7.7k citations
- City University of New YorkUS1.1k papers
- City College of New YorkUS277 papers
- College of Staten IslandUS199 papers
- American Museum of Natural HistoryUS179 papers
- Lehman CollegeUS163 papers
- Queens College, CUNYUS163 papers
- New York City College of TechnologyUS143 papers
- Baruch CollegeUS118 papers
- Hunter CollegeUS113 papers
- CUNY Advanced Science Research CenterUS85 papers
- Centre National de la Recherche ScientifiqueFR79 papers
- Princeton UniversityUS64 papers
11 papers · 2 filters
Contrasting Spectral Signatures and Sensitivities of CPA-Lasing in a -Symmetric Periodic Structure
Li Ge, Liang Feng
The CPA-laser is a coexisting state of coherent perfect absorption and lasing that was proposed in parity-time () symmetric photonic systems. In this work we show that the…
Symmetry, stability, and computation of degenerate lasing modes
David Liu, Bo Zhen, Li Ge +6
We present a general method to obtain the stable lasing solutions for the steady-state ab-initio lasing theory (SALT) for the case of a degenerate symmetric laser in two dimensions…
Symmetry-protected zero-mode laser with a tunable spatial profile
Li Ge
We propose to utilize symmetry-protected zero modes of a photonic lattice to realize a single-mode, fixed-frequency, and spatially tunable laser. These properties are the consequen…
Non-Hermitian engineering of single mode two dimensional laser arrays
Mohammad H. Teimourpour, Li Ge, Demetrios N. Christodoulides +1
A new scheme for building two dimensional laser arrays that operate in the single supermode regime is proposed. This is done by introducing an optical coupling between the laser ar…
Condensation of Thresholds in Multimode Microlasers
Li Ge, Hui Cao, A. Douglas Stone
We show from ab initio laser theory that by choosing an appropriate spatial pump profile, many different spatial modes of a typical microlaser can be turned on at the same pump ene…
Experimental demonstration of spontaneous chirality in a nonlinear microresonator
Qi-Tao Cao, He-Ming Wang, Chun-Hua Dong +6
Chirality is an important concept that describes the asymmetry property of a system, which usually emerges spontaneously due to mirror symmetry breaking. Such spontaneous chirality…