Direct measurements of residual absorption in fluoridic thin films and optical materials for DUV laser applications

2006 ◽  
Author(s):  
Ch. Mühlig ◽  
W. Triebel ◽  
S. Kufert ◽  
Ch. Noppeney ◽  
H. Bernitzki
Keyword(s):  
Thin Films ◽  
Optical Materials ◽  
Laser Applications ◽  
Direct Measurements

Study of optical parameters of Sulphur doped Se-As thin films as optical materials

Optik ◽  
2021 ◽  
pp. 167447
Author(s):  
Anjani Kumar ◽  
R.K. Shukla ◽  
Rajeev Gupta
Keyword(s):  
Thin Films ◽  
Optical Materials ◽  
Optical Parameters

scholarly journals Reconfigurable Flat Optics with Programmable Reflection Amplitude Using Lithography‐Free Phase‐Change Material Ultra‐Thin Films (Advanced Optical Materials 2/2021)

2021 ◽  
Vol 9 (2) ◽  
pp. 2170006
Author(s):  
Sébastien Cueff ◽  
Arnaud Taute ◽  
Antoine Bourgade ◽  
Julien Lumeau ◽  
Stephane Monfray ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Change ◽  
Phase Change Material ◽  
Optical Materials ◽  
Reflection Amplitude ◽  
Change Material

scholarly journals Direct Measurements of the Radiolytic Transformation of Thin Films of Titanium Dioxide using EELS

1995 ◽  
Vol 6 (4) ◽  
pp. 433-440 ◽  
Author(s):  
Peter Rez ◽  
Jon Karl Weiss ◽  
Douglas L. Medlin ◽  
David G. Howitt
Keyword(s):  
Thin Films ◽  
Titanium Dioxide ◽  
Direct Measurements

Optical Propagation in Solids

2006 ◽  
Author(s):  
Michael E. Thomas
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Solid State ◽  
Optical Fibers ◽  
Optical Materials ◽  
Photonic Devices ◽  
Index Of Refraction ◽  
Optical Detectors ◽  
Optical Propagation ◽  
Valence Bands

This chapter emphasizes the linear optical properties of solids as a function of frequency and temperature. Such information is basic to understanding the performance of optical fibers, lenses, dielectric and metallic mirrors, window materials, thin films, and solid-state photonic devices in general. Optical properties are comprehensively covered in terms of mathematical models of the complex index of refraction based on those discussed in Chapters 4 and 5. Parameters for these models are listed in Appendix 4. A general review of solid-state properties precedes this development because the choice of an optical material requires consideration of thermal, mechanical, chemical, and physical properties as well. This section introduces the classification of optical materials and surveys other material properties that must be considered as part of total optical system design involving solidstate optics. Solid-state materials can be classified in several ways. The following are relevant to optical materials. Three general classes of solids are insulators, semiconductors, and metals. Insulators and semiconductors are used in a variety of ways, such as lenses, windows materials, fibers, and thin films. Semiconductors are used in electrooptic devices and optical detectors. Metals are used as reflectors and high-pass filters in the ultraviolet. This type of classification is a function of the material’s electronic bandgap. Materials with a large room-temperature bandgap (Eg > 3eV) are insulators. Materials with bandgaps between 0 and 3 eV are semiconductors. Metals have no observable bandgap because the conduction and valence bands overlap. Optical properties change drastically from below the bandgap, where the medium is transparent, to above the bandgap, where the medium is highly reflective and opaque. Thus, knowledge of its location is important. Appendix 4 lists the bandgaps of a wide variety of optical materials. To characterize a medium within the region of transparency requires an understanding of the mechanisms of low-level absorption and scattering. These mechanisms are classified as intrinsic or extrinsic. Intrinsic properties are the fundamental properties of a perfect material, caused by lattice vibrations, electronic transitions, and so on, of the atoms composing the material.

scholarly journals Active Nanophotonics: Surface Polariton‐Like s‐Polarized Waveguide Modes in Switchable Dielectric Thin Films on Polar Crystals (Advanced Optical Materials 5/2020)

2020 ◽  
Vol 8 (5) ◽  
pp. 2070018 ◽  
Author(s):  
Nikolai Christian Passler ◽  
Andreas Heßler ◽  
Matthias Wuttig ◽  
Thomas Taubner ◽  
Alexander Paarmann
Keyword(s):  
Thin Films ◽  
Optical Materials ◽  
Surface Polariton ◽  
Dielectric Thin Films ◽  
Polar Crystals ◽  
Waveguide Modes

Ion Beam Processing of Optical Materials

1988 ◽  
Vol 129 ◽  
Author(s):  
F. L. Williams ◽  
L. L. Boyer ◽  
W. Reicher ◽  
J. J. McNally ◽  
G. A. Al-Jumaily ◽  
...  
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Packing Density ◽  
Optical Materials ◽  
Ion Beam ◽  
Film Material ◽  
Ion Beam Sputtering ◽  
Beam Sputtering ◽  
Optical And Mechanical Properties ◽  
Deposition Techniques

ABSTRACTWe have deposited thin films of optical materials using ion beam sputtering and ion assisted deposition techniques. It is possible to obtain good quality film material deposited on substrates at temperatures lower than normally required. Ion assisted deposition influences film stoichiometry and packing density, which in turn determine optical and mechanical properties of the film material. We discuss two general indicators which appear helpful in predicting the degree to which these occur.

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