Leland Stanford Junior University

Optical Biopsy Technologies, Inc.

Other

USA As Represented by Secretary of the Navy

Terastor Corporation

Olympus Optical Company, Ltd.

Optreal Biopsy Technologies, Inc.

Opeical Biopsy Technologies, Inc.

Michel J.f. Digonnet

Jonghwa Shin

Shanhui Fan

Vinayak Dangui

Gordon S. Kino

Hyang Kyun Kim

Gordon S Kino

Michel J F Digonnet

Olav Solgaard

Aydogan Ozcan

Onur Kilic

Michael J Mandella

Mark H Garrett

David L Dickensheets

Onur Can Akkaya

Butrus Thomas Khuri-Yakub

Pavel Neuzil

William P Risk

John E Bowers

Hee Gap Park

Shrestha Basu Mallick

Scott M Mansfield

Timothy R Corle

Stanley S Chim

Calvin F Quate

Michel J Digonnet

H John Shaw

Seth Lloyd

Michel Jf Digonnet

Daniel A Fletcher

Simon D Bennett

Alice Liu

Stéphane Blin

Roger A Hajjar

Herbert J Shaw

Paul Douglas Corl

Richard G Stearns

Christopher H Contag

Mitsunori Kubo

Ning Yeung Chan

Ilya M Fishman

Robert C Youngquist

Hyongsok T Soh

Benjamin J Vakoc

James F Havlice

Omer Oralkan

Akiko Murata

Jae Eun Hwang

Silviu Savin

Peter J Fitzgerald

Hyejun Ra

Michael J F Digonnet

Asif A Godil

Peter M Grant

Didier Husson

Kenneth K Liang

Roger L Jungerman

Brian L Heffner

Jae-Woong Jeong

Kenneth B Cozier

Paul Cristman

Jonathan T C Liu

Guoqing Xiao

Patricia A Beck

Goging Xiao

Guo Q Xiao

David B Patterson

Michial D Howell

Matthew L Kolz

Jonathan B Green

Hermund Olaisen

David Behar

Michel JF Digonnet

Ozcan Aydogan

Michael JF Digonnet

Michel F Digonnet

Aspects of the present invention are directed to apparatuses, arrangements, systems and methods for collecting information using one or more modalities. As consistent with one or more embodiments, an apparatus includes first and second scanning mirror arrangements having different scanning axes and respectively facing different directions. The first scanning mirror arrangement directs source light and image light in two paths, and the second scanning mirror arrangement directs image light from a target to the first scanning mirror arrangement. The first and second scanning mirror arrangements cooperatively scan source light from the first scanning mirror and via the second scanning mirror to target locations with at least two degrees of freedom, and direct image light from the target locations.

Confocal microscope, system and method therefor

A sensor is provided, with the sensor including a reflective element and an optical fiber positioned relative to the reflective element such that light emitted from the optical fiber is reflected by the reflective element and propagates in an optical cavity between the optical fiber and the reflective element. A first material is within the optical cavity and has a coefficient of thermal expansion and a thickness that compensate a refractive index change with temperature of a second material within the optical cavity.

Optical-fiber-compatible sensor

Optical apparatus and methods utilizing sensors operating in the reflection mode are provided. The apparatus includes at least one optical bus. The at least one optical bus is configured to be optically coupled to at least one source of input optical signals, to at least one optical detector, and to a plurality of reflective sensing elements. The at least one optical bus transmits an input optical signal from the at least one source to the plurality of reflective sensing elements. At least one reflective sensing element of the plurality of reflective sensing elements receives a portion of the input optical signal and reflects at least a portion of the received portion. The at least one optical bus transmits the reflected portion to the at least one optical detector.

Apparatus and methods utilizing optical sensors operating in the reflection mode

A method utilizes an optical image processing system. The method includes calculating a product of (i) a measured magnitude of a Fourier transform of a complex transmission function of an object or optical image and (ii) an estimated phase term of the Fourier transform of the complex transmission function. The method further includes calculating an inverse Fourier transform of the product, wherein the inverse Fourier transform is a spatial function. The method further includes calculating an estimated complex transmission function by applying at least one constraint to the inverse Fourier transform.

Optical image processing using maximum or minimum phase functions

A method for fabricating a sensor is provided, with the sensor including a reflective element and an optical fiber positioned relative to the reflective element such that light emitted from the optical fiber is reflected by the reflective element and propagates in an optical cavity between the optical fiber and the reflective element. The method includes positioning an element within the optical cavity. The element has a coefficient of thermal expansion and a thickness that compensate a refractive index change with temperature of a medium within the optical cavity.

