1. Fuction: for determination of refractive index.

2. Natural materials all have a positive refractive index.

3. Refractive index is the essential parameter of tissular optical characteristics.

4. A novel method for active fiber refractive index measurement based on beat frequency interrogation of the multi-longitudinal-mode distributed Bragg reflector (DBR) fiber laser was presented.

5. Acquiring film thickness, material's refractive index and extinction coefficient, component and so on.

6. Besed on refractive index definition, the article introduce its physical meaning, measurement, applications and research department of "negative refractive index" .

7. The relation amongst composition, densities, refractive index, Abbe number and transmission was studied.

8. Each structure has its own refractive index, and when a light ray crosses an area where the index changes, the light scatters, creating a degree of opaqueness .

9. It is found that when the refractive index of defect was changed, the coupling effect between the defect modes was varied, which results in the change of the impurity band.

10. Four effective methods on measuring refractive index of wave guide film are given. All of the methods are studied, especially, an experiment is done by the prism coupling method.

11. High - performance liquid chromatographic - differential refractive index detective ( HPLC - dRI ) method was established to determine soyasaponins.

12. The genetic algorithm is employed to inverse the refractive index of a particulate system.

13. In this paper. the influence of refractive index change under different conditions such as the laser incidence angle, the angle between micro-cantilever and liquid surface is theoretically analyzed.

14. A new measurement method of refractive index of plane-parallel plate has been introduced in this paper, which is performed by thin laser beam.

15. A planar film of refractive index nf is sandwiched between a substrate and a cover material.

16. The form of the refractive index variation in waveguide in separate confinement heterostructure ( SCH ) affects directly the far-field distribution of the emission light.

17. A directing technique is described to define the refractive index ellipse of the end face for SPSM fiber, particularly, for Bow-Tie fiber, by etching method.

18. The UV-975 variable wavelength detector has a tapered flow cell giving reduced refractive index effects.

19. The intensity of scattering is a function of the electron density and therefore of the refractive index.

20. Based on the band transport model, the buildup of space charge field and the light-induced refractive index changes in photorefractive crystals are discussed.

21. A new method is proposed for the measurement of imaginary part of refractive index ni of aerosol by using an optical particle counter (OPC) and a visibility meter (VM).

22. The urinary concentrations of lactulose and mannitol were determined by a refractive index detector .

23. The effects of the thickness of metallic film and grating period on the refractive index sensitivity of the device are analyzed in detail.

24. The characteristics of this sensor is analysed. It is concluded that for a certain refractive index range, the index of fibre core, the radius of core and bending radius need to be optimized.

25. This article begins with introducing the conception of refrangibility, and then the relation between refractive index and density of the gas is established.

26. The tapered waveguide performs mode transformation between optical fiber mode and polymer waveguide mode by using a refractive index taper and a width taper with wedge profile.

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27. The optical admittance approach to design antireflection coatings of superluminescent diodes is described and effective refractive index is introduced.

28. Optical interference takes place in a thin transparent wedge of refractive index m.

29. It is a simple and sensitive method to measure the refractive index with optical fiber plasma wave.

30. It is proved that the performance of the shutter Q-switch will be improved by placing- the prism in a closed cell with gas of suitable refractive index.

31. Counterfeiting in general non - colors or refractive index of refraction of the same color.

32. Incorporating array of metallic wires into the host media, such as ferrimagnet YIG under an external magnetic bias field, is a novel method to synthesize negative refractive index (NRI) material.

33. The bigger the refractive index ratio of two primitive dielectrics of one-dimensional photonic crystals is, the narrower the transmission band is.

34. The compatibility of the blends was studied by viscometry, refractive index, and the thermal stability of them was also observed by TG.

35. Self-focusing and self-defocusing have their origin in the intensity dependence of the refractive index of the nonlinear medium.

36. Appropriate physical constants such as melting range, boiling range, refractive index, dissociation constants (pK values), and optical rotation.

