Performing optical measurements in solids under variable uniaxial stress and temperature: a system

Area of Science:

• Materials Science
• Mechanical Engineering
• Solid State Physics

Background:

• Conventional stress application apparatus have limitations in achieving extreme stress ranges.
• Optical measurements in solids require specialized equipment for precise stress application.

Purpose of the Study:

• To present a modified apparatus capable of achieving unprecedented levels of uniaxial stress.
• To demonstrate the apparatus's dual capability for both compressive and tensile stress application.
• To highlight the system's utility for optical measurements under varying temperatures.

Main Methods:

• Modification of a standard stress apparatus.
• Simple rearrangement for switching between compressive and tensile stress modes.
• Integration with optical measurement techniques.

Main Results:

• The modified apparatus successfully delivers uniaxial compressive stress exceeding previously attained ranges.
• The system can be easily reconfigured to apply uniaxial tensile stress.
• The apparatus supports optical measurements in solids at temperatures from 77 K to room temperature.

Conclusions:

• The developed apparatus offers enhanced capabilities for materials characterization under extreme stress conditions.
• Its versatility in stress application and temperature range makes it valuable for solid-state optical studies.