IP Library Granted Patent US 12,117,588
Granted Patent B2
US 12,117,588 · App. 17/561,627 · Granted Oct 15, 2024

System and method for using mechanical loading to create spatially patterned meta surfaces for optical components

Inventors: Nathan James Ray (Tracy, CA); Eyal Feigenbaum (Livermore, CA)
Assignee: Lawrence Livermore National Security, LLC
G02B1/002B82Y20/00B82Y40/00
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Quick Facts
Patent No.
US 12,117,588
App. No.
17/561,627
Granted
Oct 15, 2024
Kind
B2
Abstract

The present disclosure relates to a system for producing a patterned nanostructured surface on a component from a pre-existing, nanostructured surface with a first spatial feature distribution on the component. The system makes use of a force application element configured to apply a force to the pre-existing, nanostructured surface, and a force application control subsystem. The force application control subsystem is configured to control elevational movement of the force application element along a first axis of movement into and out of contact with the pre-existing, nanostructured surface to apply a predetermined load to the pre-existing, nanostructured surface. The predetermined load is sufficient to modify the pre-existing, non-patterned nanostructured surface to create the patterned nanostructured surface.

Claims (28)

1. A system for producing a patterned nanostructured surface on a component from a pre-existing, nanostructured surface with a first spatial feature distribution on the component, the system comprising:

a force application element configured to apply a force to the pre-existing, nanostructured surface with the first spatial feature distribution; and

a force application control subsystem configured to control elevational movement of the force application element along a first axis of movement into and out of contact with the pre-existing, nanostructured surface with the first spatial feature distribution to apply a predetermined load to the pre-existing, nanostructured surface with the first spatial feature distribution sufficient to modify the pre-existing nanostructured surface to create the patterned nanostructured surface.

2. The system of claim 1 , wherein the force application control subsystem controls the force application element to create the patterned nanostructured surface as a spatially patterned nanostructured surface.

3. The system of claim 1 , further comprising a position control subsystem for moving the force application element in at least one of X and Y axes orthogonal to the first axis of movement of the force application element.

4. The system of claim 1 , wherein the force application element comprises a template having a surface shaped to impress a desired spatial pattern onto the component's pre-existing nanostructured surface with the first spatial feature distribution.

5. The system of claim 4 , wherein the surface of the template comprises a stepped surface which applies different loads to different regions of the pre-existing nanostructured surface with the first spatial feature distribution.

6. The system of claim 1 , wherein the force application element comprises a roller.

7. The system of claim 1 , wherein the force application element comprises a platen.

8. The system of claim 1 , wherein the force application element applies the predetermined load normal to the pre-existing nanostructured surface.

9. The system of claim 1 , further comprising an electronic control system configured to assist in at least selecting a specific one of a desired number of loads to be applied by the force application element.

10. The system of claim 1 , wherein the force application element has a mass selected to apply the desired load to the pre-existing nanostructured surface with the first spatial feature distribution when resting on the pre-existing nanostructured surface with the first spatial feature distribution.

11. The system of claim 9 , further comprising a memory for storing information used to select the specific one of the desired number of loads to be applied.

12. A system for producing a patterned nanostructured surface on a component from a pre-existing, nanostructured surface with an initial spatial feature distribution on the component, the system comprising:

a force application element configured to apply a force to the pre-existing, nanostructured surface; and

a force application subsystem configured to control elevational movement of the force application element along a first axis of movement into and out of contact with the pre-existing, nanostructured surface to apply a predetermined load to the pre-existing, nanostructured surface sufficient to modify the pre-existing, nanostructured surface to create the patterned nanostructured surface; and

a position control subsystem for moving at least one of the component or the force application element along at least one of X or Y axes while the force application element is applying the predetermined load to the pre-existing, nanostructured surface.

13. The system of claim 12 , wherein the position control subsystem controls movement of at least one of the component or the force application element in both of the X and Y axes.

14. The system of claim 12 , further comprising an electronic controller configured to control at least one of the force application subsystem or the position control subsystem.

15. The system of claim 12 , wherein the force application element comprises a linearly movable template.

16. The system of claim 15 , wherein the linearly movable template has a lower surface with a stepped contour.

17. The system of claim 12 , wherein the force application element comprises at least one of a roller, a platen or a stylus.

18. A method for producing a patterned nanostructured surface on a component from a pre-existing, nanostructured surface with an initial spatial feature distribution on the component, the method comprising:

positioning a force application element over the pre-existing, nanostructured surface;

moving the force application element along a first axis into contact with the pre-existing, nanostructured surface; and

continuing to use the force application element to apply a predetermined load to the pre-existing, nanostructured surface sufficient to modify the pre-existing nanostructured surface to create the patterned nanostructured surface.

19. The method of claim 18 , wherein moving the force application element into contact with the pre-existing, nanostructured surface comprises moving a template linearly into contact with the pre-existing, nanostructured surface with the initial spatial feature distribution.

20. The method of claim 18 , wherein moving the force application element into contact with the pre-existing, nanostructured surface comprises moving the force application element in at least one of X or Y axes extending perpendicular to the first axis, while applying the predetermined load.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 21, 2022
From: RAY, NATHAN JAMES; FEIGENBAUM, EYAL
To: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
Reel/Frame 059055/0913 →
CONFIRMATORY LICENSE (SEE DOCUMENT FOR DETAILS) Recorded Feb 4, 2022
From: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 058954/0177 →
Continuity (1)
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