Kavli Affiliate: James J. Bock | First 5 Authors: Richard M. Feder, Daniel C. Masters, Bomee Lee, James J. Bock, Yi-Kuan Chiang | Summary: We simulate galaxy properties and redshift estimation for SPHEREx, the next NASA Medium Class Explorer. To make robust models of the galaxy population and test spectro-photometric redshift performance for SPHEREx, we […]
Kavli Affiliate: Rana X. Adhikari | First 5 Authors: Mario Krenn, Yehonathan Drori, Rana X Adhikari, , | Summary: Gravitational waves, detected a century after they were first theorized, are spacetime distortions caused by some of the most cataclysmic events in the universe, including black hole mergers and supernovae. The successful detection of these waves […]
Kavli Affiliate: Oskar Painter | First 5 Authors: Utku Hatipoglu, Sameer Sonar, David P. Lake, Srujan Meesala, Oskar Painter | Summary: Optomechanical crystals are a promising device platform for quantum transduction and sensing. Precise targeting of the optical and acoustic resonance frequencies of these devices is crucial for future advances on these fronts. However, fabrication […]
Kavli Affiliate: James Bock | First 5 Authors: Samuel S. Condon, Stephen Padin, James Bock, Howard Hui, Phillip Korngut | Summary: We describe a technique for measuring focus errors in a cryogenic, wide-field, near-infrared space telescope. The measurements are made with a collimator looking through a large vacuum window, with a reflective cold filter to […]
Kavli Affiliate: Wei Gao | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Occlusions between consecutive frames have long posed a significant challenge in optical flow estimation. The inherent ambiguity introduced by occlusions directly violates the brightness constancy constraint and considerably hinders pixel-to-pixel matching. To address this issue, multi-frame optical flow methods leverage […]
Kavli Affiliate: Wei Gao | First 5 Authors: , , , , | Summary: Large-scale image-language pretrained models, e.g., CLIP, have demonstrated remarkable proficiency in acquiring general multi-modal knowledge through web-scale image-text data. Despite the impressive performance of image-language models on various image tasks, how to effectively expand them on general video understanding remains an […]
Kavli Affiliate: Alireza Marandi | First 5 Authors: Ryotatsu Yanagimoto, Edwin Ng, Marc Jankowski, Rajveer Nehra, Timothy P. McKenna | Summary: Over the last few decades, nonlinear optics has become significantly more nonlinear, traversing nearly a billionfold improvement in energy efficiency, with ultrafast nonlinear nanophotonics in particular emerging as a frontier for combining both spatial […]
Kavli Affiliate: Harry A. Atwater | First 5 Authors: Claudio U. Hail, Lior Michaeli, Harry A. Atwater, , | Summary: High quality factor optical nanostructures provide great opportunity to enhance nonlinear optical processes such as third harmonic generation. However, the field enhancement in these high quality factor structures is typically accompanied by optical mode nonlocality. […]
Kavli Affiliate: Morteza Gharib | First 5 Authors: Eric Sihite, Alireza Ramezani, Morteza Gharib, , | Summary: Robot designs can take many inspirations from nature, where there are many examples of highly resilient and fault-tolerant locomotion strategies to navigate complex terrains by using multi-functional appendages. For example, Chukar and Hoatzin birds can repurpose their wings […]
Kavli Affiliate: Wei Gao | First 5 Authors: Yifan Li, Feng Shu, Jun Zou, Wei Gao, Yaoliang Song | Summary: To satisfy the high-resolution requirements of direction-of-arrival (DOA) estimation, conventional deep neural network (DNN)-based methods using grid idea need to significantly increase the number of output classifications and also produce a huge high model complexity. […]