Patents
US 12704748 B1: Reconfigurable optical device having device elements with phase change material layers and corresponding heaters connected to a circuit
- Granted
- 2026-08-11
- Filed
- 2023-11-21 application 18515295
- Type
- Utility · 25 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A reconfigurable optical device comprises a plurality of device elements that corresponds to a wavelength λ. The optical device comprises a substrate with an electrical circuit, an isolating dielectric, a field ground metal, a heater plane dielectric, a capping dielectric, and an encapsulating dielectric. Each device element comprises a resistive heater that is surrounded by the heater plane dielectric, a phase change material (PCM) layer comprising a chalcogenide-containing material, an optical antenna disposed atop the PCM layer, a capping portion of the capping dielectric above the resistive heater, and a capping metal above the capping portion and the resistive heater. The field ground metal is between each of the device elements. The encapsulating dielectric surrounds the PCM layer and the optical antenna in each of the device elements. At least three device elements in the plurality of device elements have their respective resistive heaters connected in series to the electrical circuit.
Source: PTBLXML, file of 2026-08-11 (ipgb20260811.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| HRL Laboratories, LLC 1,601 patents | US company or organization | Malibu, CA | PTBLXML, file of 2026-08-11 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jeong-Sun Moon | Moorpark, CA | 42 | PTBLXML, file of 2026-08-11 | |
| Kyung-Ah Son | Moorpark, CA | 26 | PTBLXML, file of 2026-08-11 | |
| Ryan G. Quarfoth | Woodland Hills, CA | 27 | PTBLXML, file of 2026-08-11 | |
| Hanseung Lee | Newbury Park, CA | 19 | PTBLXML, file of 2026-08-11 | |
| David H. Chow | Newbury Park, CA | 18 | PTBLXML, file of 2026-08-11 | |
| Kevin Geary | Santa Monica, CA | 21 | PTBLXML, file of 2026-08-11 | |
| Chuong V. Dao | Garden Grove, CA | PTBLXML, file of 2026-08-11 | ||
| Hwa Chang Seo | Torrance, CA | 17 | PTBLXML, file of 2026-08-11 | |
| Elias A. Flores | Ventura, CA | 3 | PTBLXML, file of 2026-08-11 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G02F | Optical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein; non-linear optics; frequency-changing of light; optical logic elements; optical analogue/digital converters | G02F1/0147 | PTBLXML, file of 2026-08-11 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-01-19 | Assignment Assignment of assignor's interest | MOON, JEONG-SUN signed 2023-11-13 SON, KYUNG-AH signed 2023-10-27 QUARFOTH, RYAN G. signed 2023-10-30 LEE, HANSEUNG signed 2023-11-01 CHOW, DAVID H. signed 2023-11-02 GEARY, KEVIN signed 2023-11-01 DAO, CHUONG V. signed 2023-11-06 SEO, HWA CHANG signed 2023-11-15 FLORES, ELIAS A. signed 2023-11-15 | HRL LABORATORIES, LLC MALIBU, CA | 66355/224 | PASDL, file of 2026-08-13 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.