37. The refractive index structure parameters of equidistance between sensors and dome in different directions are different.

38. Biological reactions are probed by detecting the change of refractive index.

39. The researchers placed a silicon nitride waveguide on a transparent nanoporous silicon oxide substrate that they specially developed to have a much lower refractive index than that of the waveguide.

40. Sodium tellurite glasses are considered as potential candidates for non-linear optical applications because of high refractive index values and wide infrared transmittance.

41. We have studied the influence of different annealing conditions on refractive index profiles of He and H ions implanted lithium niobate planar waveguides.

42. The third generation techniques such as light propagation control achieved by refractive index distribution in core and clad are promising.

43. Meanwhile, due to the utilization of information on refractive index distribution, geometrical distortions usually observed in conventional OCT images are avoided in the PICT image.

44. The measurement of refractive index inhomogeneity of optical glass with laser hol lography was presented.

45. The multimode waveguide area is one multimode interference area provided with two refractive index variable regions.

46. Based on the corneal data, the effects of equivalent refractive index and error in radius of curvature on the corneal vergence measurement after refractive surgery are studied theoretically.

47. In this paper, it is indicated than the refractive index of extraordinary rayin the Nicol prism often means ractive index. Also the method calculated thisractive index has been given.

48. In this article, the influences of the mode field diameter, the cutoff wavelength and the relative refractive index difference on the OTDR curve are also verified.

49. Random fluctuation of turbulence brings random fluctuation of refractive index and makes atmosphere become a random fluctuation medium, which destroys the coherence of light-wave.

50. We considered intensity distribution of light focused by a high numerical aperture lens without spherical aberration through a planar interface between materials of mismatch refractive index.

51. The lyotropic liquid crystalline behavior of a natural macromolecule-chitosan was studied using polarized microscopy, average refractive index method and FTIR.

52. The bistability results from the refractive index change due to light injection.

53. The sensing principle is optical fiber bend waveguide can be modified in response to an external refractive index.

54. Based on the compressive sampling theory, a new tomography algorithm of grating-based differential imaging is proposed to exactly reconstruct the refractive index of object from limited projections.

55. These devices can not only accomplish polarized light interference experiment, but also measure the refractivity or refractive index profile of crystal.

56. The refractive index distribution function of long period fiber grating (LPG), which is ultraviolet written by amplitude mask, is a rectangular wave in the core region.

56.

57. It is revealed that the effective refractive index and the DC coupling coefficient, as well as the AC coupling coefficient of odd order modes, will be decreased with the increase in wavelengths.

58. The shift error in ERS SAR image is calculated using the measurements of refractive index profile in Beijing area and moderate electron concentration in China.

59. In the paper, the method of test about OE-PCB was reviewed. Including mainly Refractive Index, Optical Propagation Loss, Surface Roughness, Eye Pattern, Bite Error Rate Test and Environment Impact.

60. The idocrase jade can be easily identified from jadeite jade and hydrogrossular by its higher refractive index, texture and 465 nm absorption spectrum.

61. Relationship between refractive index and packing density of coatings prepared by glancing angle deposition is analyzed and three expressions are given firstly.

62. Photonic crystal a manmade crystal in which dielectric media with different refractive index is arranged periodically.

63. High - performance liquid chromatographic - differential refractive index detective ( HPLC - dRI ) method was established to determine group A soyasaponins.

64. There are some techniques such as the refractometry are often used to measure the refractive index of the sample both in science and industry.

65. Surface plasmon resonance technology was introduced into the testing study of the refractive index of biological tissues, whose testing theory is discussed theoretically.

66. The miscibility of CS blends in formic acid was characterized by solubility parameter, dilute solution viscometry, refractive index and glass transition temperature, FT-IR etc.

67. After calculating the effective refractive index of the structure, we have verified that the impurity band has a normal dispersion.

68. A novel photorefractive nonlinear optics model was presented based on an optical beam erasing refractive index grating and two- beam coupling.

