Yi Ji Tan
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View article: On‐Chip Sensing with Slow Light Topological Cavities
On‐Chip Sensing with Slow Light Topological Cavities Open
Terahertz (THz) on‐chip sensing has emerged as a powerful approach for high spatial resolution, real‐time, label‐free, and non‐invasive detection. Valley photonic crystals (VPC)‐based waveguide‐cavity systems featuring topologically protec…
View article: Emergent Berry Curvature in Inversion‐Symmetric Photonic Crystals for Ultraconfined Topological States
Emergent Berry Curvature in Inversion‐Symmetric Photonic Crystals for Ultraconfined Topological States Open
An interface between two periodic structures is topological when the global periodicity cannot be restored through local deformations. In time‐reversal symmetric photonic crystals, such interfaces typically form between structures with dis…
View article: On-chip topological edge state cavities
On-chip topological edge state cavities Open
View article: Electric-field Control of Giant Ferronics
Electric-field Control of Giant Ferronics Open
Ferrons are quantum excitations of electric polarization in ferroelectrics and electric analogues of magnons but have lacked direct experimental verification at room temperature. We harness the coupling of soft phonons and ferroelectric or…
View article: Monolithic Terahertz Topological Mach‐Zehnder Interferometer
Monolithic Terahertz Topological Mach‐Zehnder Interferometer Open
The pursuit of on‐chip electromagnetic wave control for high throughput communication, spectroscopy, and quantum computing underlies the motivation for terahertz photonic integrated circuitry. Recent breakthroughs in topological photonics …
View article: On‐Chip Active Non‐Reciprocal Topological Photonics
On‐Chip Active Non‐Reciprocal Topological Photonics Open
Chip‐scale non‐reciprocity is essential for advancing integrated photonics, particularly in realizing photonic circulators and isolators for data communication, signal modulation, and quantum computing. However, achieving a non‐reciprocal …
View article: Slow light topological photonics with counter-propagating waves and its active control on a chip
Slow light topological photonics with counter-propagating waves and its active control on a chip Open
Topological slow light exhibits potential to achieve stopped light by virtue of its widely known robust and non-reciprocal behaviours. Conventional approach for achieving topological slow light often involves flat-band engineering without …
View article: Photonic Supercoupling in Silicon Topological Waveguides
Photonic Supercoupling in Silicon Topological Waveguides Open
Electromagnetic wave coupling between photonic systems relies on the evanescent field typically confined within a single wavelength. Extending evanescent coupling distance requires low refractive index contrast and perfect momentum matchin…
View article: Valley-conserved topological integrated antenna for 100-Gbps THz 6G wireless
Valley-conserved topological integrated antenna for 100-Gbps THz 6G wireless Open
The topological phase revolutionized wave transport, enabling integrated photonic interconnects with sharp light bending on a chip. However, the persistent challenge of momentum mismatch during intermedium topological mode transitions due …
View article: Spatiotemporal light shaping using silicon photonics for 6G communications
Spatiotemporal light shaping using silicon photonics for 6G communications Open
The ever-growing number of interconnected devices and the emergence of high-bandwidth technologies such as holographic communications in mixed reality are driving an exponential growth in the demand for terabits-per-second (Tbps) data rate…