37 citations · 37 across the 3 of their papers we have counts for
10 papers
Violating Kirchhoff's Law of Thermal Radiation in Semitransparent Structures
Yubin Park, Viktar S. Asadchy, Bo Zhao +3
Kirchhoff's law of thermal radiation imposes a constraint on photon-based energy harvesting processes since part of the incident energy flux is inevitably emitted back to the sourc…
High-Performance Photonic Transformers for DC Voltage Conversion
Bo Zhao, Sid Assawaworrarit, Parthiban Santhanam +2
Direct current (DC) converters play an essential role in electronic circuits. Conventional high-efficiency DC voltage converters, especially step-up type, rely on switch-mode opera…
Controlling the dopant profile for SRH suppression at low current densities in 1330nm GaInAsP light-emitting diodes
Parthiban Santhanam, Wei Li, Bo Zhao +5
The quantum efficiency of double hetero-junction light-emitting diodes (LEDs) can be significantly enhanced at low current density by tailoring the spatial profile of dopants to su…
Sub-Wavelength Passive Optical Isolators Using Photonic Structures Based on Weyl Semimetals
Viktar Asadchy, Cheng Guo, Bo Zhao +1
We design sub-wavelength high-performing non-reciprocal optical devices using recently discovered magnetic Weyl semimetals. These passive bulk topological materials exhibit anomalo…
Integrated near-field thermo-photovoltaics for on-demand heat recycling
Gaurang R. Bhatt, Bo Zhao, Samantha Roberts +7
The energy transferred via thermal radiation between two surfaces separated by nanometers distances (near-field) can be much larger than the blackbody limit. However, realizing a r…
Axion-Field-Enabled Nonreciprocal Thermal Radiation in Weyl Semimetals
Bo Zhao, Cheng Guo, Christina A. C. Garcia +2
Objects around us constantly emit and absorb thermal radiation. The emission and absorption processes are governed by two fundamental radiative properties: emissivity and absorptiv…