Ø System basic introduction:

This system excites ruby with a 405nm laser and collects its fluorescence signal at a wavelength of 694nm (or higher). The device can be customized and processed according to the actual needs of the user, and the conventional product is the portable version on the left side of the picture. The principle of the ruby fluorescence standard pressure system is that the wavelength position of the R1 fluorescence line of ruby will change accordingly under different pressures (694.3nm at room temperature and pressure). Based on the wavelength position, the pressure value can be calculated. The advantage of this method is that it has a fast measurement speed and can measure pressures up to 70GPa.

Ø Parameter indicators:

Laser: 405nm semiconductor laser with an output power of 20mW

Lighting source: Fiber optic LED white light (adjustable brightness)

Objective: 10X objective, working distance 30.5mm, customizable

Spectrometer: wavelength range: 672-731nm

Resolution:<=0.04nm

Adjustable exposure time: 1us-10s

Overall dimensions of the device: 320mm * 200mm * 220mm

Overall weight:~9KG

Calculation of pressure: Built in spectrometer software

Or refer to https://millenia.cars.aps.anl.gov/gsecars/ruby/ruby.htm

Ø There are portable horizontal versions and specific microscope versions available: