公开(公告)号：WO2022178328A1

公开(公告)日：2022-08-25

申请号：PCT/US2022/017103

申请日：2022-02-18

Applicant: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE

Inventor： PIESTUN, Rafael ,  SINGH, Sakshi ,  LABOUESSE, Simon

IPC: G01F23/284 ,  G01F23/292 ,  G01R27/06 ,  G01S17/89 ,  G06T5/00 ,  H01Q15/00

Abstract: Technology is disclosed herein that enhances imaging, sensing, and property detection of objects. In an implementation, a wave radiation source transmits waves through a complex medium towards an object. The complex medium may be engineered or naturally occurring. Wave modulators modulate the waves transmitted through the complex medium. The wave modulators may comprise spatial or temporal modulators. Secondary waves propagate back though the complex medium in response interaction between the waves and the object. Detectors detect wave properties from the secondary waves. A digital processor reconstructs data based on the secondary wave properties.

公开(公告)号：WO2021067515A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/053656

申请日：2020-09-30

Applicant: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE

Inventor： PIESTUN, Rafael ,  IRSCH, Kristina ,  LABOUESSE, Simon ,  GIGAN, Sylvain

IPC: A61B3/12 ,  G02B27/48

Abstract: Systems and methods are provided for imaging and characterizing objects including the eye using non-uniform or speckle illumination patterns. According to the present technology, a method for characterizing at least a portion of an object may include generating, using at least one light source, one or multiple non-uniform illumination patterns on an object. The method may also include detecting, using a detector, backscattered light from the object in response to the generating. The method may further include extracting, using the detector, data representative of the backscattered light. The method may also include processing, using a processing unit, the data representative of the backscattered light to create one or more images of at least a portion of the object.

公开(公告)号：WO2019227101A1

公开(公告)日：2019-11-28

申请号：PCT/US2019/034200

申请日：2019-05-28

Applicant: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE

Inventor： PIESTUN, Rafael ,  LABOUESSE, Simon ,  RASCHKE, Markus B. ,  MULLER, Eric ,  JOHNSON, Samuel

IPC: G01Q20/00

Abstract: Infrared (IR) vibrational scattering scanning near-field optical microscopy (s-SNOM) has advanced to become a powerful nanoimaging and spectroscopy technique with applications ranging from biological to quantum materials. However, full spatiospectral s-SNOM continues to be challenged by long measurement times and drift during the acquisition of large associated datasets. Various embodiments provide for a novel approach of computational spatiospectral s-SNOM by transforming the basis from the stationary frame into the rotating frame of the IR carrier frequency. Some embodiments see acceleration of IR s-SNOM data collection by a factor of 10 or more in combination with prior knowledge of the electronic or vibrational resonances to be probed, the IR source excitation spectrum, and other general sample characteristics.