MuA-Ori: Multimodal Actuated Origami

Kavli Affiliate: Katia Bertoldi | First 5 Authors: Antonio Elia Forte, David Melancon, Leon M. Kamp, Benjamin Gorissen, Katia Bertoldi | Summary: Recently, inflatable elements integrated in robotics systems have enabled complex motions as a result of simple inputs. However, these fluidic actuators typically exhibit unimodal deformation upon inflation. Here, we present a new design […]


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Nonlinear noise regression in gravitational-wave detectors with convolutional neural networks

Kavli Affiliate: Rana X. Adhikari | First 5 Authors: Hang Yu, Rana X. Adhikari, , , | Summary: Currently, the sub-60 Hz sensitivity of gravitational-wave (GW) detectors like Advanced LIGO is limited by the control noises from auxiliary degrees of freedom, which nonlinearly couple to the main GW readout. One particularly promising way to tackle […]


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Scalable synthesis of 2D van der Waals superlattices

Kavli Affiliate: Xiang Zhang | First 5 Authors: Michael J. Motala, Xiang Zhang, Pawan Kumar, Eliezer F. Oliveira, Anna Benton | Summary: Heterostructure materials form the basis of much of modern electronics, from transistors to lasers and light-emitting diodes. Recent years have seen a renewed focus on creating heterostructures through the vertical integration of two-dimensional […]


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Identifying drivers of energy resolution variation in multi-KID phonon-mediated detectors

Kavli Affiliate: Sunil Golwala | First 5 Authors: Karthik Ramanathan, Taylor Aralis, Ritoban Basu Thakur, Bruce Bumble, Yen-Yung Chang | Summary: Phonon-mediated particle detectors employing Kinetic Inductance Detectors (KIDs) on Silicon substrates have demonstrated both O(10) eV energy resolution and mm position resolution, making them strong candidates for instrumenting next generation rare-event experiments such as […]


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Safe Online Gain Optimization for Variable Impedance Control

Kavli Affiliate: Xiang Zhang | First 5 Authors: Changhao Wang, Zhian Kuang, Xiang Zhang, Masayoshi Tomizuka, | Summary: Smooth behaviors are preferable for many contact-rich manipulation tasks. Impedance control arises as an effective way to regulate robot movements by mimicking a mass-spring-damping system. Consequently, the robot behavior can be determined by the impedance gains. However, […]


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Probing material absorption and optical nonlinearity of integrated photonic materials

Kavli Affiliate: Kerry J. Vahala | First 5 Authors: Maodong Gao, Qi-Fan Yang, Qing-Xin Ji, Heming Wang, Lue Wu | Summary: Optical microresonators with high quality ($Q$) factors are essential to a wide range of integrated photonic devices. Steady efforts have been directed towards increasing microresonator $Q$ factors across a variety of platforms. With success […]


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Frequency conversion of abruptly autofocusing waves

Kavli Affiliate: Wei Gao | First 5 Authors: Wei Gao, Dong-Mei Wang, Hai-Jun Wu, Dong-Sheng Ding, Carmelo Rosales-Guzmán | Summary: Abruptly autofocusing waves and associated ring-Airy (RA) beams are attracting increasing interest owing to their advantages in focusing abruptness and small F-number. Optical frequency conversion via parametric interactions can further expand their application areas, yet […]


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Probing Hot Gas Components of Circumgalactic Medium in Cosmological Simulations with the Thermal Sunyaev-Zel’dovich Effect

Kavli Affiliate: Sunil Golwala | First 5 Authors: Junhan Kim, Sunil Golwala, James G. Bartlett, Stefania Amodeo, Nicholas Battaglia | Summary: The thermal Sunyaev-Zel’dovich (tSZ) effect is a powerful tool with the potential for constraining directly the properties of the hot gas that dominates dark matter halos because it measures pressure and thus thermal energy […]


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Epitaxial Sc$_x$Al$_{1-x}$N on GaN is a High K Dielectric

Kavli Affiliate: Grace Xing | First 5 Authors: Joseph Casamento, Hyunjea Lee, Takuya Maeda, Ved Gund, Kazuki Nomoto | Summary: Epitaxial Sc$_x$Al$_{1-x}$N thin films of ~100 nm thickness grown on metal polar GaN exhibit significantly enhanced relative dielectric permittivity ($epsilon_r$) values relative to AlN. $epsilon_r$ values of ~17 to 21 for Sc contents of 17 […]


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Global optimization of multilayer dielectric coatings for precision measurements

Kavli Affiliate: Rana X. Adhikari | First 5 Authors: Gautam Venugopalan, Koji Arai, Rana X Adhikari, , | Summary: We describe the design of optimized multilayer dielectric coatings for precision laser interferometry. By setting up an appropriate cost function and then using a global optimizer to find a minimum in the parameter space, we were […]


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