Shanhui Fan
Stanford University
H-index: 165
North America-United States
Description
Shanhui Fan, With an exceptional h-index of 165 and a recent h-index of 112 (since 2020), a distinguished researcher at Stanford University, specializes in the field of Nanophotonics, Photonic Crystals, Metamaterials, Plasmonics, Solar Cells.
His recent articles reflect a diverse array of research interests and contributions to the field:
Nanophotonic Heat Exchanger for Enhanced Near-Field Radiative Heat Transfer
Radiative cooling textiles using industry-standard particle-free nonporous micro-structured fibers
Measuring, processing, and generating partially coherent light with self-configuring optics
Apparatuses and methods involving DC voltage conversion using photonic transformers
Strong coupling and single-photon nonlinearity in free-electron quantum optics
Photonic Blockchain Based on Optical Proof-of-Work
Structures for radiative cooling
Apparatuses and methods involving thermally tuned composite material
Professor Information
University | Stanford University |
---|---|
Position | Professor of Electrical Engineering |
Citations(all) | 113960 |
Citations(since 2020) | 50349 |
Cited By | 99005 |
hIndex(all) | 165 |
hIndex(since 2020) | 112 |
i10Index(all) | 663 |
i10Index(since 2020) | 520 |
University Profile Page | Stanford University |
Research & Interests List
Nanophotonics
Photonic Crystals
Metamaterials
Plasmonics
Solar Cells
Top articles of Shanhui Fan
Nanophotonic Heat Exchanger for Enhanced Near-Field Radiative Heat Transfer
Increasing near-field radiative heat transfer between two bodies separated by a vacuum gap is crucial for enhancing the power density in radiative energy transport and conversion devices. However, the largest radiative heat transfer coefficient between two realistic materials at room temperature is limited to around 2000 W/(m2·K) for a gap of 100 nm. Here, analogous to conventional plate-fin heat exchangers based on convection, we introduce the concept of a nanophotonic heat exchanger, which enhances near-field radiative heat transfer using two bodies with interpenetrating gratings. Our calculations, based on rigorous fluctuational electrodynamics, show that the radiative heat transfer coefficient between the bodies separated by a 100 nm gap can significantly exceed 2000 W/(m2·K) by increasing the aspect ratios of the gratings. We develop a semianalytical heat transfer model that agrees well with the …
Authors
Yoichiro Tsurimaki,Mohammed Benzaouia,Shanhui Fan
Journal
Nano Letters
Published Date
2024/4/2
Radiative cooling textiles using industry-standard particle-free nonporous micro-structured fibers
Thermal radiation is a major dissipative pathway for heat generated by the human body and offers a significant thermoregulation mechanism over a wide range of conditions. We could use this in garment design to enhance personal cooling, which can improve the wearing comfort of garments or even result in energy savings in buildings. At present, however, radiative cooling has received insufficient attention in commercial design and production of textiles for wearable garments. Textiles that efficiently transmit the radiative heat were recently demonstrated, but either do not utilize standard weaving and knitting processes for wearable garments or require substantial process modifications. Here, we demonstrate the design and implementation of large-scale radiative cooling textiles for localized cooling management and enhanced thermal comfort using industry-standard particle-free nonporous micro-structured …
Authors
Peter B Catrysse,Shanhui Fan
Journal
Nanophotonics
Published Date
2024/1/11
Measuring, processing, and generating partially coherent light with self-configuring optics
Optical phenomena always display some degree of partial coherence between their respective degrees of freedom. Partial coherence is of particular interest in multimodal systems, where classical and quantum correlations between spatial, polarization, and spectral degrees of freedom can lead to fascinating phenomena (e.g., entanglement) and be leveraged for advanced imaging and sensing modalities (e.g., in hyperspectral, polarization, and ghost imaging). Here, we present a universal method to analyze, process, and generate spatially partially coherent light in multimode systems by using self-configuring optical networks. Our method relies on cascaded self-configuring layers whose average power outputs are sequentially optimized. Once optimized, the network separates the input light into its mutually incoherent components, which is formally equivalent to a diagonalization of the input density matrix. We illustrate our method with arrays of Mach-Zehnder interferometers and show how this method can be used to perform partially coherent environmental light sensing, generation of multimode partially coherent light with arbitrary coherency matrices, and unscrambling of quantum optical mixtures. We provide guidelines for the experimental realization of this method, paving the way for self-configuring photonic devices that can automatically learn optimal modal representations of partially coherent light fields.
Authors
Charles Roques-Carmes,Shanhui Fan,David Miller
Journal
arXiv preprint arXiv:2402.00704
Published Date
2024/2/1
Apparatuses and methods involving DC voltage conversion using photonic transformers
In certain examples, methods and semiconductor structures are directed to an apparatus including a photon emitter such as an LED which operates over an emission wavelength range and a photo-voltaic device arranged relative to the photon emitter to provide index-matched optical coupling between the photo-voltaic device and the photon emitter for an emission wavelength range of the photon emitter.
