Nonlinear Crystal Materials

Transparent crystal materials can hold a wide range of nonlinear properties. For this reason, nonlinear crystal materials are commonly used in a variety of optical applications across many industries, including the semiconductor manufacturing industry. A large number of microprocessors in semiconductor manufacturing operate on a quantum scale, so single crystal silicon is commonly used for the fabrication of semiconductors to avoid malfunction of field effect transistors.

Due to the huge variety of nonlinear properties that crystal materials can hold, it is important to review all the features of the various crystal materials in regards to each planned use of application. The following list showcases some of the range in property that can be seen in nonlinear crystals, which may have significant effects on a system:

  • Magnitude of Effective Nonlinear Coefficient. The magnitude depends directly on the nonlinear tensor components as well as the phase-matching configuration. If the optical intensities are low, this property can be of significant importance.
  • Chromatic Dispersion and Birefringence. These properties of nonlinear crystal fibers determine phase-matching configuration and phase-matching bandwidth.
  • Transparency. All nonlinear crystal materials should have high levels of optical transparency regardless of the wavelength that is required in the application; therefore, low transparency materials should always be avoided.
  • Linear Absorption. Absorption can cause heat production at high powered optical levels, which can create problems with phase-matching as well as thermal lensing, so it’s important that the correct absorption level is selected for each application.
  • Chemical Durability. Some crystal materials are more durable than others. For example, there are crystals that absorb significant amounts of moisture from the air while others actually change chemically when heated in a vacuum chamber for coating.

Properties of nonlinear crystal materials, such as those listed above, must all be taken into consideration when used in any application. Performing the proper research will ensure that each system uses the crystal materials that will work most effectively.

The semiconductor manufacturing industry uses high levels of crystal silicon, which is an artificial material like most nonlinear crystal materials used in other industries. Due to the high level of crystal silicon used for fabrication of semiconductors, the semiconductor manufacturing industry has invested heavily in facilities for manufacturers of silicones.

If you are interested in nonlinear crystal materials for use in your semiconductor manufacturing operations, Shin-Etsu MicroSi can help. As a manufacturer of silicones, we provide high quality, nonlinear crystal silicon and a variety of silicone products for businesses in the semiconductor manufacturing industry. For more information on our semiconductor manufacturing products, please call Shin-Etsu in Phoenix at (480) 893-8898 or contact us online.