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<!DOCTYPE html> <html lang="en"> <head> <!-- Basic Page Needs ================================================== --> <meta charset="utf-8"> <!--[if IE]><meta http-equiv="x-ua-compatible" content="IE=9" /><![endif]--> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Infrawave Optical</title> <!-- Favicons ================================================== --> <link rel="shortcut icon" href="img/favicon.PNG" type="image/x-icon"> <!-- Bootstrap --> <link rel="stylesheet" type="text/css" href="css/bootstrap.css"> <link rel="stylesheet" type="text/css" href="fonts/font-awesome/css/font-awesome.css"> <link rel="stylesheet" type="text/css" href="fonts/icons/flaticon.css"> <!-- Nivo Lightbox ================================================== --> <link rel="stylesheet" href="css/nivo-lightbox.css" > <link rel="stylesheet" href="css/nivo_lightbox_themes/default/default.css"> <!-- Slider ================================================== --> <link href="css/owl.carousel.css" rel="stylesheet" media="screen"> <link href="css/owl.theme.css" rel="stylesheet" media="screen"> <!-- Stylesheet ================================================== --> <link rel="stylesheet" type="text/css" href="css/style.css"> <link rel="stylesheet" type="text/css" href="css/prettyPhoto.css"> <link rel="stylesheet" type="text/css" href="css/responsive.css"> <!-- Google Font ================================================== --> <link href='http://fonts.googleapis.com/css?family=Montserrat:400,700' rel='stylesheet' type='text/css'> <link href='http://fonts.googleapis.com/css?family=Muli:300,400,300italic,400italic' rel='stylesheet' type='text/css'> <link href='http://fonts.googleapis.com/css?family=Montserrat+Subrayada:400,700' rel='stylesheet' type='text/css'> <link href='http://fonts.googleapis.com/css?family=Raleway:500,600,700,100,800,900,400,200,300' rel='stylesheet' type='text/css'> <script type="text/javascript" src="js/modernizr.custom.js"></script> </head> <body> <!-- Top Navigation ========================--> <nav id="top-menu"> <?php include 'include/topheader.php'?> </nav> <!-- Main Navigation ========================--> <div id="sticky-anchor"></div> <nav id="main-menu" class="navbar navbar-default"> <?php include 'include/header.php';?> </nav> <!-- Page Header ========================--> <div id="en-header"> <div class="container"> <h2 class="pull-left">Material</h2> <ol class="breadcrumb pull-right"> <li><a href="./">Home</a></li> <li><a href="">Material MgF2 </a></li> </ol> </div> </div> <!-- Page Content ==================================--> <div id="en-content"> <div class="container"> <div class="row"> <!-- Left Content 4 Cols --> <div class="col-sm-12 col-md-12"> <div class="section-title text-left"> <!-- Left Section Title --> <h2>Material MgF2</h2> <hr> <p class="MgF2"> Magnesium fluoride is transparent over an extremely wide range of wavelengths. The effective transmission range is 0.11 µm - 7.5 µm(ultraviolet to infrared). Irradiation does not lead to color centers. Magnesium fluoride is a rugged, hard material which is resistant to thermal and mechanical shock. Considerable mechanical shock is needed to cause cleavage which is near perfect when it occurs. The natural form of MgF2 is known as Sellaite. Magnesium fluoride is a positive birefringent crystal grown normally to 135 mm diameter by vacuum Stockbager technique, seeding along the C-axis. Thin layers of MgF2 are frequently applied to the surfaces of optical elements as part of optical coatings such as anti-reflective coatings. </p> </div> </div> <!