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Background X-ray free-electron lasers (XFELs) produce x-ray pulses with durations shorter than 100 femtoseconds. Each pulse contains enough photons to produce a diffraction pattern from a nanocrystal in a single shot, while avoiding most effects of radiation damage. XFELs are increasing in prevalence in a range of applications due to their capacity...

Published: 7/11/2025 | Inventor(s): Samuel Teitelbaum

Keywords(s):

Category(s): Physical Science, Energy & Power, Applied Technologies, Physics

Acoustic-Enabled Aerosol Separator

Background The chemical composition of aerosol particles provides key insights into the study of the behavior of planetary atmospheres. Measuring aerosol composition typically involves separating the aerosols from the carrier atmospheric gases, which can be challenging. Current methods for aerosol mass spectrometry (AMS) are well-established in the...

Published: 6/3/2025 | Inventor(s): Tyler Ray

Keywords(s):

Category(s): Physical Science, Physics, Environmental, Chemical/Biological Sensors

Recovering Implicit Physics Model under Real World Constraints

Background Model recovery involves learning the underlying physics-driven governing equations of a system from data. The goals of model recovery include accurately reconstructing the data, and deriving the fewest terms required to represent the underlying non-linear dynamics. Current methods of model recovery involve significant performance degradation...

Published: 4/28/2025 | Inventor(s): Ayan Banerjee, Sandeep Gupta

Keywords(s):

Category(s): Physical Science, Physics, Artificial Intelligence/Machine Learning

Model Recovery from Real World Data

Background Model recovery involves extracting coefficients of governing equations of a system from input output traces. The goals of model recovery include accurately reconstructing the input output traces, and reducing error in model coefficient estimation. Current methods of model recovery involve significant performance degradation on the data from...

Published: 4/28/2025 | Inventor(s): Ayan Banerjee, Sandeep Gupta

Keywords(s):

Category(s): Physical Science, Artificial Intelligence/Machine Learning, Physics

Phase Noise Cancelling Phase Noise Loop (PLL)

Background Electronic devices that use clocks (e.g., smartphones, cars, GPS) require stability of timing reference signals. For wireless and wireline communications applications, short-term clock stability is an important factor, and long-term stability is less of a concern due to periodic synchronizations between the radio nodes. Short-term clock...

Published: 2/13/2025 | Inventor(s): Saeed Zeinolabedinzadeh, Waleed Ahmad

Keywords(s):

Category(s): Physics, Semiconductor Devices, Physical Science, Applied Technologies, Wireless & Networking

Scalable Design and Manufacturing of Functional Metastructures and Metamaterials

Background Ultrathin photonic nanostructures, such as plasmonic and dielectric metamaterials and metasurfaces, have broad applications in electromagnetic wave manipulation, high resolution imaging, and computation. However, conventional production of these metastructures relies on precise nano-machining techniques that are difficult to manufacture...

Published: 2/13/2025 | Inventor(s): Chao Wang, Yu Yao, Shinhyuk Choi, Jiawei Zuo

Keywords(s):

Category(s): Advanced Materials/Nanotechnology, Imaging, Physical Science, Physics, Energy & Power

Electro-Thermo-Mechanical Characterization of Microscale Ti-6Al-4V Wires using an Innovative Experimental Method

Background Effective metal forming in the manufacture of commercial products requires that material properties after forming must be maintained or improved, and the metal forming steps must be cost-effective. Achieving both of these conditions is challenging because there is a trade-off between material performance and processing cost. Many current...

Published: 2/13/2025 | Inventor(s): Wonjune Choi, Maxwell Kulak, Wonmo Kang

Keywords(s): Materials and Electronics

Category(s): Physical Science, Manufacturing/Construction/Mechanical, Physics

Ultrafast Optical Modulation and Ultra-Short Pulse Generation Based on Tunable Graphene-Plasmonic Hybrid Metasurfaces

Background Generation of ultra-short pulses is in demand for a variety of applications ranging from telecommunication and optical computing to ultrafast science and high-resolution spectroscopy. In spite of the relative maturity of ultra-short pulse generation in the visible and near-infrared regions of the electromagnetic (EM) spectrum, there remains...

Published: 2/13/2025 | Inventor(s): Yu Yao, Ali Basiri

Keywords(s):

Category(s): Advanced Materials/Nanotechnology, Physical Science, Medical Imaging, Imaging, Physics

Highly Efficient Chiral Plasmonic Metasurfaces for Mid-Infrared Polarization Filtering and Detection

Background Polarization detection and manipulation techniques have wide-ranging applications, from glare-reducing glasses, liquid-crystal displays and 3D movies to optical communication, spectrometry, hologram generation, biomedical diagnosis, chemical analysis, and target detection. Conventional methods for polarization detection and manipulation...

Published: 2/13/2025 | Inventor(s): Yu Yao, Jing Bai

Keywords(s):

Category(s): Physical Science, Imaging, Advanced Materials/Nanotechnology, Physics, Medical Imaging, Chemical/Biological Sensors, Semiconductors, Materials & Processes, Semiconductor Devices

MIRSIL

MIRSIL™ (MID INFRARED SILICON) A DISRUPTIVE BAND-EDGE MODIFIED BULK SILICON TECHNOLOGY FOR MID INFRARED (2-5.5µm) DETECTION AND IMAGING SUMMARY The new MIRSIL™ rare-earth enhanced silicon detector is a proven breakthrough in the detection of mid infrared light, initially in the 2-5.5µm range, with the possibility of detection...

Published: 8/19/2020 | Inventor(s):

Keywords(s):

Category(s): Computing, Electronics, Diagnostics, Chemistry, Physics, Engineering, Energy

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