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Optiprexx PLS Green Laser with Interlock

Advanced photoluminescence system aimed at ultra-high pressure ruby manometry
  • The Optiprexx PLS is a turnkey system that performs ruby photo-luminescence measurements enabling the determination of the in-situ pressure in diamond anvil cells
  • The system can provide an accuracy of +/- 0.1 GPa or better on ruby fluorescence pressure determination
  • Included in the Optiprexx PLS are the laser, transfer optics, spectrometer, optical observation (microscope) and xyz positioning stages and data acquisition software (High Pressure Manager)
  • High Pressure Manager (HPM): A Python-based software designed by Almax-easyLab with real time pressure determination
  • The Optiprexx PLS is easy to use and has a very small footprint. An optional CMOS camera is available
  • YouTube video

SKU: A80001

For more info, quotation or call: Contact us


The Optiprexx PLS is a stand-alone turnkey system that performs ruby photoluminescence measurements enabling the determination of the in-situ pressure in diamond anvil cells. The system includes a green laser (532 nm @ 50 mW), spectrometer, transfer optics, optical observation stage, XYZ positioning stage and advanced data acquisition software. When measuring pressure above 50 GPa, we recommend to select the Optiprexx PLS – Blue Laser option to maximize the excitation of the Ruby and optimize the fluorescence signal.

The Optiprexx PLS is extremely easy to use and is very compact, with the smallest possible footprint. The system connects to a computer (not supplied) equipped with an USB port to carry out the measurements.

The system includes our advanced control and acquisition software the Optiprexx High Pressure Manager. A video tutorial demonstration of which is available on Almax easyLab’s YouTube channel.


The Optiprexx PLS is used for ruby fluorescence manometry in diamond anvil cells. The system can provide an accuracy of +- 0.1 GPa or better on ruby fluorescence pressure determination.  The software enables full spectrometer control, data acquisition and automatic or manual pressure determination.


Laser Wavelength 532 nm
Laser Power (Nominal) 50 mW
Laser Focusing Objective WD 22 mm as standard
Spectrometer Ocean Optics HR4000
Software Windows compatible (64 bit)
Observing Eyepiece / Lighting X20 magnification / Internal LED
Camera CCD camera (option)
Overall Dimensions 44 cm x 18 cm x 27 cm
Total Weight 9 Kg

Almax easyLab is committed to its policy of continuous improvement. Specifications may change without notice. easyLab and Diacell are registered trademarks of Almax easyLab.


We have compiled a series of technical documents (brochures, articles, technical drawings, …) which you might find useful to help you understand this product better.

Technical documentation

Brochure Optiprexx

Technical Drawing

Please contact us for further details on the engineering drawings.

Spares, Accessories and Options

Our products are tested before leaving our factory on their way to your laboratory.

They also come supplied with the required basic tooling to use them. All is contained in the transportation casing to move around laboratories easily.

Below you can find some of the accessories and spares you might also consider. If you cannot find what you need, please do not hesitate to contact our team.

Optiprexx PLS – Variable V Block for DAC
V block to be mounted on the XYZ stage of the Optiprexx PLS and to be used as DAC holder
Product code: [A80012]
Optiprexx PLS – Optical Fibre Adaptor 
Adaptor that enables the end-user to connect an optical fibre via a SMA connector
Product code: [A80010]
Optiprexx PLS – Optional 5MP Colour Camera Kit
CCD camera to be mounted on the top of the microscope instead of the observation eyepiece
Product code: [A80006]

1 review for Optiprexx PLS Green Laser with Interlock

  1. Jeremiah Tidey

    I have now worked with four ruby fluorescence systems and would happily say that this platform is quite simply the superior device. Designed to accommodate a wide range of DACs witha variety of stages, optical alignment is ultimately incredibly easy to navigate, the focal point of the laser exceptionally fine (we’ve even used it in studying photo-sensitive crystals), the signal strong, and the software easy to use. I would highly recommend budgeting for this device to anyone setting up a high-pressure laboratory.

  2. Christophe

    Hello Jere, Thank you for the nice words. Our team has appreciated them.

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