Sadik C Esener

US Patent:

6396618, May 28, 2002

Filed:

Apr 11, 2000

Appl. No.:

09/547305

Inventors:

Sadik Esener - Solana Beach CA
Yossi Ronen - Herzelia, IL

Assignee:

The Regents of the University of California - Oakland CA
Creoscitex Corporation, Ltd. - Hezzlia

International Classification:

G02F 103

US Classification:

359254, 359245, 359247, 359322

Abstract:

An improved linear light modulator array is formed with opposing electrodes which extend away from the optic surfaces of optoelcctronic material used to form the array. A uniform electric field is created across a modulator volume, generally perpendicular to light propagation within the modulator volume. The modulator volume of an element in the array is a function of electrode length, width and separation. Additional elements are defined by additional pairs of electrodes. The geometry is obtained by cutting optoelectronic material into strips. Cut sides of the strips are metallized, one at a time, with the opposite side temporarily affixed to a carrier. Aligned trenches are cut in the metallized strips to separate electrode pairs and define array elements.

US Patent:

6501571, Dec 31, 2002

Filed:

Apr 11, 2000

Appl. No.:

09/547396

Inventors:

Mark Wang - San Diego CA
Sadik Esener - Solana Beach CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G03H 120

US Classification:

359 12, 359 10, 359 22, 359 24

Abstract:

A master hologram is generated in a first optical medium by use of a plurality m of different reference beams, each beam bearing information suitably recorded in one or more of a plurality n layers of the second optical medium that are distinct from layers in which information in all other beams is suitably recorded. The generated master hologram is then used to optically holographically stamp, or record, multi-layer bit-oriented optical media by writing all n layers of the volume of the blank optical medium with m recording beams produced by simultaneously illuminating the master hologram with all m different reference beams, each illuminating reference beam being at a different reference angle and from a coherent light source which is incoherent with respect to every other illuminating reference beam. By this generating and this using a high degree of incoherency is obtained, making that during subsequent readout of a selected, focused, layer of the recorded optical medium signals from all other layers will become as background noise having nearly uniform intensity. The method requires a highly non-linear optical medium: a new dye-doped photopolymer is preferred.

US Patent:

6574028, Jun 3, 2003

Filed:

Dec 28, 2001

Appl. No.:

10/034992

Inventors:

Sadik Esener - Solana Beach CA
Yossi Ronen - Herzelia, IL

Assignee:

Creo IL Ltd. - Herzlia
The Regents of the University of California - Oakland CA

International Classification:

G02F 103

US Classification:

359254, 359245

Abstract:

An improved linear light modulator array is formed with opposing electrodes which extend away from the optic surfaces of optoelectronic material used to form the array. A uniform electric field is created across a modulator volume, generally perpendicular to light propagation within the modulator volume. The modulator volume of an element in the array is a function of electrode length, width and separation. Additional elements are defined by additional pairs of electrodes. Trenches in the electrooptical material separate adjacent electrodes of separate modulator elements. A preferred depth of trench penetrates the electrooptical material about 10-15% of the distance between opposing electrodes. The geometry is obtained by cutting optoelectronic material into strips. Cut sides of the strips are metallized, one at a time, with the opposite side temporarily affixed to a carrier.

US Patent:

6605453, Aug 12, 2003

Filed:

Dec 1, 2000

Appl. No.:

09/728801

Inventors:

Mihrimah Ozkan - La Jolla CA
Sadik Esener - La Jolla CA
Sangeeta Bhatia - La Jolla CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

C12N 1300

US Classification:

4351731, 427469, 204471, 204484

Abstract:

Any of inorganic and bio-organic substances and molecules, and beads, pucks and like small things, that are both (i) electrically charged to a first polarity, and (ii) immersed in a fluid transport medium within (iii) an electrochemical cell, are assembled and patterned by action of moving these inorganic and bio-organic substances and molecules, etc. to a patterned electrode having an opposite, second, polarity under force of an applied electric field. The electrode patterned with conductive areas may be further, separately, patterned with chemicals, for example agarose gel, that chemically accept or reject the substances and molecules, etc. , especially as are biological in origin. Living cells of plant, bacterial and animal types may be assembled. A semiconductor electrode may be patterned by masked laser light passed through the other electrode, which is transparent.

