fused silica index of refraction

High refractive index homogeneity fused silica glass and

It is known that such laser induced degradation adversely affects the optical properties and performance of the fused silica optics by decreasing light transmission levels discoloring the glass altering the index of refraction altering the density and increasing absorption levels of the glass

Fused Silicaan overview ScienceDirect Topics

Fused Silica Fused silica has low index of refraction low coefficient of thermal expansion and low inclusion content providing stability and resistance to thermal shock over large temperature deviations

RP Photonics EncyclopediaSellmeier formula refractive

As an example the refractive index of fused silica can be calculated as 2 where the wavelength in micrometers has to be inserted The Sellmeier coefficients are usually obtained by a least square fitting procedure applied to refractive indices measured in a wide wavelength range

Index of refraction of shock compressed fused silica and

Explicit relations between index of refraction and density are obtained for shock compressed fused silica and sapphire The relations are derived from the Doppler frequency corrections to velocity interferometry data obtained by Barker and Hollenbach in plate impact experiments The index density relation for sapphire was found using an

Refractive index of Fused silica fused quartz Malitson

2 C Z Tan Determination of refractive index of silica glass for infrared wavelengths by IR spectroscopy J Non Cryst Solids 223 1998 Sellmeier formula is reported in Ref 1 for the 0 21 3 71 μm wavelength range Ref 2 verifies the validity of the formula up to 6 7 μm

Index of refraction of shock‐compressed fused silica and

Explicit relations between index of refraction and density are obtained for shock‐compressed fused silica and sapphire The relations are derived from the Doppler‐frequency corrections to velocity‐interferometry data obtained by Barker and Hollenbach in plate‐impact experiments

Refractive indices of fused silica at low temperatures

fused silica Corning Code 7940 2 from 20 to200°C for 10 wavelengths from 404 7 to 667 8 nm Fused silica is an interesting material for study because it is known from earlier work that the change of refractive index with temperature dn/dT is very large being about 9

Interspecimen Comparison of the Refractive Index of Fused

The index of refraction of optical quality fused silica SiO2 was determined for 60 wavelengths from 0 21 to 3 71 μ at 20°C The dispersion equation n2 1=0 λ2λ2 0 2 0 λ2λ2 0 2 0 λ2λ2 9 896161 2 where λ is expressed in microns was found to yield an absolute residual of 10 5 10−6 The variation in index between 12 specimens was determined

Interspecimen Comparison of the Refractive Index of Fused

The index of refraction of optical quality fused silica SiO 2 was determined for 60 wavelengths from 0 21 to 3 71 μ at 20°C

Refractive Index of SiO2 Fused Silica Silica Silicon

Normal varieties of fused quartz contain water which gives it strong absorption bands in the infrared though there are water free varieties commercially available Its refractive index varies from 1 55 to 1 40 for its transparent range 160nm to 3000nm

Index of refraction of shock compressed fused silica and

As an example refractive index effects are calculated for a fused silica window experiencing a slowly rising compression wave generated in a glass ceramic material The present results also permit the polarizability behavior of these materials under shock compression to be examined

Malitson I H 1965 Interspecimen Comparison of the

Malitson I H 1965 Interspecimen Comparison of the Refractive Index of Fused Silica Journal of the Optical Society of America 55

SUPRASIL 1 2 3 and SUPRASIL StandardUnited Lens

The index homogeneity is controlled and specified either in one direction the direction of use or functional direction or even in all three dimensions In addition the materials provide excellent resistance to damage by high energy UV laser radiation All synthetic fused silica SUPRASIL grades are practically free from bubbles and inclusions

RP Photonics Encyclopedianonlinear index Kerr effect

For transparent crystals and glasses n 2 is typically of the order of 10 −16 cm 2 /W to 10 −14 cm 2 /W Fused silica as used e g in silica fibers has a particularly low nonlinear index of 2 7 10 −16 cm 2 /W for wavelengths around 1 5 μm whereas some chalcogenide glasses exhibit several hundred times higher values Semiconductor materials also have very high nonlinear index values

Temperature Dependence of the Index of Refraction of Fused

In order to explain the positive temperature coefficient of the visible index of refraction of fused silica I develop a simple model which assumes a single ultraviolet resonance Assuming thermal broadening and using the Kramers Kronig relations leads to a temperature coefficient in qualitative but not quantitative agreement with measurement

Intensity dependent nonlinear refractive index of fused

nonlinear refractive index n2 is very important in many nonlinear applications Measurement of the nonlinear refractive index started as far back at 1970 where n2 of some bulk glasses were measured n2 for fused silica was measured to be 2 73 10−16cm2/W with an accuracy of 0 1 at 1 06µm 13 A list of measurements

