Optical properties
| Remarks | ||
|---|---|---|
| Infrared refractive index n(λ) | n = 3.42 | 300K |
| n = 3.38(1 + 3.9·10-5·T) | 77K < T < 400 K | |
| Radiative recombination coefficient | 1.1 x 10-14 cm3 s-1 | 300 K |
| Optical photon energy | 63 meV | 300 K |
What are the four optical properties?
Among the optical properties, refraction, absorption, reflection, and scattering of light are the most important.
What is the hardness of silicon?
Hardnesses of the elements (data page)
| number | symbol | Mohs hardness |
|---|---|---|
| 11 | Na | 0.5 |
| 12 | Mg | 2.5 |
| 13 | Al | 2.75 |
| 14 | Si | 6.5 |
What are examples of optical properties?
The optical properties of matter include:
- Refractive index.
- Dispersion.
- Transmittance and Transmission coefficient.
- Absorption.
- Scattering.
- Turbidity.
- Reflectance and Reflectivity (reflection coefficient)
- Albedo.
Why is high reflectivity important optical property?
Head lights, lampshades of light sources – important is high reflectivity to prevent light loss – especially spectral angular / angular hemispherical reflectivity.
What is the property of silicon?
In this chapter, properties of silicon are explained in detail. Silicon is an abundant element found in the Earth’s crust in various compounds….1.1. Properties of Silicon.
| Atomic number of Si | 14 | |
|---|---|---|
| Si atoms | 5×1022 | atoms*cm−3 |
| Melting point | 1687 | K |
| Specific density | 2.329 | g*cm−3 at 298 K |
| Specific density (liquid) | 2.57 | g*cm−3 |
