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href="/en/tools">Tools</a></li> 77</ul> 78</div> 79</div> 80</nav> 81 82 <div id="content"> 83 <div class="row flex-xl-nowrap"> 84 85 <!-- Side Navi --> 86 <div id="sidebar" class="d-none d-lg-block col-lg-3 order-2 align-self-start"> 87 <ul id="option-contents" class="nav nav-pills flex-column bg-primary-subtle"> 88 <li class="nav-item"><a class="nav-link" href="#f_base">Basic operation</a></li> 89 <li class="nav-item"><a class="nav-link" href="#f_3d">3D chart</a></li> 90 <li class="nav-item"><a class="nav-link" href="#f_monitor">Optical monitor</a></li> 91 <li class="nav-item"><a class="nav-link" href="#f_efi">Electric field intensity</a></li> 92 <li class="nav-item"><a class="nav-link" href="#f_color">Color calculation</a></li> 93 <li class="nav-item"><a class="nav-link" href="#f_mis">Manufacturing error</a></li> 94 <li class="nav-item"><a class="nav-link" href="#f_gd">Group Delay</a></li> 95 <li class="nav-item"><a class="nav-link" href="#f_stack">Stack</a></li> 96 <li class="nav-item"><a class="nav-link" href="#f_back">Reverse side</a></li> 97 <li class="nav-item"><a class="nav-link" href="#f_inhomo">Inhomogeneity</a></li> 98 <li class="nav-item"><a class="nav-link" href="#f_period">Periodic layer</a></li> 99 <li class="nav-item"><a class="nav-link" href="#f_opt">Optimization</a></li> 100 <li class="nav-item"><a class="nav-link" href="#f_nk">n and k analysis</a></li> 101 <li class="nav-item"><a class="nav-link" href="#f_photometer">Spectrometer data</a></li> 102 <li class="nav-item"><a class="nav-link" href="#f_dsp">Dispersion</a></li> 103 <li class="nav-item"><a class="nav-link" href="#f_dspformula">Dispersion formula</a></li> 104 <li class="nav-item"><a class="nav-link" href="#f_misc">Misc calculator</a></li> 105 <li class="nav-item"><a class="nav-link" href="#f_new">Change log</a></li> 106 </ul> 107 108 <!-- Side menu for PC --> 109 <div class="contents-frame mt-2"> 110 <h4>Menu</h4><br> 111 <a href="/en/" class="btn btn-outline-success btn-sm my-1" role="button">Home</a><br> 112<a href="/en/features" class="btn btn-success btn-sm my-1" role="button">Features introduction</a><br> 113<a href="/en/features_new" class="btn btn-outline-success btn-sm my-1" role="button">Change log</a><br> 114<a href="/en/download" class="btn btn-outline-success btn-sm my-1" role="button">Download</a><br> 115<a href="/en/contacts" class="btn btn-outline-success btn-sm my-1" role="button">Support, FAQ</a><br> 116<a href="/en/userpage" class="btn btn-outline-success btn-sm my-1" role="button">Login</a><br> 117<a href="/en/tools" class="btn btn-outline-success btn-sm my-1" role="button">Tools</a><br> 118<a href="/en/info" class="btn btn-outline-success btn-sm my-1" role="button">Notice List</a><br> 119 </div> 120 </div><!-- /#sidebar --> 121 122 <!-- Main Area --> 123 <div class="col-12 col-lg-9 py-lg-3 pl-lg-5 order-1"> 124 125 <nav aria-label="Breadcrumbs"> 126 <ol class="breadcrumb"> 127 <li class="breadcrumb-item"><a href="/en/"><i class="fas fa-home fa-fw"></i></a></li> 128 <li class="breadcrumb-item active" aria-current="page">Features</li> 129 </ol> 130 </nav> 131 132 <!-- Title --> 133 <h1>Features</h1> 134 135 <!-- Main Text --> 136 <h2 id="f_base">Basic operation</h2> 137 138 <p> 139 Slider bars and up / down buttons can be used to quickly change film thickness and film material, and changes are immediately reflected in the graph.<br> 140 Tabbed sheets allow you to overlay up to 20 film design on a graph.<br> 141 <a class="zoom" href="/en/images/feature1_v3_en.gif">
141<img src="/en/images/feature1_v3_en.gif" alt="Basic operation screen"></a><br> 142 </p> 143 144 <h2 id="f_3d">3D chart</h2> 145 146 <p> 147 You can display a 3D graph with xy axes of spectrum and incident angle.<br> 148 You can set the contour lines.<br> 149 It is also possible to rotate and zoom with the mouse.<br> 150 <a class="zoom" href="/en/images/wa3d_v3_en.png"><img src="/en/images/wa3d_v3_en.png" alt="3D chart screen"></a><br> 151 </p> 152 153 <h2 id="f_monitor">Optical monitor</h2> 154 155 <p> 156 Optical monitor simulation that considers the tooling factor and the in situ n and k is possible.<br> 157 All layers information can be displayed simultaneously.<br> 158 <a class="zoom" href="/en/images/evp_v3_en.png"><img src="/en/images/evp_v3_en.png" alt="Optical monitor screen"></a><br> 159 </p> 160 <dl> 161 <dt>Supporting type of monitoring system</dt> 162 <dd> 163 <a class="zoom" href="/en/images/evp3_v3_en.gif"><img src="/en/images/evp3_v3_en.gif" alt="Type of monitoring system"></a><br> 164 </dd> 165 </dl> 166 167 <h2 id="f_efi">Electric field intensity</h2> 168 169 <p> 170 Each polarization of electric field can be displayed.<br> 171 <a class="zoom" href="/en/images/efi_v3_en.png"><img src="/en/images/efi_v3_en.png" alt="Electric field intensity screen"></a><br> 172 The front side and the reverse side electric fields can be displayed simultaneously.<br> 173 <a class="zoom" href="/en/images/efi_back_v3_en.png"><img src="/en/images/efi_back_v3_en.png" alt="Electric field intensity screen(reverse side)"></a><br> 174 </p> 175 176 <h2 id="f_color">Color calculation</h2> 177 178 <p> 179 Color difference can be calculated. For example between the two design or between front side and reverse side.<br> 180 <a class="zoom" href="/en/images/color_v3_en.png"><img src="/en/images/color_v3_en.png" alt="Color calculation screen"></a><br> 181 </p> 182 <dl> 183 <dt>Color system</dt> 184 <dd> 185 XYZxy, CIE L*a*b*, L*C*h, Hunter Lab, L*u*v*, UCS, Whiteness Index, Yellowness Index, sRGB, CIE2000, Dominant Wavelengthã<br> 186 </dd> 187 <dt>Kind of the illuminant</dt> 188 <dd> 189 A, B, C, D50, D55, D65, D75, E, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, ID50, ID65ã<br> 190 You can also register your own light source data as a csv file.<br> 191 </dd> 192 </dl> 193 194 <h2 id="f_mis">Manufacturing error</h2> 195 196 <p> 197 It is used to investigate how much the variation in film thickness, refractive index, and absorption coefficient affects the optical characteristics.<br> 198 <a class="zoom" href="/en/images/mis1_v3_en.png"><img src="/en/images/mis1_v3_en.png" alt="Manufacturing error screen"></a><br> 199 </p> 200 <h3>Monte Carlo simulation of spectral characteristics</h3> 201 <p> 202 <a class="zoom" href="/en/images/mis2_v3_en.png"><img src="/en/images/mis2_v3_en.png" alt="Manufacturing error screen(Wavelength)"></a><br> 203 </p> 204 <h3>Monte Carlo simulation of color</h3> 205 <p> 206 <a class="zoom" href="/en/images/mis3_v3_en.png"><img src="/en/images/mis3_v3_en.png" alt="Manufacturing error screen(Color)"></a><br> 207 </p> 208 <p> 209 You can specify the amount of change for each film thickness, refractive index, and absorption coefficient for each layer.<br> 210 The amount of change can be selected from uniform distribution in absolute value, uniform distribution in%, and normal (Gaussian) distribution (Ï).<br> 211 We use the Mersenne Twister method to generate random numbers.<br> 212 </p> 213 214 <h2 id="f_gd">Group Delay</h2> 215 216 <p> 217 <div class="col-md-6 mx-2"> 218 <table class="table table-sm table-bordered"> 219 <thead> 220 <tr> 221 <th scope="col" colspan="2">Supported Types of Group Delay</th> 222 </tr> 223 </thead> 224 <tbody> 225 <tr> 226 <td>GD</td> 227 <td>Group Delay</td> 228 </tr> 229 <tr> 230 <td>GDD</td> 231 <td>Group Delay Dispersion</td> 232 </tr> 233 <tr> 234 <td>CDC</td> 235 <td>Chromatic Dispersion Coefficient</td> 236 </tr> 237 <tr> 238 <td>TOD</td> 239 <td>Third Order Dispersion</td> 240 </tr> 241 <tr> 242 <td>FOD</td> 243 <td>Fourth Order Dispersion</td> 244 </tr> 245 <tr> 246 <td>5OD</td> 247 <td>Fifth Order Dispersion</td> 248 </tr> 249 </tbody> 250 </table> 251 </div> 252 <div class="col-md-6 mx-2"> 253 <table class="table table-sm table-bordered"> 254 <thead> 255 <tr> 256 <th scope="col">Units</th> 257 </tr> 258 </thead> 259 <tbody> 260 <tr> 261 <td>ps, fs</td> 262 </tr> 263 </tbody> 264 </table> 265 </div> 266 <p> 267 In the calculation of group delay, differentiation also includes the optical constants (the dispersion formulas of n and k).<br> 268 Numerical differentiation (finite difference) with large errors is not used.<br> 269 </p> 270 <a class="zoom" href="/en/images/gd_en.png"><img loading="lazy" src="/en/images/gd_en.png" alt="GD screen"></a><br> 271 </p> 272 273 <h2 id="f_stack">Stack</h2> 274 275 <p> 276 It is possible to calculate the total when the film is attached to each side of multiple substrates (parallel plane substrates).<br> 277 <a class="zoom" href="/en/images/stack_v3_en.png"><img src="/en/images/stack_v3_en.png" alt="Stack screen"></a><br> 278 </p> 279 280 <h2 id="f_back">Reverse side</h2> 281 282 <p> 283 The results of front side and reverse side can be displayed simultaneously.<br> 284 <a class="zoom" href="/en/images/back_v3_en.png">
284<img src="/en/images/back_v3_en.png" alt="Simultaneous display of spectral characteristics on the front and back sides"></a><br> 285 </p> 286 287 <h2 id="f_inhomo">Inhomogeneity</h2> 288 289 <p> 290 If the mouse pointer is placed for a while on the "Inhomo..." cell, then the Inhomogeneity profile are displayed on the popup window.<br> 291 <a class="zoom" href="/en/images/inh1_v3_en.png"><img src="/en/images/inh1_v3_en.png" alt="Inhomogeneity preview screen"></a><br> 292 </p> 293 294 <h2 id="f_period">Periodic layer</h2> 295 296 <p> 297 Periodic layer can be displayed very clearly.<br> 298 The magnification of the thickness each periodic layer can be set.<br> 299 <a class="zoom" href="/en/images/period_v3_en.png"><img src="/en/images/period_v3_en.png" alt="Periodic layer screen"></a><br> 300 </p> 301 302 <h2 id="f_opt">Optimization</h2> 303 304 <h3>Optimization(1) Standard mode</h3> 305 <p> 306 Standard mode has three search methods. Local search, global search and needle search.<br> 307 You can select the spectrometer data as the target, then simulate the difference between design and measured values easily.<br> 308 </p> 309 <dl> 310 <dt>Local search</dt> 311 <dd> 312 Local search is used Levenberg-Marquardt Method for optimization thickness.<br> 313 </dd> 314 <dt>Global search</dt> 315 <dd> 316 Global search is used Simulated Annealing Method and Levenberg-Marquardt Method.<br> 317 </dd> 318 <dt>Needle search</dt> 319 <dd> 320 Needle search works by adding the needle-like layers into the design. After the needle-like layers have been added, the local search is used to optimization. 321 </dd> 322 </dl> 323 324 <h3>Optimization(2) Free-hand mode</h3> 325 When you trace with the mouse while holding down the left button near the selected series, then the shape of series is deformed. Optimize will be started automatically when you release the left button.<br> 326 327 <h2 id="f_nk">n and k calculation for substrate and film</h2> 328 329 <p> 330 This function calculates n and k of a substrate or monolayer film from the measured values of spectral reflectance and spectral transmittance.<br> 331 </p> 332 <ol> 333 <li class="mt-1">Calculate refractive index of substrate without absorption<br> 334 Calculate the refractive index of a substrate without films. It is used when there is no absorption on the substrate. A single-sided matte substrate or double-sided polished substrate is required. 335 </li> 336 <li class="mt-2">Calculate refractive index, absorption coefficient and internal transmittance of substrate<br> 337 Calculate the refractive index of a substrate without films. It is used when substrate has absorption. Both single-sided matte substrate and double-sided polished substrate are required. 338 </li> 339 <li class="mt-2">n and k analysis of monolayer film<br> 340 From the spectral reflectance and spectral transmittance, n, k and film thickness (d) of the film are analyzed by curve fitting to the dispersion formula.<br> 341 Added an option to analyze only normal dispersion (dispersion in which the refractive index increases as the wavelength becomes shorter).<br> 342 It is now possible to calculate each measurement data of "front reflection", "back reflection", and "transmission" even with different wavelengths and different measurement points.</li> 343 <li class="mt-2">Calculate n and k of monolayer metal film<br> 344 Calculate n and k of the metal film from the front surface reflectance and the back-surface reflectance. The substrate must be thick enough and have a zero transmittance.</li> 345 </ol> 346 347 <h2 id="f_photometer">Spectrometer data</h2> 348 349 <p> 350 The spectrophotometer measured data files can be read on the chart.<br> 351 If the measured data is relative value, you can convert the relative value into absolute value.<br> 352 <a class="zoom" href="/en/images/photometer_v3_en.png"><img src="/en/images/photometer_v3_en.png" alt="Spectrometer data on the chart screen"></a><br> 353 </p> 354 <dl> 355 <dt>Supported file format</dt> 356 <dd> 357 Hitachi UV-Solutions files and UV1 files(*.UDSS, *.UDS, *.UDA, *.UV1),<br> 358 Shimadzu SPC files,<br>
359 Olympus-USPM files(*.dat, *.csv),<br> 360 Jasco JWS files,<br> 361 Ocean-Optics OOi-Base32 files,<br> 362 csv files,<br> 363 tab separated text files.<br> 364 </dd> 365 </dl> 366 367 <h2 id="f_dsp">Dispersion</h2> 368 369 <h3>Substrate</h3> 370 <dl> 371 <dt>1381 kinds of substrate are registered.</dt> 372 <dd> 373 SCHOTT, OHARA, HOYA, SUMITA, HIKARI, CDGM 374 <br> 375 APEL, ZEONEX, PMMA, Polycarbonate, etc.<br> 376 You can also register your own data. 377 </dd> 378 </dl> 379 380 <h3>Film material</h3> 381 <dl> 382 <dt>The following 33 types of materials are registered.</dt> 383 <dd> 384 Ag, Al2O3, AL, Au, Cr, Cu, H2, H4, LaF3, M3, M3-RT, MgF2, Nb2O5, Nb2O5-RT, OH5, OH5-RT, OS50, OS50-RT, SiO2, Ta2O5, Ta2O5-RT, Ti, TiO2, Zn, ZnS, ZrO2, Cytop<br> 385 </dd> 386 <dd> 387 Al2O3(KTM), HfO2(KTM), LaF3(KTM), Ti3O5(KTM), ZrO2(KTM), ZRT2(KTM)<br> 388 KTM: <a href="http://www.hakumaku.com/" target="_blank" rel="noopener noreferrer">Kyoto Thin-Film Materials Institute</a> 389 </dd> 390 <dd> 391 You can also register your own data. 392 </dd> 393 </dl> 394 395 <h2 id="f_dspformula">Kind of the dispersion formula</h2> 396 <h3>Dispersion formulas of refractive index n</h3> 397 <ul class="list-group list-group-flush"> 398 <li class="list-group-item"> 399 Sellmeier<br> 400 \[n(λ) = \sqrt{ 1 + {A_0λ^2 \over λ^2-A_3} + {A_1λ^2 \over λ^2-A_4} + {A_2λ^2 \over λ^2-A_5} } \] 401 </li> 402 <li class="list-group-item"> 403 Sellmeier2<br> 404 \[n(λ) = \sqrt{ 1 + A_0 + {A_1λ^2 \over λ^2-{A_3}^2} + {A_2 \over λ^2-{A_4}^2} } \] 405 <div class="text-center">* A<sub>2</sub> does not have λ<sup>2</sup>.</div><br> 406 </li> 407 <li class="list-group-item"> 408 Sellmeier3<br> 409 \[n(λ) = \sqrt{ 1 + {A_0λ^2 \over λ^2-A_4} + {A_1λ^2 \over λ^2-A_5} + {A_2λ^2 \over λ^2-A_6} + {A_3λ^2 \over λ^2-A_7} } \] 410 </li> 411 <li class="list-group-item"> 412 Sellmeier4<br> 413 \[n(λ) = \sqrt{ A_0 + {A_1λ^2 \over λ^2-A_3} + {A_2λ^2 \over λ^2-A_4} } \] 414 </li> 415 <li class="list-group-item"> 416 Sellmeier5<br> 417 \[n(λ) = \sqrt{ 1 + {A_0λ^2 \over λ^2-A_5} + {A_1λ^2 \over λ^2-A_6} + {A_2λ^2 \over λ^2-A_7} + {A_3λ^2 \over λ^2-A_8} + {A_4λ^2 \over λ^2-A_9} } \] 418 </li> 419 <li class="list-group-item"> 420 SellmeierT1<br> 421 \[n(λ) = \sqrt{ A_0 + {A_1λ^2 \over λ^2-A_2} } \] 422 </li> 423 <li class="list-group-item"> 424 SellmeierT2<br> 425 \[n(λ) = \sqrt{ A_0 + {A_1λ^2 \over λ^2-A_2} + A_3λ^2 } \] 426 </li> 427 <li class="list-group-item"> 428 SellmeierX1<br> 429 \[n(λ) = \sqrt{ 1 + {A_0λ^2 \over λ^2-{A_3}^2} + {A_1λ^2 \over λ^2-{A_4}^2} + {A_2λ^2 \over λ^2-{A_5}^2} } \] 430 </li> 431 <li class="list-group-item"> 432 General1<br> 433 \[n(λ) = \sqrt{ A_0 + A_1λ^2 + {A_2 \over λ^2} + {A_3 \over λ^4} + {A_4 \over λ^6} + {A_5 \over λ^8} + A_6λ^4 } \] 434 </li> 435 <li class="list-group-item"> 436 General2 (Old Schott)<br> 437 \[n(λ) = \sqrt{ A_0 + A_1λ^2 + {A_2 \over λ^2} + {A_3 \over λ^4} + {A_4 \over λ^6} + {A_5 \over λ^8} } \] 438 </li> 439 <li class="list-group-item"> 440 Cauchy<br> 441 \[n(λ) = A_0 + {A_1 \over λ^2} + {A_2 \over λ^4} \] 442 </li> 443 <li class="list-group-item"> 444 Hartmann1<br> 445 \[n(λ) = A_0 + {A_1 \over λ - A_2} \] 446 </li> 447 <li class="list-group-item"> 448 Hartmann2<br> 449 \[n(λ) = A_0 + {A_1 \over (λ - A_2)^2} \] 450 </li> 451 <li class="list-group-item"> 452 Herzberger<br> 453 \[n(λ) = A_0 + A_1 λ^2 + {A_2 \over (λ^2 - 0.168^2)} + {A_3 \over (λ^2 - 0.168^2)^2} \] 