A Transparent and Nonlinear Method for Variable Selection

Kavli Affiliate: Lihong Wang | First 5 Authors: Keyao Wang, Huiwen Wang, Jichang Zhao, Lihong Wang, | Summary: Variable selection is a procedure to attain the truly important predictors from inputs. Complex nonlinear dependencies and strong coupling pose great challenges for variable selection in high-dimensional data. In addition, real-world applications have increased demands for interpretability […]


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Whole-Body Human Ultrasound Tomography

Kavli Affiliate: Lihong V. Wang | First 5 Authors: David C. Garrett, Jinhua Xu, Geng Ku, Lihong V. Wang, | Summary: We developed a system for whole-body human ultrasound tomography in reflection and transmission modes. A custom 512-element ultrasound receiver array with a rotating single-element ultrasound transmitter are used to generate 2D isotropically resolved images […]


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Whole-Body Human Ultrasound Tomography

Kavli Affiliate: Lihong V. Wang | First 5 Authors: David C. Garrett, Jinhua Xu, Geng Ku, Lihong V. Wang, | Summary: We developed a system for whole-body human ultrasound tomography in reflection and transmission modes. A custom 512-element ultrasound receiver array with a rotating single-element ultrasound transmitter are used to generate 2D isotropically resolved images […]


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Whole Cross-Sectional Human Ultrasound Tomography

Kavli Affiliate: Lihong V. Wang | First 5 Authors: David C. Garrett, Jinhua Xu, Yousuf Aborahama, Geng Ku, Konstantin Maslov | Summary: Ultrasonography is a vital component of modern clinical care, with handheld probes routinely used for diagnostic imaging and procedural guidance. However, handheld ultrasound imaging is limited by factors such as the partial-cross-sectional field […]


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Interferometric speckle visibility spectroscopy (iSVS) for measuring decorrelation time and dynamics of moving samples with enhanced signal-to-noise ratio and relaxed reference requirements

Kavli Affiliate: Changhuei Yang | First 5 Authors: Yu Xi Huang, Simon Mahler, Jerome Mertz, Changhuei Yang, | Summary: Diffusing wave spectroscopy (DWS) is a group of techniques used to measure the dynamics of a scattering medium in a non-invasive manner. DWS methods rely on detecting the speckle light field from the moving scattering media […]


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Single-shot 3D photoacoustic computed tomography with a densely packed array for transcranial functional imaging

Kavli Affiliate: Lihong V. Wang | First 5 Authors: Rui Cao, Yilin Luo, Jinhua Xu, Xiaofei Luo, Ku Geng | Summary: Photoacoustic computed tomography (PACT) is emerging as a new technique for functional brain imaging, primarily due to its capabilities in label-free hemodynamic imaging. Despite its potential, the transcranial application of PACT has encountered hurdles, […]


Continue.. Single-shot 3D photoacoustic computed tomography with a densely packed array for transcranial functional imaging

Single-shot 3D photoacoustic computed tomography with a densely packed array for transcranial functional imaging

Kavli Affiliate: Lihong V. Wang | First 5 Authors: Rui Cao, Yilin Luo, Jinhua Xu, Xiaofei Luo, Ku Geng | Summary: Photoacoustic computed tomography (PACT) is emerging as a new technique for functional brain imaging, primarily due to its capabilities in label-free hemodynamic imaging. Despite its potential, the transcranial application of PACT has encountered hurdles, […]


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Brain Anatomy Prior Modeling to Forecast Clinical Progression of Cognitive Impairment with Structural MRI

Kavli Affiliate: Lihong Wang | First 5 Authors: Lintao Zhang, Jinjian Wu, Lihong Wang, Li Wang, David C. Steffens | Summary: Brain structural MRI has been widely used to assess the future progression of cognitive impairment (CI). Previous learning-based studies usually suffer from the issue of small-sized labeled training data, while there exist a huge […]


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High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator

Kavli Affiliate: Kerry J. Vahala | First 5 Authors: Bohan Li, Zhiquan Yuan, Warren Jin, Lue Wu, Joel Guo | Summary: By self-injection-locking a 1560 nm distributed feedback semiconductor laser to a high-$Q$ silicon nitride resonator, a high-coherence 780 nm second harmonic signal is generated via the photogalvanic-induced second-order nonlinearity. A record-low frequency noise floor […]


Continue.. High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator

High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator

Kavli Affiliate: Kerry J. Vahala | First 5 Authors: Bohan Li, Zhiquan Yuan, Warren Jin, Lue Wu, Joel Guo | Summary: By self-injection-locking a 1560 nm distributed feedback semiconductor laser to a high-$Q$ silicon nitride resonator, a high-coherence 780 nm second harmonic signal is generated via the photogalvanic-induced second-order nonlinearity. A record-low frequency noise floor […]


Continue.. High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator