1.7k citations · 2.6k across the 25 of their papers we have counts for
25 papers
Fundamental limits on second harmonic generation
Jewel Mohajan, Pengning Chao, Weiliang Jin +2
Recent advances in fundamental performance limits for power quantities based on Lagrange duality are proving to be a powerful theoretical tool for understanding electromagnetic wav…
Laser cooling assisted thermal management of lightsails
Weiliang Jin, Wei Li, Chinmay Khandekar +2
A lightsail can be accelerated to ultra-high speed by the radiation pressure of a laser having an intensity of the order of GW/m, which though presents a critical challenge in…
Polarization-independent isotropic nonlocal metasurfaces with wavelength-controlled functionality
Olivia Y. Long, Cheng Guo, Weiliang Jin +1
Flat optics has demonstrated great advances in miniaturizing conventional, bulky optical elements due to the recent developments in metasurface design. Specific applications of suc…
Adaptive four-level modeling of laser cooling of solids
Weiliang Jin, Cheng Guo, Meir Orenstein +1
Laser cooling of rare-earth doped solids has been demonstrated across a wide range of material platforms, inspiring the development of simple phenomenological models such as the fo…
Direct thermal infrared vision via nanophotonic detector design
Chinmay Khandekar, Weiliang Jin, Shanhui Fan
Detection of infrared (IR) photons in a room-temperature IR camera is carried out by a two-dimensional array of microbolometer pixels which exhibit temperature-sensitive resistivit…
Integrated Cooling (i-Cool) Textile of Heat Conduction and Sweat Transportation for Personal Perspiration Management
Yucan Peng, Wei Li, Bofei Liu +13
Perspiration evaporation plays an indispensable role in human body heat dissipation. However, conventional textiles show limited perspiration management capability in moderate/prof…
Maximal nighttime electrical power generation via optimal radiative cooling
Lingling Fan, Wei Li, Weiliang Jin +2
We present a systematic optimization of nighttime thermoelectric power generation system utilizing radiative cooling. We show that an electrical power density over 2 W/m2, two orde…
Inverse design of lightweight broadband reflector for efficient lightsail propulsion
Weiliang Jin, Wei Li, Meir Orenstein +1
Light can exert forces on objects, promising to propel a meter-scale lightsail to near the speed of light. The key to address many challenges in such an ambition hinges on the nano…
Fundamental limits to radiative heat transfer: theory
Sean Molesky, Prashanth S. Venkataram, Weiliang Jin +1
Near-field radiative heat transfer between bodies at the nanoscale can surpass blackbody limits on thermal radiation by orders of magnitude due to contributions from evanescent ele…
-operator bounds on angle-integrated absorption and thermal radiation for arbitrary objects
Sean Molesky, Weiliang Jin, Prashanth S. Venkataram +1
We derive fundamental per-channel bounds on angle-integrated absorption and thermal radiation for arbitrary bodies---for any given material susceptibility and bounding region---tha…
Fundamental limits to radiative heat transfer: the limited role of nanostructuring in the near field
Prashanth S. Venkataram, Sean Molesky, Weiliang Jin +1
In a complementary article, we exploited algebraic properties of Maxwell's equations and fundamental principles such as electromagnetic reciprocity and passivity, to derive fundame…
400%/W second harmonic conversion efficiency in -diameter gallium phosphide-on-oxide resonators
Alan D. Logan, Michael Gould, Emma R. Schmidgall +7
Second harmonic conversion from 1550~nm to 775~nm with an efficiency of 400% W is demonstrated in a gallium phosphide (GaP) on oxide integrated photonic platform. The platfo…
Inverse Design of Compact Multimode Cavity Couplers
Weiliang Jin, Sean Molesky, Zin Lin +2
Efficient coupling between on-chip sources and cavities plays a key role in silicon photonics. However, despite the importance of this basic functionality, there are few systematic…
Material Scaling and Frequency-Selective Enhancement of Near-Field Radiative Heat Transfer for Lossy Metals in Two Dimensions via Inverse Design
Weiliang Jin, Sean Molesky, Zin Lin +1
The super-Planckian features of radiative heat transfer in the near-field are known to depend strongly on both material and geometric design properties. However, the relative impor…
Outlook for inverse design in nanophotonics
Sean Molesky, Zin Lin, Alexander Y. Piggott +3
Recent advancements in computational inverse design have begun to reshape the landscape of structures and techniques available to nanophotonics. Here, we outline a cross section of…
Inverse designed photonic fibers and metasurfaces for nonlinear frequency conversion
Chawin Sitawarin, Weiliang Jin, Zin Lin +1
Typically, photonic waveguides designed for nonlinear frequency conversion rely on intuitive and established principles, including index guiding and band gap engineering, and are b…
Enhanced nonlinear frequency conversion and Purcell enhancement at exceptional points
Adi Pick, Zin Lin, Weiliang Jin +1
We derive analytical formulas quantifying radiative emission from subwavelength emitters embedded in triply resonant nonlinear cavities supporting exceptional points (EP)…
Overcoming limits to near-field radiative heat transfer in uniform planar media through multilayer optimization
Weiliang Jin, Riccardo Messina, Alejandro W. Rodriguez
Radiative heat transfer between uniform plates is bounded by the narrow range and limited contribution of surface waves. Using a combination of analytical calculations and numerica…
Strongly coupled near-field radiative and conductive heat transfer between planar objects
Riccardo Messina, Weiliang Jin, Alejandro W. Rodriguez
We study the interplay of conductive and radiative heat transfer (RHT) in planar geometries and predict that temperature gradients induced by radiation can play a significant role…
Exact formulas for radiative heat transfer between planar bodies under arbitrary temperature profiles: modified asymptotics and sign-flip transitions
Riccardo Messina, Weiliang Jin, Alejandro W. Rodriguez
We derive exact analytical formulas for the radiative heat transfer between parallel slabs separated by vacuum and subject to arbitrary temperature profiles. We show that, dependin…
General formulation of coupled radiative and conductive heat transfer between compact bodies
Weiliang Jin, Riccardo Messina, Alejandro W. Rodriguez
We present a general framework for studying strongly coupled radiative and conductive heat transfer between arbitrarily shaped bodies separated by sub-wavelength distances. Our for…
Giant frequency-selective near-field energy transfer in active--passive structures
Chinmay Khandekar, Weiliang Jin, Owen D. Miller +2
We apply a fluctuation electrodynamics framework in combination with semianalytical (dipolar) approximations to study amplified spontaneous energy transfer (ASET) between active an…
Amplified and directional spontaneous emission from arbitrary composite bodies: self-consistent treatment of Purcell effect below threshold
Weiliang Jin, Chinmay Khandekar, Adi Pick +2
We study amplified spontaneous emission (ASE) from wavelength-scale composite bodies--complicated arrangements of active and passive media--demonstrating highly directional and tun…
Temperature control of thermal radiation from heterogeneous bodies
Weiliang Jin, Athanasios G. Polimeridis, Alejandro W. Rodriguez
We demonstrate that recent advances in nanoscale thermal transport and temperature manipulation can be brought to bear on the problem of tailoring thermal radiation from compact em…