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US 5,636,050 AGranted
Apparatus using optical deflection
AssigneeThe Research Foundation of City College of New York
InventorsRobert R. Alfano, Ping-Pei Ho, Lina Yang, Quan Z. Wang
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Abstract
An optical streak camera includes an optical collimator, an all optical deflector, a detector and a display.
Claims7
An optical streak camera for measuring an input temporal signal beam of light, said optical streak camera comprising:
- a. means for collimating said input temporal signal beam of light to be measured,
- b. a first all optical deflector for receiving the collimated input temporal signal and converting the input temporal signal beam of light into a spatial signal beam of light,
- wherein the first all optical deflector comprises a body of nonlinear optical material and an area modulated, time-dependent, intensity-modulated pump beam of light for producing a time-dependent induced refractive index change in the body of nonlinear material, said induced refractive index change causing a sweeping of said collimated input temporal signal beam of light,
- c. a detector for detecting the spatial signal beam of light, and
- d. a display for displaying the spatial signal beam of light.
2 more elements
An optical streak camera for displaying an input temporal signal beam of light, said optical streak camera comprising:
- a. means for collimating said input temporal signal beam of light to be measured,
- b. a first all optical deflector for receiving the collimated input temporal signal beam and sweeping the input temporal signal beam of light into a spatial signal beam of light, said all optical deflector including a non-linear material and a beam of continuous pump pulses, the intensity of said continuous pump pulses being modulated over time to vary the index of refraction of the non-linear material to enable sweeping,
- c. a detector for detecting the spatial signal beam of light, and
- d. a display for displaying the spatial signal beam of light,
- e. the frequency of the display matching the frequency of the pump pulses.
2 more elements
Dependencies are inferred from the claim text.