US Patent:

6652808, Nov 25, 2003

Filed:

Dec 6, 1996

Appl. No.:

08/760933

Inventors:

Michael J. Heller - Encinitas CA
Jeffrey M. Cable - Temecula CA
Sadik C. Esener - Solana Beach CA

Assignee:

Nanotronics, Inc. - San Diego CA
The Regents of the University of California - Oakland CA

International Classification:

G01N 1500

US Classification:

422 681, 435 6, 435 911

Abstract:

Methods provide for electric field assisted self-assembly of functionalized programmable nucleic acids, nucleic acid modified structures, and other selective affinity or binding moieties as building blocks for: creating molecular electronic and photonic mechanisms; organization, assembly, communication and interconnection of nanostructures, submicron and micron sized components onto silicon or other materials; organization, assembly, communication and interconnection of nanostructures, submicron and micron sized components within parameters of microelectronic or optoelectronic components and devices; creating, arraying, and manufacturing photonic and electronic structures, devices, and systems. Methods for the fabrication of microscale and nanoscale devices include the steps of: releasing at least one component device from a support, transporting at least one component device to a support, and attaching at least one component device to the support. Optionally, the methods may further include the step of fabricating at least one component device on a first support.

US Patent:

6778724, Aug 17, 2004

Filed:

Nov 28, 2001

Appl. No.:

09/998012

Inventors:

Mark Wang - San Diego CA
Erhan Polatkon Ata - La Jolla CA
Sadik C. Esener - Solana Beach CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G02B 626

US Classification:

385 16, 428188, 422100

Abstract:

Small particles, for example 5 m diameter microspheres or cells, within, and moving with, a fluid, normally water, that is flowing within microfluidic channels within a radiation-transparent substrate, typically molded PDMS clear plastic, are selectively manipulated, normally by being pushed with optical pressure forces, with laser light, preferably as arises from VCSELs operating in Laguerre-Gaussian mode, at branching junctions in the microfluidic channels so as to enter into selected downstream branches, thereby realizing particle switching and sorting, including in parallel. Transport of the small particles thus transpires by microfluidics while manipulation in the manner of optical tweezers arises either from pushing due to optical scattering force, or from pulling due to an attractive optical gradient force. Whether pushed or pulled, the particles within the flowing fluid may be optically sensed, and highly-parallel, low-cost, cell- and particle-analysis devices efficiently realized, including as integrated on bio-chips.

US Patent:

7014742, Mar 21, 2006

Filed:

Mar 15, 2002

Appl. No.:

10/099133

Inventors:

Aaron L. Birkbeck - La Jolla CA, US
Sadik C. Esener - La Jolla CA, US
Mihrimah Ozkan - La Jolla CA, US
Erhan Ata - La Jolla CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G01N 27/447
G01N 27/453
G02F 1/29

US Classification:

204450, 204547, 204600, 204643, 359298, 385 4

Abstract:

An adaptive alignment technique provides precise control and active positioning in, preferably, two-dimensions of sub-millimeter-sized objects such as, in one application, spherical mircolenses through the application of electrophoretic forces in a microfluidic wells. A lithographically patterned microfluidic well and electrodes can be addressed to position or align a spherical microlens to a corresponding laser light beam. The motion of the microlens is preferably controlled using CMOS compatible voltages (3V–1 μA) that are preferably applied to opposite electrodes in the microfluidic well, creating an electrical field in a well solution. By applying voltages to opposed electrode pairs, movement of spherical microlenses with sizes ranging from, most typically, 0. 87 μm to 40 μm in directions parallel to the electrode surface is realized. Under a bias of 3 volts, the microspheres have electrophoretic velocities ranging from 13 to 16 μm/s.

US Patent:

7049579, May 23, 2006

Filed:

Jul 26, 2001

Appl. No.:

09/917139

Inventors:

Mihrimah Ozkan - Riverside CA, US
Sadik Esener - La Jolla CA, US
Mark Wang - San Diego CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

H01S 3/081

US Classification:

250251, 250216, 372 93

Abstract:

One or more microbeams derived from a corresponding number of Vertical Cavity Surface Emitting Lasers (VCSELs) are used to manipulate and to transport inorganic and organic objects. The optical tweezing apparatus and method is compact size, and suitable to manipulate multiple objects in an array concurrently, and in parallel.