Non-Hermitian and topological photonics: optics at an exceptional point
In the past few years, concepts from non-Hermitian (NH) physics, originally developed within
the context of quantum field theories, have been successfully deployed over a wide range of …
the context of quantum field theories, have been successfully deployed over a wide range of …
Optical wafer defect inspection at the 10 nm technology node and beyond
The growing demand for electronic devices, smart devices, and the Internet of Things
constitutes the primary driving force for marching down the path of decreased critical …
constitutes the primary driving force for marching down the path of decreased critical …
Tunable topological charge vortex microlaser
The orbital angular momentum (OAM) intrinsically carried by vortex light beams holds a
promise for multidimensional high-capacity data multiplexing, meeting the ever-increasing …
promise for multidimensional high-capacity data multiplexing, meeting the ever-increasing …
High-purity orbital angular momentum states from a visible metasurface laser
Orbital angular momentum (OAM) from lasers holds promise for compact, at-source
solutions for applications ranging from imaging to communications. However, conjugate …
solutions for applications ranging from imaging to communications. However, conjugate …
Chiral exceptional point and coherent suppression of backscattering in silicon microring with low loss Mie scatterer
Non-Hermitian systems with their spectral degeneracies known as exceptional points (EPs)
have been explored for lasing, controlling light transport, and enhancing a sensor's …
have been explored for lasing, controlling light transport, and enhancing a sensor's …
Non-Hermitian topological photonics
Recent years have witnessed a flurry of research activities in topological photonics,
predominantly driven by the prospect for topological protection–a property that endows such …
predominantly driven by the prospect for topological protection–a property that endows such …
PT-symmetric absorber-laser enables electromagnetic sensors with unprecedented sensitivity
Achieving extraordinarily high sensitivity is a long-sought goal in the development of novel
and more capable electromagnetic sensors. We present here how a coherent perfect …
and more capable electromagnetic sensors. We present here how a coherent perfect …
Room temperature electrically pumped topological insulator lasers
Topological insulator lasers (TILs) are a recently introduced family of lasing arrays in which
phase locking is achieved through synthetic gauge fields. These single frequency light …
phase locking is achieved through synthetic gauge fields. These single frequency light …
Gain-induced topological response via tailored long-range interactions
The ability to tailor the hop** interactions between the constituent elements of a physical
system could enable the observation of unusual phenomena that are otherwise inaccessible …
system could enable the observation of unusual phenomena that are otherwise inaccessible …
Orbital angular momentum lasers
Light can be tailored to carry angular momentum well beyond the restriction of its two spin
states, left-and right-circularly polarized light, by imbuing it with orbital angular momentum …
states, left-and right-circularly polarized light, by imbuing it with orbital angular momentum …