454 </li> 455 <li class="list-group-item"> 456 Herzberger2<br> 457 \[n(λ) = A_0 + {A_1 \over (λ^2 - 0.028)} + {A_2 \over (λ^2 - 0.028)^2} + A_3 λ^2 + A_4 λ^4 + A_5 λ^6 \] 458 </li> 459 <li class="list-group-item"> 460 QUAD<br> 461 \[n(λ) = A_0 + {A_1 \over λ^2} \] 462 </li> 463 <li class="list-group-item"> 464 QUADSK<br> 465 \[n(λ) = A_0 + A_1 λ + A_2 λ^2 \] 466 </li> 467 <li class="list-group-item"> 468 Conrady<br> 469 \[n(λ) = A_0 + {A_1 \over λ} + {A_2 \over λ^{3.5}} \] 470 </li> 471 <li class="list-group-item"> 472 Handbook1 (Handbook of Optics)<br> 473 \[n(λ) = \sqrt{ A_0 + {A_1 \over (λ^2 - A_2)} - A_3λ^2 } \] 474 </li> 475 <li class="list-group-item"> 476 Handbook2 (Handbook of Optics)<br> 477 \[n(λ) = \sqrt{ A_0 + { A_1 λ^2 \over (λ^2 - A_2)} - A_3λ^2 } \] 478 </li> 479 <li class="list-group-item"> 480 Extended (ZEMAX)<br> 481 \[n(λ) = \sqrt{ A_0 + A_1λ^2 + {A_2 \over λ^2} + {A_3 \over λ^4} + {A_4 \over λ^6} + {A_5 \over λ^8} + {A_6 \over λ^{10}} + {A_7 \over λ^{12}} } \] 482 </li> 483 <li class="list-group-item"> 484 Extended2 (ZEMAX)<br> 485 \[n(λ) = \sqrt{ A_0 + A_1λ^2 + {A_2 \over λ^2} + {A_3 \over λ^4} + {A_4 \over λ^6} + {A_5 \over λ^8} + A_6 λ^4 + A_7 λ^6 } \] 486 </li> 487 <li class="list-group-item"> 488 Extended3 (ZEMAX)<br> 489 \[n(λ) = \sqrt{ A_0 + A_1λ^2 + A_2λ^4 + {A_3 \over λ^2} + {A_4 \over λ^4} + {A_5 \over λ^6} + {A_6 \over λ^8} + {A_7 \over λ^{10}} + {A_8 \over λ^{12}} } \] 490 </li> 491 <li class="list-group-item"> 492 Buchdahl<br> 493 \[n(λ) = A_0 + A_1 ω(λ) + A_2 ω(λ)^2 \] 494 \[ω(λ) = { λ - A_3 \over 1 + 2.5(λ - A_3) } \] 495 </li> 496 <li class="list-group-item"> 497 DRUDE<br> 498 \[{n^2}(λ) - {k^2}(λ) = A_0 - { A_1 {A_2}^2 λ^2 \over λ^2 + {A_2}^2 } \] 499 </li> 500 <li class="list-group-item"> 501 LorentzianK<br> 502 \[n(λ) = \sqrt{ A_0 + {k^2}(λ) + A_1 λ^2 {(λ^2 - {A_2}^2) \over (λ^2 - {A_2}^2)^2 + {A_3}^2 λ^2 } } \] 503 </li> 504 <li class="list-group-item"> 505 Forouhi-Bloomer<br> 506 \[n(E) = n(∞) + {B_0E+C_0 \over E^2 - BE + C} \] 507 \[B_0 = {A \over Q}{({-B^2 \over 2} + E_gB - {E_g}^2 + C)} \] 508 \[C_0 = {A \over Q}{\left(({E_g}^2 + C){B \over 2}-2E_gC\right)} \] 509 \[Q = {1 \over 2}{(4C-B^2)}^{1 \over 2} \] 510 \[E= {{hc} \over λ} \] 511 <div class="text-center"> 512 h: Planck's constant, c: Light speed, The unit of E: eV.<br> 513 n(â), Eg, A, B, C: Material constants(parameters of the dispersion formula) 514 </div> 515 </li> 516 <li class="list-group-item"> 517 A<sub>0</sub>, A<sub>1</sub>, A<sub>2</sub>, A<sub>3</sub>, A<sub>4</sub>, A<sub>5</sub>, A<sub>6</sub>, A<sub>7</sub>, A<sub>8</sub>, A<sub>9</sub>: material constants.<br> 518 The unit of λ is μm (excluding Forouhi-Bloomer). 519 </li> 520 </ul> 521 522 <h3>Dispersion formulas of absorption coefficient k</h3> 523 <ul class="list-group list-group-flush"> 524 <li class="list-group-item"> 525 Sellmeier<br> 526 \[k(λ) = {\biggl[ n(λ) \biggl(B_0 λ + {B_1 \over λ} + {B_2 \over λ^3} \biggr) \biggr]}^{-1} \] 527 </li> 528 <li class="list-group-item"> 529 Cauchy<br> 530 \[k(λ) = B_0 + {B_1 \over λ^2} + {B_2 \over λ^4} \] 531 </li> 532 <li class="list-group-item"> 533 Exponential<br> 534 \[k(λ) = B_0 \cdot exp(B_1 λ^{-1}) \] 535 </li> 536 <li class="list-group-item"> 537 QUADSK<br> 538 \[k(λ) = B_0 + B_1 λ + B_2 λ^2 \] 539 </li> 540 <li class="list-group-item"> 541 DRUDE<br> 542 \[2n(λ)k(λ) = { A_1 A_2 λ^3 \over λ^2 + {A_2}^2 } \] 543 </li> 544 <li class="list-group-item"> 545 LorentzianK<br> 546 \[k(λ) = \sqrt{ {0.5 \over n(λ)} \cdot {A_1 A_3 λ^3 \over (λ^2 - {A_2}^2)^2 + {A_3}^2 λ^2 } } \] 547 </li> 548 <li class="list-group-item"> 549 Forouhi-Bloomer<br> 550 \[k(E) = {A(E-E_g)^2 \over {E^2 - BE + C}} \] 551 \[E= {{hc} \over λ} \] 552 <div class="text-center"> 553 h: Planck's constant, c: Light speed, The unit of E: eV.<br> 554 Eg, A, B, C: Material constants(parameters of the dispersion formula) 555 </div> 556 </li> 557 <li class="list-group-item"> 558 B<sub>0</sub>, B<sub>1</sub>, B<sub>2</sub>: material constants.<br> 559 The unit of λ is μm (excluding Forouhi-Bloomer). 560 </li> 561 </ul> 562 563 <h2 id="f_misc">Misc calculator</h2> 564 565 <p> 566 The misc calculator is the simple calculation tool of thin film. 567 </p> 568 <h3>Refractive index</h3> 569 <p> 570 Calculate refractive index from the reflectance at the QWOT peak measured with the spectrophotometer.<br> 571 <a class="zoom" href="/en/images/misc1_v3_en.png"><img src="/en/images/misc1_v3_en.png" alt="Refractive index screen"></a><br> 572 </p> 573 <h3>Two surface</h3> 574 <p> 575 Calculate the total reflectance at the two surfaces when incoherent.<br> 576 <a class="zoom" href="/en/images/misc2_v3_en.png"><img src="/en/images/misc2_v3_en.png" alt="Two surface screen"></a><br> 577 </p> 578 <h3>Equivalent film</h3> 579 <p> 580 Calculate the thickness when dividing a QWOT layer into three layers.<br> 581 <a class="zoom" href="/en/images/misc3_v3_en.png"><img src="/en/images/misc3_v3_en.png" alt="Equivalent film screen"></a><br> 582 </p> 583 584 <h2 id="f_new">Change log</h2> 585 586 <p> 587 <a href="/en/features_new" class="btn btn-outline-success btn-sm" role="button">Go to Change log <i class="fas fa-arrow-circle-right"></i></a><br> 588 </p> 589 590 <!-- Footer menu for mobile --> 591 <div class="d-lg-none"> 592 <h2>Menu</h2> 593 <div class="contents-frame text-center d-lg-none"> 594 <a href="/en/" class="btn btn-outline-success btn-sm my-1" role="button">Home</a><br> 595<a href="/en/features" class="btn btn-success btn-sm my-1" role="button">Features introduction</a><br> 596<a href="/en/features_new" class="btn btn-outline-success btn-sm my-1" role="button">Change log</a><br> 597<a href="/en/download" class="btn btn-outline-success btn-sm my-1" role="button">Download</a><br> 598<a href="/en/contacts" class="btn btn-outline-success btn-sm my-1" role="button">Support, FAQ</a><br> 599<a href="/en/userpage" class="btn btn-outline-success btn-sm my-1" role="button">Login</a><br> 600<a href="/en/tools" class="btn btn-outline-success btn-sm my-1" role="button">Tools</a><br> 601<a href="/en/info" class="btn btn-outline-success btn-sm my-1" role="button">Notice List</a><br> 602 </div> 603 </div> 604 605 </div><!-- Main Area --> 606 </div><!-- .row --> 607 </div><!-- #content --> 608 609 </div><!-- .container --> 610 611 <p class="PageTopBtn" id="PageTopBtn"><i class="fas fa-chevron-circle-up"></i></p> 612<div class="content"> 613<footer class="footer_contents"> 614<p> 615<a href="/en/privacy">Privacy Policy, Terms of Use</a> 616</p> 617<address>©
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