Widely-tunable optical parametric oscillator in lithium niobate nanophotonics

Posted by Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: Luis Ledezma, Arkadev Roy, Luis Costa, Ryoto Sekine, Robert Gray | Summary: Widely-tunable coherent sources in nanophotonics are desirable for a multitude of applications ranging from communications to sensing. The mid-infrared spectral region (wavelengths beyond 2 $mu$m) is particularly important for applications relying on molecular spectroscopy. Among […]


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Octave-spanning tunable parametric oscillation in nanophotonics

Posted by Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: Luis Ledezma, Arkadev Roy, Luis Costa, Ryoto Sekine, Robert Gray | Summary: Widely-tunable coherent sources are desirable in nanophotonics for a multitude of applications ranging from communications to sensing. The mid-infrared spectral region (wavelengths beyond 2 $mu$m) is particularly important for applications relying on molecular spectroscopy. Among […]


Continue.. Octave-spanning tunable parametric oscillation in nanophotonics

Multi-Modal Learning for AU Detection Based on Multi-Head Fused Transformers

Posted by klaurent Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Lijun Yin, , , | Summary: Multi-modal learning has been intensified in recent years, especially for applications in facial analysis and action unit detection whilst there still exist two main challenges in terms of 1) relevant feature learning for representation and 2) efficient fusion for […]


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X-ray Nano-imaging of Defects in Thin Film Catalysts via Cluster Analysis

Posted by klaurent Cornell

Kavli Affiliate: Darrell G. Schlom, Jin Suntivich | First 5 Authors: Aileen Luo, Oleg Yu. Gorobtsov, Jocienne N. Nelson, Ding-Yuan Kuo, Ziming Shao | Summary: Functional properties of transition-metal oxides strongly depend on crystallographic defects. In transition-metal-oxide electrocatalysts such as SrIrO3 (SIO), crystallographic lattice deviations can affect ionic diffusion and adsorbate binding energies. Scanning x-ray […]


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X-ray Nano-imaging of Defects in Thin Film Catalysts via Cluster Analysis

Posted by klaurent Cornell

Kavli Affiliate: Jin Suntivich | First 5 Authors: Aileen Luo, Oleg Yu. Gorobtsov, Jocienne N. Nelson, Ding-Yuan Kuo, Ziming Shao | Summary: Functional properties of transition-metal oxides strongly depend on crystallographic defects. In transition-metal-oxide electrocatalysts such as SrIrO3 (SIO), crystallographic lattice deviations can affect ionic diffusion and adsorbate binding energies. Scanning x-ray nanodiffraction enables imaging […]


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DePS: An improved deep learning model for de novo peptide sequencing

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Cheng Ge, Yi Lu, Jia Qu, Liangxu Xie, Feng Wang | Summary: De novo peptide sequencing from mass spectrometry data is an important method for protein identification. Recently, various deep learning approaches were applied for de novo peptide sequencing and DeepNovoV2 is one of the represetative models. […]


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A portable sub Hertz ultra-stable laser over 1700km highway transportation

Posted by klaurent Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Dongdong Jiao, Guanjun Xu, Jing Gao, Xue Deng, Qi Zang | Summary: We present a subHz linewidth portable ultrastable laser with the mass and volume of are 40kg and 400mm*280mm*450mm, respectively, that meets the requirements of automatic frequency locking and road transportation. A dynamic analytical model of […]


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A second-generation range-separated hybrid van der Waals density functional

Posted by klaurent Berkeley

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Vivekanand Shukla, Yang Jiao, Jung-Hoon Lee, Elsebeth Schroder, Jeffrey B. Neaton | Summary: We define, test, and illustrate use of a range-separated (screened) hybrid, termed vdW-DF2-ahbr and abbreviated AHBR, that uses the second-generation nonlocal-correlation formulation [PRB {bf 82}, 081101(R) (2010)] within the van der Waals density […]


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Accurate non-empirical range-separated hybrid van der Waals density functional for complex molecular problems, solids, and surfaces

Posted by klaurent Berkeley

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Vivekanand Shukla, Yang Jiao, Jung-Hoon Lee, Elsebeth Schroder, Jeffrey B. Neaton | Summary: We introduce a new, general-purpose, range-separated hybrid van der Waals density ph{functional, termed vdW-DF-ahbr,} within the non-empirical vdW-DF method [JPCM 32, 393001 (2020)]. It combines correlation from vdW-DF2 with a screened Fock exchange […]


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Nonreciprocal Infrared Absorption via Resonant Magneto-optical Coupling to InAs

Posted by klaurent Caltech

Kavli Affiliate: Harry Atwater | First 5 Authors: Komron Shayegan, Bo Zhao, Yonghwi Kim, Shanhui Fan, Harry Atwater | Summary: Nonreciprocal elements are a vital building block of electrical and optical systems. In the infrared regime, there is a particular interest in structures that break reciprocity because their thermal absorptive (and emissive) properties should not […]


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