
Hanhong Gao, Baile Zhang, Steven G. Johnson +1
We design an all-dielectric Lüneburg lens as an adiabatic space-variant lattice explicitly accounting for finite film thickness. We describe an all-analytical approach to compensat…
Affine nonmagnetic transformation optics and its application to a practical bending adapter design
Hongyi Xu, Baile Zhang, Tianyuan Yu +2
One of the bottlenecks that limit the transition of transformation-optics devices from concepts to practical use is the non-unit magnetic permeability generally required from a mat…
Broadband phase-preserved optical elevator
Yuan Luo, Tiancheng Han, Baile Zhang +2
Phase-preserved optical elevator is an optical device to lift up an entire plane virtually without distortion in light path or phase. Using transformation optics, we have predicted…