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Across 4. Light as a particle and a ______ 5. Fundamental particles, incapable of independent existence, that combine to form particles such as protons and neutrons. 7. Consequence of the high spatial conherency of a Laser 9. A device that produces an intense, coherent, directional beam of microwave 11. Equations describe the interrelationship between electric field, magnetic field, electric charge, and electric current 12. System of equations that describes the changes in populations of various states 13. Norfolk State University mascot 15. first Substance to produce laser action in the visible spectrum 18. Light that is unable to escape from media experience 19. A light-sensitive membrane lining the posterior part of the inside of the eye 21. The generation and sending out of radiant energy 22. <W| 23. Polarized light is represented with _____matrices 27. An optical element consisting of two plane parallel reflective surfaces 28. ______ barium borate 31. metric unit of illuminance 34. Aluminum 36. Unwanted radiative transition in a laser system 37. Arrangement of mirrors that forms a standing wave cavity resonator for light waves 38. Wave phenomenon commonly observed in mirrors 40. A radio device for detecting the position of distant masses and the course of moving objects. 44. Process of blocking the transmission of the cavity to permit a greater upper state population. 46. The bending of light 47. The shape of the Laser _____ can be changed 51. Causes the spatial separation of a white light into spectral components 53. _______efficiency- percentage of pump band population that transfers to the upper laser state 54. A general law describing the reflection, refractoin, and transmission of light from an interface. 55. Superposition of two or more waves resulting in a new wave pattern 56. Amplification 57. Diode such that light emitted at a p-n 58. |W>

Down 1. Width of a distribution at half of its maximum value 2. Gas laser, usual operats at 632.8 nm 3. device that selectively transmits light having certain properties 6. Separation of light into its component wavelengths 8. photons with the same relative phase are _____ 10. A resonator where the beam is permanently trapped 14. Energy per unit time 16. Wedge-shaped piece of glass used to disperse light into a spectrum 17. Visible EM radiation 20. An inhomogenous broadening process 24. Branch of physics that studies the physical properties of light 25. A piece of glass that refracts light 26. Photometric measure of the density of luminous intensity in a given direction 29. gain______ is the reduce in optical gain as the cavity intensity increases 30. The distance between crests of a waveform. 32. The spacing between the modes of a Fabry-Perot etalon 33. Special theory of relativity 35. Measure of the time-averaged energy flux 39. The passage of radiant energy through a medium 41. Source of loss in optical materials 42. Equal to the speed of the wave divided by the wavelength of the wave 43. One billionth of a meter 45. The material surrounding the core of an optical waveguide. 48. A sensor that collects light and turns it into an electrical signal 49. A device that produces an intense, coherent, directional beam of visible light 50. Imaging technique whereby a beam of electrons is transmitted through a specimen 52. Display which uses organic material as a diode type light emitting material