Published Date
2024/3/5
Strong coupling and single-photon nonlinearity in free-electron quantum optics
The observation that free electrons can interact coherently with quantized electromagnetic fields and matter systems has led to a plethora of proposals leveraging the unique quantum properties of free electrons. At the heart of these proposals lies the assumption of a strong quantum interaction between a flying free electron and a photonic mode. However, existing schemes are intrinsically limited by electron diffraction, which puts an upper bound on the interaction length and therefore the quantum coupling strength. Here, we propose the use of "free-electron fibers'': effectively one-dimensional photonic systems where free electrons co-propagate with two guided modes. The first mode applies a ponderomotive trap to the free electron, effectively lifting the limitations due to electron diffraction. The second mode strongly couples to the guided free electron, with an enhanced coupling that is orders of magnitude larger than previous designs. Moreover, the extended interaction lengths enabled by our scheme allows for strong single-photon nonlinearities mediated by free electrons. We predict a few interesting observable quantum effects in our system, such as deterministic single-photon emission and complex, nonlinear multimode dynamics. Our proposal paves the way towards the realization of many anticipated effects in free-electron quantum optics, such as non-Gaussian light generation, deterministic single photon emission, and quantum gates controlled by free-electron--photon interactions.
Authors
Aviv Karnieli*,Charles Roques-Carmes*,Nicholas Rivera,Shanhui Fan
Journal
arXiv preprint arXiv:2403.13071
Published Date
2024/3/19
Photonic Blockchain Based on Optical Proof-of-Work
An apparatus for combined digital and optical processing of a cryptocurrency data block includes a digital processor that computes a hash vector from the cryptocurrency data block; a laser and splitter that produces optical input signals; optical modulators that binary phase-shift key modulate the optical input signals based on the hash vector; a photonic matrix multiplier circuit that performs an optically perform a discrete matrix-vector product operation on the modulated optical input signals to produce optical output signals, where the discrete matrix-vector product operation is defined by matrix elements limited to K discrete values, where 2≤ K≤ 17; and photodetectors and comparators that perform optoelectronic conversions of the optical output signals to produce corresponding digital electronic output signals. The digital processor performs a second hash computation on an XOR result between the digital …
Published Date
2024/1/4
Structures for radiative cooling
Various aspects as described herein are directed to a radiative cooling device and method for cooling an object. As consistent with one or more embodiments, a radiative cooling device includes a solar spectrum reflecting structure configured and arranged to suppress light modes, and a thermally-emissive structure configured and arranged to facilitate thermally-generated electromagnetic emissions from the object and in mid-infrared (IR) wavelengths.
Published Date
2024/1/30
Apparatuses and methods involving thermally tuned composite material
An apparatus includes a substrate, at least one type of tuning material, and a composite material. The substrate has an interface surface or material that manifests, in response to light in a color spectrum, a particular color and a first thermal load. The particular color is associated with the first thermal load. The at least one type of tuning material manifests, in response to light in the color spectrum, the particular color and a second thermal load. The particular color is associated with the second thermal load. The first thermal load is different from the second thermal load. The composite material includes the interface surface or material and the at least one type of tuning material. The composite material manifests, in response to light in the color spectrum, the particular color and a tuned thermal load which is different than the first thermal load and the second thermal load.
Published Date
2021/1/28
Professor FAQs
What is Shanhui Fan's h-index at Stanford University?
The h-index of Shanhui Fan has been 112 since 2020 and 165 in total.
What are Shanhui Fan's top articles?
The articles with the titles of
Nanophotonic Heat Exchanger for Enhanced Near-Field Radiative Heat Transfer
Radiative cooling textiles using industry-standard particle-free nonporous micro-structured fibers
Measuring, processing, and generating partially coherent light with self-configuring optics
Apparatuses and methods involving DC voltage conversion using photonic transformers
Strong coupling and single-photon nonlinearity in free-electron quantum optics
Photonic Blockchain Based on Optical Proof-of-Work
Structures for radiative cooling
Apparatuses and methods involving thermally tuned composite material
...
are the top articles of Shanhui Fan at Stanford University.
What are Shanhui Fan's research interests?
The research interests of Shanhui Fan are: Nanophotonics, Photonic Crystals, Metamaterials, Plasmonics, Solar Cells
What is Shanhui Fan's total number of citations?
Shanhui Fan has 113,960 citations in total.
What are the co-authors of Shanhui Fan?
The co-authors of Shanhui Fan are Yi Cui, David A B Miller, Mark Brongersma, Steven Johnson, Zongfu Yu, Meng XIAO.