Nonlinear index of refraction of Cu and Pb implanted

Abstract We have measured the nonlinear index of refraction in high purity fused silica implanted with Pb and Cu ions using 100 ps pulses from a cw mode locked frequency doubled Nd YAG laser λ = 532 nm The nonlinear index measured for the Pb implanted silica is an order of magnitude larger than that for Cu silica

SOLVED The indices of refraction of fused silica

Problem 8 Easy Difficulty The indices of refraction of fused silica and a polystyrene within the visible spectrum are 1 458 and 1 60 respectively For each of these materials determine the fraction of the relative dielectric constant at 60 mat Hz that is due to electronic polarization using the data of Table 18 5 Neglect any orientation polarization effects

Spatial distribution of refractive index variations

We correlate phase contrast microscopy of modification tracks induced by tightly focused single ultrashort and short laser pulses inside fused silica with numerical simulations of nonlinear laser excitation footprints Different pulse durations on the femtosecond and picosecond range are compared in order to validate the experimental and theoretical observations on the subsequent refractive

Synthetic Fused SilicaStanford University

ultraviolet applications UV grade synthetic fused silica is an ideal choice Its tight index tolerance ensures highly predictable lens specifications The left hand table on page 4 13 shows the refractive index of a typical UV grade synthetic fused silica versus wavelength at 20ºC To obtain the index for optical quality synthetic fused

RP Photonics Encyclopedianonlinear index Kerr effect

For transparent crystals and glasses n2 is typically of the order of 10 −16 cm 2 /W to 10 −14 cm 2 /W Fused silica as used e g in silica fibers has a particularly low nonlinear index of 2 7 10 −16 cm 2 /W for wavelengths around 1 5 μm whereas some chalcogenide

Control of the refractive index change in fused silica

We demonstrate waveguide fabrication using of a loosely focused femtosecond laser that induces both nonlinear ionization and nonlinear propagation in silica glasses without any scanning process The numerical aperture is chosen to be 0 007 to avoid spatial splitting of the laser pulses during the nonlinear propagation of the femtosecond laser pulses inside the fused silica glass

Get Answer The indices of refraction of fused silica

The indices of refraction of fused silica and polystyrene within the visible spectrum are 1 458 and 1 60 respectively For each of these materials determine the fraction of the relative dielectric constant at 60 Hz that is due to electronic polarization using the data of Table 12 5

Temperature dependent refractive index of silicon and

synthetic fused silica CHARMS can measure absolute index with an uncertainty in the sixth decimal place of index For materials with higher indices and high dispersion such as Si or Ge CHARMS can measure absolute index with an uncertainty of about one part in the fourth decimal place of index Measurement and calibration methods nsed and

Quartz Glass for Optics Data and Properties

two dimensional refraction index distribution The inter ferogram belongs to a circular blank The sectional view along the diameter shows the refrac tion index distribution across the blank One can clearly see the very low value in the center of the plate and the rise close to the edge The false colour diagram below shows the typical

Temperature dependent refractive index of silicon and

synthetic fused silica CHARMS can measure absolute index with an uncertainty in the sixth decimal place of index For materials with higher indices and high dispersion such as Si or Ge CHARMS can measure absolute index with an uncertainty of about one part in the fourth decimal place of index Measurement and calibration methods nsed and

The table gives the index of refraction of fused silica

The table gives the index of refraction of fused silica glass as I DATA function of wavelength in vacuum Construct a graph of the index of refraction as a function of the wavelength Make a best fit to the linear portion of the data curve to determine at what wavelength n = 1 4200 To what portion of the electromagnetic spectrum does this

Index of refraction of fused quartz glass for ultraviolet

Index of Refraction of Fused Quartz Glass for Ultraviolet Visible and Infrared Wavelengths 1 William S Rodney and Robert J Spindler The index of refraction of fused quartz gJass was determined for 24 wavelengths from 0 34669 to 3 5078 microns llsing the minimum deviation method The whole range as covered with a single instrument

Solved The indices of refraction of fused silica and

The indices of refraction of fused silica and polystyrene within the visible spectrum are 1 458 and 1 60 respectively For each of these materials determine the fraction of the relative dielectric constant at 60 Hz that is due to electronic polarization using the data of Table 18 5

Explore further

Making of fused silicaHeraeus

One step fused silica production Chemical vapor deposition CVD For the production of optical fiber core rods deposition of fused silica with a defined refractive index is done inside of fused silica tubes The chemicals are brought into the tube by a carrier gas The reaction to

Corning HPFS 7979 7980 8655 Fused Silica

HPFS Fused Silica Materials Fused Silica is offered in many different grades to support various product applications Glass codes 7980 7979 and 8655 are high purity non crystalline silica glasses with excellent optical qualities Product characteristics include extraordinary low refractive index variations leading to state of the art