Method for producing active glass nanoparticles by laser ablation
View Patent ↗A method for producing active glass nanoparticles that exhibit upconversion is described. The method employs pulsed-laser ablation of an active glass substrate using, for example, a high repetition rate ultra-short pulse duration laser under normal atmospheric conditions or in a liquid environment.
1. A method for producing active glass nanoparticles, comprising
subjecting an active glass substrate material to a plurality of laser generated light pulses; and
collecting nanoparticles ejected from said substrate material;
wherein said nanoparticles exhibit upconversion luminescence.
2. A method for producing active glass nanoparticles as recited in claim 1 , further comprising ablating said substrate material with said laser.
3. A method as recited in claim 1 , wherein said substrate material is in a liquid environment.
4. A method as recited in claim 1 , wherein said substrate material is in a gaseous environment.
5. A method as recited in claim 1 , wherein said substrate material comprises an Erbium-doped material.
6. A method as recited in claim 1 , wherein said substrate material comprises an Erbium-doped Bismuth Oxide material.
7. A method as recited in claim 1 , wherein said substrate material comprises Bi 2 O 3 based Er-doped glass material.
8. A method as recited in claim 1 , wherein said laser comprises a high repetition-rate, ultra-short pulse duration laser.
9. A method as recited in claim 1 , further comprising collecting said nanoparticles on a silicon or glass substrate.
10. A method as recited in claim 1 , wherein said nanoparticles have a mean particle diameter of approximately 17 nm.
11. A method for producing active glass nanoparticles, comprising
ablating an active glass substrate with light from a pulsed-laser; and
collecting nanoparticles ejected from said substrate material;
wherein said nanoparticles exhibit upconversion luminescence.
12. A method as recited in claim 11 , wherein said substrate material is in a liquid environment.
13. A method as recited in claim 11 , wherein said substrate material is in a gaseous environment.
14. A method as recited in claim 11 , wherein said substrate material comprises an Erbium-doped material.
15. A method as recited in claim 11 , wherein said substrate material comprises an Erbium-doped Bismuth Oxide material.
16. A method as recited in claim 11 , wherein said substrate material comprises Bi 2 O 3 based Er-doped glass material.
17. A method as recited in claim 11 , wherein said laser comprises a high repetition-rate, ultra-short pulse duration laser.
18. A method as recited in claim 11 , further comprising collecting said nanoparticles on a silicon or glass substrate.
19. A method as recited in claim 11 , further comprising collecting said nanoparticles via a downstream fluidic conduit.
20. A method as recited in claim 11 , wherein said nanoparticles have a mean particle diameter of approximately 17 nm.
21. A method for producing active glass nanoparticles, comprising
ablating an active glass substrate with light from a high repetition-rate, ultra-short pulse duration laser; and
collecting nanoparticles ejected from said substrate material;
wherein said nanoparticles exhibit upconversion luminescence.
22. A method as recited in claim 21 , wherein said substrate material is in a liquid environment.
23. A method as recited in claim 21 , wherein said substrate material is in a gaseous environment.
24. A method as recited in claim 21 , wherein said substrate material comprises an Erbium-doped material.
25. A method as recited in claim 21 , wherein said substrate material comprises an Erbium-doped Bismuth Oxide material.
26. A method as recited in claim 21 , wherein said substrate material comprises Bi 2 O 3 based Er-doped glass material.
27. A method as recited in claim 21 , further comprising collecting said nanoparticles on a silicon or glass substrate.
28. A method as recited in claim 21 , further comprising collecting said nanoparticles via a downstream fluidic conduit.
29. A method as recited in claim 21 , wherein said nanoparticles have a mean particle diameter of approximately 17 nm.
30. A method for producing active glass nanoparticles, comprising:
ablating an active glass substrate with light from a pulsed-laser; and
collecting nanoparticles ejected from said substrate material;
wherein said nanoparticles are collected via a downstream fluidic conduit.