Please select an element from the following periodic table to start your search of Database of Optical Constants.
Group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |
Period | |||||||||||||||||||
1 | 1 H |
2 He |
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2 | 3 Li |
4 Be |
5 B |
6 C |
7 N |
8 O |
9 F |
10 Ne |
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3 | 11 Na |
12 Mg |
13 Al |
14 Si |
15 P |
16 S |
17 Cl |
18 Ar |
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4 | 19 K |
20 Ca |
21 Sc |
22 Ti |
23 V |
24 Cr |
25 Mn |
26 Fe |
27 Co |
28 Ni |
29 Cu |
30 Zn |
31 Ga |
32 Ge |
33 As |
34 Se |
35 Br |
36 Kr |
|
5 | 37 Rb |
38 Sr |
39 Y |
40 Zr |
41 Nb |
42 Mo |
43 Tc |
44 Ru |
45 Rh |
46 Pd |
47 Ag |
48 Cd |
49 In |
50 Sn |
51 Sb |
52 Te |
53 I |
54 Xe |
|
6 | 55 Cs |
56 Ba |
* La |
72 Hf |
73 Ta |
74 W |
75 Re |
76 Os |
77 Ir |
78 Pt |
79 Au |
80 Hg |
81 Tl |
82 Pb |
83 Bi |
84 Po |
85 At |
86 Rn |
|
7 | 87 Fr |
88 Ra |
** Ac |
104 Rf |
105 Db |
106 Sg |
107 Bh |
108 Hs |
109 Mt |
110 Ds |
111 Rg |
112 Uub |
113 Uut |
114 Uuq |
115 Uup |
116 Uuh |
117 Uus |
118 Uuo |
|
*Lanthanoids | 57 La |
58 Ce |
59 Pr |
60 Nd |
61 Pm |
62 Sm |
63 Eu |
64 Gd |
65 Tb |
66 Dy |
67 Ho |
68 Er |
69 Tm |
70 Yb |
71 Lu |
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**Actinoids | 89 Ac |
90 Th |
91 Pa |
92 U |
93 Np |
94 Pu |
95 Am |
96 Cm |
97 Bk |
98 Cf |
99 Es |
100 Fm |
101 Md |
102 No |
103 Lr |
You can also choose a category in which you are interested from the following table for your search of Database of Optical Constants.
- Oxides
- II-VI Compounds
- Photoresist
- Metals
- III-V CompoundsMetals
- Polymer-Polyimide
- Glasses
- Silicon and Its Compounds
- VUV-DUV-Infrared
- Nitrides
- Aluminum and Its Compounds
- Thermo-Optical
- Fluorides
- Germanium and Its Compounds
- Miscellaneous
Optical constants or dielectric constants are not constant. They are functions of wavelength and physical states such as physical density, crystallinity, grain size and orientation, etc. The most obvious case is when you compare thin film with bulk materials. Therefore, it is critical to have your own materials measured under every condition to learn the true optical constants for the particular materials. The Database of Optical Constants (we also call it NK Database) established by us is only for your reference. It is a good idea to learn the general dispersion behaviors for materials, which in turn will help you develop optical models to study optical properties of the materials processed under your specific processing conditions. But if you directly apply these data to your design, you do it at your own risk. We recommend that you always measure optical properties by yourself. When you need help, we are here to provide you various advanced spectroscopic ellispometers, reflectometers, microspectrophtometer tools and also professional Analytical Service for such purpose.
TFProbe NK Tables (or called NK database) program has been released. You are welcome to download setup package. It is free! However you'll need a serial number (SN) to complete setup. Please contact us to get SN before you run installation. Below is the link to download installation package:
TFProbe NK Tables Installation Package
In the near future, we'll update the measurement technique, dispersion expressions and principles here for a knowledge base. We hope this website become a starting point for most of the new comers in the ellipsometry field. If you have any comments or suggestions on our Database of Optical Constants, please feel free to let us know.