Thanh V Le

US Patent:

8111402, Feb 7, 2012

Filed:

Apr 3, 2009

Appl. No.:

12/418525

Inventors:

Thanh M. Le - Duarte CA, US
Nan Yu - Arcadia CA, US
Anatoliy Savchenkov - Glendale CA, US
William H. Steier - San Marino CA, US

Assignee:

OEwaves, Inc. - Pasadena CA
California Institute of Technology - Pasadena CA
University of Southern California - Los Angeles CA

International Classification:

G01B 9/02

US Classification:

356491, 356480

Abstract:

Techniques and devices based on transverse magnetic (TM) and transverse electric (TE) modes in an optical resonator or interferometer to provide sensitive optical detection with insensitivity to a change in temperature. A shift in a difference between a first resonance wavelength of a TE optical mode and a second resonance wavelength of a TM optical mode is measured to measure a change in a sample that is in optical interaction with the optical resonator or interferometer. For example, the detected shift can be used to measure a change in a refractive index of the sample.

US Patent:

8124927, Feb 28, 2012

Filed:

May 29, 2007

Appl. No.:

11/754959

Inventors:

Anatoliy Savchenkov - La Crescenta CA, US
Makan Mohageg - Valley Village CA, US
Thanh M. Le - Duarte CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

G02B 6/26
G02B 6/42
G02F 1/035

US Classification:

25022724, 385 30

Abstract:

An optical device including a whispering gallery mode (WGM) optical resonator configured to support one or more whispering gallery modes; and a photodetector optically coupled to an exterior surface of the optical resonator to receive evanescent light from the optical resonator to detect light inside the optical resonator.

US Patent:

20200214840, Jul 9, 2020

Filed:

Mar 16, 2020

Appl. No.:

16/820499

Inventors:

- Irvine CA, US
Tung T. Le - Costa Mesa CA, US
Thanh Huy Le - Oceanside CA, US
Brian C. Gray - Trabuco Canyon CA, US
Alejandro J. Froimovich Rosenberg - Sherman Oaks CA, US
Jeff Lindstrom - Coto de Caza CA, US
Kim D. Nguyen - Irvine CA, US
Sonny Tran - Westminster CA, US

International Classification:

A61F 2/24

Abstract:

A delivery apparatus for implanting a radially compressible and expandable prosthetic heart valve in a native heart valve of the heart includes a handle portion and an elongated shaft extending from and movable relative to the handle portion. The shaft includes a proximal end portion coupled to the handle portion and a distal end portion configured to mount a prosthetic heart valve in a radially compressed state. The handle portion includes a control member movable longitudinally with respect to the handle portion, the control member engaging a gear assembly operable to convert longitudinal motion of the control member to rotational motion of the gear assembly. The gear assembly engages the elongated shaft such that rotational motion of the gear assembly causes corresponding longitudinal motion of the elongated shaft relative to the handle portion.