-- Right Content 8 Cols --> </div> <hr> <div class="Calcium_Fluoride"> <div class="fulldiv"> <div class="PARAMETER"> <h3> BASE PROPERTIES :</h3> </div> <table class="table table-condensed"> <tbody> <tr> <th>PARAMETER</th> <th>VALUE</th> </tr> <tr> <td></td> <td></td> </tr> <tr> <th>OPTICAL</th> <td> </td> </tr> <tr> <td>Transmission Range</td> <td> 0.11 to 7.5 microns</td> </tr> <tr> <td>Refractive Index </td> <td> N0=1.3836 Ne=1.3957 at 0.405 microns</td> </tr> <tr> <td>Reflection Loss</td> <td> 11.2% at 0.12 microns (2 surfaces)</td> </tr><tr> <td>Restrahlen Peak</td> <td> 20 microns</td> </tr> <tr> <td>dN/dT</td> <td> +2.3 and +1.7 x 10-6e/ °C at 0.4 microns</td> </tr> <tr> <td></td> </tr> <tr> <th>PHYSICAL </th> <td> </td> </tr> <tr> <td>Density</td> <td>3.177 g/cm3</td> </tr> <tr> <td>Melting Point </td> <td>1255 °C</td> </tr> <tr> <td>Thermal Conductivity</td> <td> 0.3 W/(m K) at 27 °C</td> </tr><tr> <td>Thermal Expansion</td> <td> 13.7and 8.48 x 10-6e/ °C</td> </tr> <tr> <td>Hardness</td> <td>Knoop 415 kg/mm2</td> </tr> <tr> <td>Specific Heat Capacity, cal/(g K) at 298 K at 1700 K</td> <td>0.24 0.362</td> </tr> <tr> <td>Dielectric Constant</td> <td>4.87 parallel and 5.45 perpendicular</td> </tr> <tr> <td>Young's Modulus (E)</td> <td>138.5 GPa</td> </tr> <tr> <td>Shear Modulus (G)</td> <td> 54.66 GPa</td> </tr> <tr> <td>Bulk Modulus (K)</td> <td>101.32 GPa</td> </tr> <tr> <td>Elastic Coefficients </td> <td>C11=140.2 C12=89.5 C44=56.8, C33=204.7 C13=62.9 C66=95.7</td> </tr> <tr> <td>Apparent Elastic Limit</td> <td>49.64 MPa</td> </tr> <tr> <td>Poisson Ratio </td> <td>0.276</td> </tr> <tr> <td></td> <td></td> </tr> <tr> <th>CHEMICAL</th> <td> </td> </tr> <tr> <td>Solubility</td> <td><0.0002 g/100g water at 0 °C</td> </tr> <tr> <td>Molecular Weight </td> <td> 62.32</td> </tr> <tr> <td>Class/Structure</td> <td>Tetragonal, can cleave on C-axis</td> </tr> </tbody> </table> </div> <br> <table class="table table-bordered" style="border-spacing: 2px;border-collapse: inherit;"> <tbody> <h4>REFRACTIVE INDEX :</h4> <tr> <th>Wavelength, µm</th> <td>0.20</td> <td>0.23</td> <td>0.27</td> <td>0.34</td> <td>0.56</td> </tr> <tr> <th>Refractive Index (ne)</th> <td>1.43</td> <td>1.42</td> <td>1.41</td> <td>1.40</td> <td>1.39</td> </tr> <tr> <th>Refractive Index (no)</th> <td>1.42</td> <td>1.41</td> <td>1.40</td> <td>1.39</td> <td>1.38</td> </tr> </tbody> </table> </div> <div class="col-md-12 col-sm-12 col-xs-12 col-lg-12"> <div class="MgF2Curve"> <img src="img/material/MgF2Curve.JPG" > </div> </div> </div> </div> </div> <!-- End Content --> <!-- CTA ========================--> <!-- Footer Area --> <div id="en-footer"> <?php include 'include/footer.php';?> </div> <!-- jQuery (necessary for Bootstrap's JavaScript plugins) --> <script type="text/javascript" src="js/jquery.1.11.1.js"></script> <!-- Include all compiled plugins (below), or include individual files as needed --> <script type="text/javascript" src="js/bootstrap.js"></script> <script type="text/javascript" src="js/owl.carousel.js"></script><!-- Owl Carousel Plugin --> <script type="text/javascript" src="js/nivo-lightbox.min.js"></script><!-- LightBox Nivo --> <!-- Portfolio Filter --> <script type="text/javascript" src="js/jquery.isotope.js"></script> <script type="text/javascript" src="js/imagesloaded.js"></script> <!-- Javascripts ================================================== --> <script type="text/javascript" src="js/main.js"></script> <script type="text/javascript" src="js/jquery.prettyPhoto.js"></script> <!-- ADD Switcher --> </div> <!-- END Switcher --> <!-- Demo Switcher JS --> <script type="text/javascript" src="js/fs wit.js"></script> </body> </html>

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