公开(公告)号：US09823113B2

公开(公告)日：2017-11-21

申请号：US14159649

申请日：2014-01-21

Applicant: Drexel University

Inventor： Afshin S Daryoush ,  Peter A Lewin ,  Rupa Gopinath Minasamudram ,  Mahmoud El-Sherif

IPC: G01L1/24 ,  G01H9/00 ,  G02B6/26

CPC classification number: G01H9/004 ,  G02B6/262

Abstract: Disclosed is detecting changes in pressure in a medium, with an optical fiber having a core diameter at an immersion surface contact of the fiber of less than 10 μm; a layer of material deposited on said end of the fiber, the material being of a thickness of from about 2 nm to about 10 nm. Also disclosed is detecting pressure waves in a medium comprising: contacting the medium with a fiber optic, the fiber integrated with a light source and a detector, the fiber optic having a diameter of less than 10 μm at an immersion surface contact of the fiber; providing a thin layer of material on the immersion surface contact, wherein said thin layer of material is of a thickness in a range of from about 2 nm to about 10 nm; and detecting Fresnel back reflections from the immersion end of the fiber.

公开(公告)号：US20140133280A1

公开(公告)日：2014-05-15

申请号：US14159649

申请日：2014-01-21

Applicant: Drexel University

Inventor： Afshin S. Daryoush ,  Peter A. Lewin ,  Rupa Gopinath Minasamudram ,  Mahmoud El-Sherif

IPC: G01H9/00

CPC classification number: G01H9/004 ,  G02B6/262

Abstract: Disclosed is detecting changes in pressure in a medium, with an optical fiber having a core diameter at an immersion surface contact of the fiber of less than 10 μm; a layer of material deposited on said end of the fiber, the material being of a thickness of from about 2 nm to about 10 nm. Also disclosed is detecting pressure waves in a medium comprising: contacting the medium with a fiber optic, the fiber integrated with a light source and a detector, the fiber optic having a diameter of less than 10 μm at an immersion surface contact of the fiber; providing a thin layer of material on the immersion surface contact, wherein said thin layer of material is of a thickness in a range of from about 2 nm to about 10 nm; and detecting Fresnel back reflections from the immersion end of the fiber.

Abstract translation: 本发明公开了一种介质中的压力变化，纤维的芯径在纤维的浸入面接触小于10μm的光纤; 沉积在纤维的所述端部上的材料层，该材料的厚度为约2nm至约10nm。 还公开了检测介质中的压力波，其包括：使介质与光纤接合，所述光纤与光源和检测器集成，所述光纤在纤维的浸没表面接触处具有小于10μm的直径; 在浸没表面接触处提供薄层材料，其中所述薄层材料的厚度在约2nm至约10nm的范围内; 并从纤维的浸入端检测菲涅尔反射反射。