METHOD AND SYSTEM FOR TRANSMITTING LIGHT

• US 20140313315A1
• Filed: 11/15/2012
• Published: 10/23/2014
• Est. Priority Date: 11/15/2011
• Status: Abandoned Application

• Current Assignee: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION, LTD.
• Original Assignee: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION, LTD.
• Inventors: Shoham, Shy, Dana, Hod
• Application Number:
  US14/358,255
• Publication Number:
  US 20140313315A1
• Time in Patent Office: Days
• US Class Current: 348/80
• CPC Class Codes: G01N 21/01 Arrangements or apparatus for facilitating the optical investigation
• CPC Class Codes: G02B 21/002 Scanning microscopes scanning near field optical microscopes G01Q60/18
• CPC Class Codes: G02B 21/0032 Optical details of illumination, e.g. light-sources, pinholes, beam splitters, slits, fibers G02B21/0036 - G02B21/008; means for illumination of specimens in general G02B21/06
• CPC Class Codes: G02B 21/0084 time-scale detection, e.g. strobed, ultra-fast, heterodyne detection
• CPC Class Codes: G02B 27/0927 Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
• CPC Class Codes: H01S 3/0057 Temporal shaping, e.g. pulse compression, frequency chirping soliton generation and propagation G02F1/3513, H01S3/063 and H01S3/108

Abstract

A temporal focusing system is disclosed. The temporal focusing system is configured for receiving a light beam pulse and for controlling a temporal profile of the pulse to form an intensity peak at a focal plane. The temporal focusing system has a prismatic optical element configured for receiving the light beam pulse from an input direction parallel to or collinear with the optical axis of the temporal focusing system and diffracting the light beam pulse along the input direction.

Claims

1. An optical system, comprising a temporal focusing system characterized by an optical axis and being configured for receiving a light beam pulse and for controlling a temporal profile of said pulse to form an intensity peak at a focal plane, said temporal focusing system having a prismatic optical element configured for receiving said light beam pulse from an input direction parallel to or collinear with said optical axis and diffracting said light beam pulse along said input direction.

2. The optical system of claim 1, wherein said temporal focusing system comprises a collimator and an objective lens aligned collinearly with respect to optical axes thereof, and wherein said prismatic optical element is configured for diffracting said light beam onto said collimator.

4. The optical system according to claim 1, further comprising a spatial manipulating system positioned on the optical path of said light beam pulse and aligned such said spatial manipulating optical system and said temporal focusing system are optically parallel or collinear with respect to optical axes thereof.

5. The optical system according to claim 4, wherein said spatial manipulating system comprises a spatial focusing system.

7. The optical system according to claim 4, wherein said spatial manipulating system comprises an optical patterning system.

9. The optical system according to claim 1, wherein said prismatic optical element is mounted on a stage movable with resects to said optical axis.

10. The optical system according to claim 9, further comprising a controller for moving said stage.

11. The optical system according to claim 1, further comprising a beam splitting arrangement configured to split said light beam to a plurality of secondary light beams, wherein at least a few of said secondary light beams propagate along an optical path parallel to said input direction, and wherein said temporal focusing system comprises a plurality of prismatic optical elements each arranged to receive one secondary part light beam and to diffract a respective part along a respective optical path.

12. The optical system according to claim 11, further comprising a redirecting optical arrangement configured for redirecting said diffracted secondary light beams such that all secondary light beams propagate in said temporal focusing system collinearly with said optical axis thereof.

13. The optical system according to claim 1, wherein said temporal focusing system is characterized by a numerical aperture of at least 0.5 and optical magnification of at least 40.

14. The optical system according to claim 1, further comprising a light source and a light detection system, the optical system being configured for multiphoton microscopy.

17. The optical system according to claim 9, further comprising a light source, a light detection system, and a data processor configured to receive light detection data from said light detection system and stage position data from said controller and to provide optical sectioning of a sample, wherein each optical section corresponds to a different depth in said sample.

18. The optical system according to claim 1, being configured for multiphoton manipulation.

19. The optical system according to claim 1, being configured for material processing.

20. The optical system according to claim 1, being configured for photolithography.

21. The optical system according to claim 1, being configured for photoablation.

22. The optical system according to claim 1, being configured for neuron stimulation.

23. The optical system according to claim 1, being configured for three-dimensional optical data storage.

3. (canceled)

6. (canceled)

8. (canceled)

15-16. -16. (canceled)

24. An optical system, comprising:

a beam splitting arrangement configured for split an input light beam pulse to a plurality of secondary light beams propagating along a separate optical path;

a temporal focusing optical system configured for receiving each of said secondary light beams and for controlling a temporal profile of a respective pulse to form an intensity peak at a separate focal plane.

25-26. -26. (canceled)

27. A system for multiphoton microscopy, comprising:

a light source, an objective lens, a collimator, a first optical set having at least a prismatic optical element, a second optical set having at least one lens, and an optical switching system;

wherein said first optical set is configured for effecting temporal focusing at a focal plane near said objective, said second optical set is configured for effecting only spatial focusing at said focal plane; and

wherein said switching optical system is configured for deflecting an input light beam to establish an optical path either through said first optical set or through said second optical set.

28-33. -33. (canceled)

34. A method of imaging a sample, comprising:

acquiring a first depth image of the sample using multiphoton laser scanning microscopy;

acquiring a second depth image of the sample using multiphoton temporal focusing microscopy;

using said first depth image to calculate a transfer matrix describing a relation between individual elements of the sample and said first depth image; and

processing said second depth image using said transfer matrix.