Non-linear optical simulator for collisional plasmas

Patent metadata

Field	Value
Publication number	US-10631394-B2
Application number	US-201816135771-A
Country	US
Kind code	B2
Filing date	Sep 19, 2018
Priority date	Sep 19, 2018
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

A system for modeling a collisional plasma particles distribution is provided. The system includes an input beam generator configured to generate an input beam having a first set of values of a parameter modelling an initial distribution of particles in a collisional plasma, a non-linear optical medium configured to receive the input beam and produce a complex response function in response to receiving the input beam, an output detector configured to detect a second set of values of the parameter responsive to propagation of the input beam through the non-linear medium to the output detector, a feedback module configured to modify one or more properties of the non-linear optical medium, and a controller configured to select the first set of values, receive the second set of values, and determine, based on the first set and the second set of values, a final distribution of the particles in the collisional plasma.

First claim

What is claimed is:

1. An optical system for modeling a distribution of collisional plasma particles, the system comprising:
an input beam generator configured to generate an input beam having a first set of values of at least one parameter, the first set of values of the one or more parameters modelling an initial distribution of particles in a collisional plasma;
a non-linear optical medium configured to receive, from the input beam generator, the input beam, the non-linear medium being configured to produce a complex response function in response to receiving the input beam;
an output detector configured to detect a second set of values of the at least one parameter responsive to propagation of the input beam through the non-linear medium to the output detector;
a feedback module coupled to the non-linear optical medium and configured to modify one or more properties of the non-linear optical medium; and
a controller configured to select the first set of values of the at least one parameter, communicate the first set of values of the at least one parameter to the input beam generator, receive, from the output detector, the second set of values of the at least one parameter, and determine, based on the first set of values of the at least one parameter and the second set of values of the at least one parameter, a final distribution of the particles in the collisional plasma.

2. The system of claim 1 , wherein the at least one parameter includes at least one of a phase of the input beam and an amplitude of the input beam.

3. The system of claim 1 , wherein the controller is further configured to select a first set of values of a feedback parameter and provide, to the feedback module, the first set of values of the feedback parameter.

4. The system of claim 3 , wherein the feedback module includes a pump beam generator configured to generate a pump beam, and provide the pump beam to the non-linear optical medium to modify the complex response function of the non-linear optical medium.

5. The system of claim 4 , wherein the feedback parameter includes a frequency of the pump beam generated by the pump beam generator.

6. The system of claim 4 , wherein the feedback parameter includes a field intensity of the pump beam generated by the pump beam generator.

7. The system of claim 3 , wherein the feedback module includes a foreign atom injector configured to inject foreign atoms into the non-linear optical medium to modify the complex response function of the non-linear optical medium.

8. The system of claim 7 , wherein the feedback parameter is indicative of a distribution of foreign atoms in the non-linear optical medium.

9. A method of modeling a distribution of collisional plasma particles, the method comprising:
selecting a first set of values of one or more parameters of an input beam, the one or more parameters modelling an initial distribution of particles in a collisional plasma;
communicating the first set of values of the one or more parameters to an input beam generator;
generating, by the input beam generator based on the first set of values of the one or more parameters, an input beam;
providing, by the input beam generator, the input beam to a non-linear optical medium configured to produce a complex response function in response to receiving the input beam;
propagating the input beam through the non-linear optical medium;
detecting a second set of values of the one or more parameters of the input beam responsive to propagation of the input beam through the non-linear optical medium;
analyzing the first set of values of the one or more parameters and the second set of values of the one or more parameters;
selecting, based on the analyzing, a first set of values of a feedback parameter;
providing the first set of values of the feedback parameter to a feedback module to modify a complex response function of the non-linear optical medium; and
modelling, based on the analyzing, a final distribution of the particles in the collisional plasma.

10. The method of claim 9 , wherein the one or more parameters include at least one of a phase of the input beam and an amplitude of the input beam.

11. The method of claim 9 , further comprising generating, based on the first set of values of the feedback parameter, a pump beam, and providing the pump beam to the non-linear optical medium to modify the complex response function of the non-linear optical medium.

12. The method of claim 11 , wherein the feedback parameter includes a frequency of the pump beam.

13. The method of claim 11 , wherein the feedback parameter includes a field intensity of the pump beam.

14. The method of claim 9 , further comprising injecting, based on the first set of values of the feedback parameter, foreign atoms into the non-linear optical medium to modify the complex response function of the non-linear optical medium.

15. The method of claim 14 , wherein the feedback parameter is indicative of a distribution of foreign atoms.

16. A non-transitory computer-readable medium storing sequences of computer-executable instructions for modeling a distribution of collisional plasma particles, the sequences of computer-executable instructions including instructions that instruct at least one processor to:
select a first set of values of one or more parameters of an input beam, the one or more parameters modelling an initial distribution of particles in a collisional plasma;
communicate the first set of values of the one or more parameters to an input beam generator to control the input beam generator to generate, based on the first set of values of the one or more parameters, the input beam;
control the input beam generator to provide the input beam to a non-linear optical medium configured to produce a complex response function in response to receiving the input beam;
detect a second set of values of the one or more parameters of the input beam responsive to propagation of the input beam through the non-linear optical medium;
analyze the first set of values of the one or more parameters and the second set of values of the one or more parameters;
select a first set of values of a feedback parameter;
provide the first set of values of the feedback parameter to a feedback module to modify a complex response function of the non-linear optical medium; and
model, based on the analyzing, a final distribution of the particles in the collisional plasma.

17. The computer-readable medium of claim 16 , wherein the sequences of computer-executable instructions further include instructions that instruct the at least one processor to generate, based on the first set of values of the feedback parameter, a pump beam, and provide the pump beam to the non-linear optical medium to modify the complex response function of the non-linear optical medium.

18. The computer-readable medium of claim 17 , wherein the feedback parameter includes at least one of a frequency of the pump beam and a field intensity of the pump beam.

19. The computer-readable medium of claim 16 , wherein the sequences of computer-executable instructions further include instructions that instruct the at least one processor to control the feedback module to inject, based on the first set of values of the feedback parameter, foreign atoms into the non-linear optical medium to modify the complex response function of the non-linear optical medium.

20. The computer-readable medium of claim 19 , wherein the feedback parameter is indicative of a distribution of foreign atoms.

Assignees

• Raytheon Bbn Technologies Corp

Inventors

• Krovi Hari Kiran

Classifications

• G01N2015/035

  the optical arrangement forming an integrated apparatus with the sample container · CPC title

• G01N2015/1454

  using phase shift or interference, e.g. for improving contrast · CPC title

• G01N15/06

  Investigating concentration of particle suspensions (by weighing G01N5/00; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10) · CPC title

• H05H1/0018 Primary

  Details · CPC title

• G01N15/1434

  Optical arrangements · CPC title