Method of fabricating an optical-fiber-compatible sensor

A gyroscope and a method of detecting rotation are provided. The gyroscope includes a structure configured to be driven to move about a drive axis. The structure is further configured to move about a sense axis in response to a Coriolis force generated by rotation of the structure about a rotational axis while moving about the drive axis. The structure further includes at least one first torsional spring extending generally along the drive axis and at least one second torsional spring extending generally along the sense axis. The gyroscope further includes an optical sensor system configured to optically measure movement of the structure about the sense axis.

Gyroscope utilizing torsional springs and optical sensing

An apparatus and method process optical coherence tomography (OCT) imaging data from a sample. The method includes using a magnitude spectrum and an estimated phase term of a complex spatial Fourier transform of a complex intermediate function to generate an estimated complex spatial Fourier transform. The method further includes calculating an inverse Fourier transform of the estimated complex spatial Fourier transform and calculating an estimated intermediate function by applying at least one constraint to the inverse Fourier transform. The apparatus includes a partially reflective element configured to reflect a first portion of light and to allow a second portion of light to propagate through the partially reflective element and to reflect from the sample. The apparatus further includes a detector that measures the OCT power spectrum in response to the first and second portions of light.

Apparatus and method for processing optical coherence tomography imaging data

An optical structure includes an optical waveguide and at least one photonic crystal structure. The optical structure also includes a structural portion mechanically coupled to the optical waveguide and the at least one photonic crystal structure such that a region substantially bounded by the structural portion, the optical waveguide, and the at least one photonic crystal structure has a specified volume.

Optical system having a photonic crystal structure and method of fabrication

An acoustic sensor includes a diaphragm having a reflective element. The sensor has an optical fiber positioned relative to the reflective element such that light emitted from the optical fiber is reflected by the reflective element. A first end of the optical fiber and the reflective element form an optical cavity therebetween. The acoustic sensor further includes a structural element mechanically coupled to the diaphragm and the optical fiber. The structural element includes a material having a coefficient of thermal expansion substantially similar to the coefficient of thermal expansion of the optical fiber. For example, the material can be silica.

Optical-fiber-compatible acoustic sensor

A method detects an acceleration. The method includes providing a spatial mode filter positioned such that light emitted from the spatial mode filter is reflected by at least a portion of a reflective surface. The spatial mode filter and the portion of the reflective surface form an optical resonator having an optical resonance with a resonance lineshape. The method further includes emitting light from the spatial mode filter and irradiating the portion of the reflective surface. The portion of the reflective surface is responsive to acceleration of the optical resonator by changing curvature. The method further includes measuring a change of the resonance lineshape due to the acceleration of the optical resonator.

Method of detecting an acceleration

An optical fiber includes a cladding with a material having a first refractive index and a pattern of regions formed therein. Each of the regions has a second refractive index lower than the first refractive index. The optical fiber further includes a core region and a core ring having an inner perimeter, an outer perimeter, and a thickness between the inner perimeter and the outer perimeter. The thickness is sized to reduce the number of ring surface modes supported by the core ring.

Optical fiber

A method and apparatus models one or more electromagnetic field modes of a waveguide. The method includes calculating a first matrix having a plurality of elements and having a first bandwidth using a refractive index profile of the waveguide. The plurality of elements of the first matrix represents an action of Maxwell's equations on a transverse magnetic field within the waveguide. The method further includes rearranging the plurality of elements of the first matrix to form a second matrix having a second bandwidth smaller than the first bandwidth. The method further includes shifting the second matrix and inverting the shifted second matrix to form a third matrix. The method further includes calculating one or more eigenvalues or eigenvectors of the third matrix corresponding to one or more modes of the waveguide.

Method and apparatus for modeling the modal properties of optical waveguides

An optical fiber includes a cladding, a first core, and a second core. At least one of the first core and the second core is hollow and is substantially surrounded by the cladding. At least a portion of the first core is generally parallel to and spaced from at least a portion of the second core. The optical fiber includes a defect substantially surrounded by the cladding, the defect increasing a coupling coefficient between the first core and the second core.

Multiple-core optical fiber with coupling between the cores

A method detects a topology of a reflective surface. The method includes providing an optical fiber positioned such that light emitted from the optical fiber is reflected by at least a portion of the reflective surface. The optical fiber and the portion of the reflective surface form an optical resonator having an optical resonance with a resonance lineshape. The method further includes emitting light from the optical fiber while the optical fiber is at a plurality of positions along the reflective surface. The light emitted from the optical fiber irradiates a corresponding plurality of portions of the reflective surface. The method further includes measuring a change of the resonance lineshape due to the irradiation of the plurality of portions of the reflective surface.

Method of detecting a topology of a reflective surface

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Stanford, CA, United States of America

Gordon S Kino