69. In addition, the effects of wavelength, ellipticity and relative refractive index difference on the transmission constant are briefly analyzed.

70. Refractive index of the couplant plays an important role for obtaining high light output.

71. It shows that the active channel with sizeable optical gain and a substantial increase of the refractive index are promising for the realization of active waveguide tunable laser.

72. When the refractive index changed the moving direction, it relied on the sign of change.

73. Laser phase Doppler anemometry (PDA)technology can be used to measure moving particle's velocity, size and relative refractive index simultaneously.

74. At the same time, the mechanism of refractive index modification, which induced by femtosecond pulse, is discussed too.

75. With SM-28 single mode fiber as the leading fibers, depth of modulation (DM) and coupling efficiency (CE) are calculated with relation to core radius and refractive index of core and inner cladding.

76. A simple method of estimating refractive index of glass prism using only a pencil and a set square is presented.

77. The structure parameter of refractive index imaginary part for the different latent heat flux was calculated by means of simulation theory.

78. Using the refractive index data determine the approximate composition of your oil, your carvone fraction and your limonene fraction with respect to limonene and carvone.

79. The deposition rate, morphologies, breakdown voltage and refractive index were studied.

80. A method to determine three-dimensional refractive index profile of holey fiber using a combination of quantitative phase microscopy and tomographic reconstruction techniques is described.

81. The basic idea is to self-assemble a colloidal suspension of monodisperse microspheres and use this crystal as a template for introducing a higher refractive index background material, such as metals.

82. The error in radius of curvature as well as the equivalent refractive index should be considered in the corneal vergence measurement for eyes after refractive surgery.

83. The ultraviolet-induced refractive index changes, measured by prism coupler and spectroscopic ellipsometer , are dependent on the number of laser shots and the pulse repetition rate.

84. When common Michelson interferometer is used for measuring air refractive index, there is a major problem that the optic path difference is so large that the fringes is to close too count.

85. According to the refractive index ellipsoid of uniaxial crystal, the relationship between diffraction efficiency of volume grating and polarization state of readout beam is theoretically analyzed.

86. As the pressure tuning is carried out by freon with high refractive index,[Sentence dictionary] the tuning range can be expanded to 550 GHz.

87. The refractive index n ( X ) varies gradually over the cross - section of the guide.

88. The crystal lattice parameters, refractive index and the optical damage threshold were tested.

89. The origin of optically induced refractive index in lithium niobate is presented.

90. Used for bonding optics lens and some high refractive index LCD.

91. With the measuring system equipped with a microchip solid laser and a unique refractive index matching cladding mode filter, the transmission loss of a double clad fiber laser was measured.

92. Based on the Bragg's law, the ordered TiO2 inverse opal films were successfully used as refractive index sensors with a resolution of 0.01.

93. This item firstly proposes a new scheme of "optical engineering of changing refractive index".

94. The encapsulant includes an inner lens and an outer lens, the inner lens having a refractive index less than, and in some cases about 70 to 80% of, the refractive index of the outer lens.

95. The function n ( x, y ) is known as the refractive index profile.

96. If the bubbles into the water or oil immersed in ( 1.66 refractive index oil better) observation, is more clear.

97. The effect of terpenyl gallates on room temperature stability was studied by evaluation of peroxide value, acid value, refractive index of biodiesel.

98. The density, viscosity, refractive index and flash point of glutarate were measured at the same temperature.

99. The array of medium with high or low refractive index affects the quality factor of micro - cavity.

100. When irradiated by two-beams, the sample can set up refractive index grating, and the optical holographic storage was achieved.

101. It is shown that the Goos-Hnchen shift of the transmitted light beam in propagating case is a periodical function of the air-gap thickness, incidence angle and the refractive index of two prisms.

102. Because of its ultra - fine crystal structure and high refractive index, it make color more abundance satiation.

103. The instrumental error of the sensor was estimated through measuring to the refractive index matching liquid.