About Us
ProTrusTech (PTT) is a recognized leader in Raman spectroscopy based in Taiwan, providing state-of-the-art Raman systems to extensive range of applications. The Raman technology allows fast and non-destructive chemical analysis of solids, powders, liquids and thin film, and has recently become widely used in various research and applied fields. Our mission is to enable our customers to carry out their work in a better and smarter way.

We are an engineering and scientific technology ream that has been drawing on experiences with our customers from academic institutes to industrials labs. In 2008, we established ProTrusTech to continue and improve our achievements, providing Raman systems with microscopy, SERS, TERS, photoreflectance, photoluminescence and electroluminescence.

ProTrusTech substantially believes that success comes from both customer satisfaction and our innovation. Building on our expertise in customization and patented technology, we developed a range of high-quality and reliable products: MRI, MRID, GMD and RAMaker.

May 2019, US Patent US10,247,674B2
July 2019, collaborate with NCHU about SERS
April 2018, Get order from India
February 2018, Japan distributor
October 2017, US Patent pending
August 2017, Get Taiwan patent I593953
January 2017, Get Taiwan patent I570402
December 2016, Get order from Sweden and China
October 2016, Publish in Faraday Discussions international journal of AIEE application of micro Raman spectroscopy
January 2016, US, China and Taiwan patent pending 
September 2015, SBIR
January 2015, Apply for US patent
November 2014, First contract of oversea distributor
June 2014, MRI Micro Raman spectrometer
April 2014, Get Taiwan patent M475582
February 2013, Micro Raman spectrometer
December 2011, PRRS surface enhanced kit
November 2011, 266 nm UV Micro Raman
August 2010, RAMaker micro Raman spectrometer
November 2008, Establish

We can provide
‧ Raman spectroscopy
‧ PhotoLuminescence
‧ PhotoReflectance
‧ Tip-Enhanced Raman Scattering
‧ Surface Enhanced Raman Scattering
‧ ElectroLuminescence

Hot Products
MRI (Micro Raman Identify)
MRI is a research-grade system dedicated for a wide application range. The user with different backgrounds will find it suitable for chemical and spectroscopic analysis. Samples in various formats, such as solid, liquid, powder, thin film, paste and gel can all be measured with this compact system. The core technology of MRI provides a minimized design. The small size of MRI could be carried by a suitcase which makes the system very flexible to record Raman spectra either inside a laboratory or in the field.
To fit Raman Spectroscopy latest challenges, MRI could set up vertical or horizontal orientation as MRI is only 4kg also samples could be measured with or without microscope body. One-piece design with precision optical set-up provides high sensitivity and high performance of system. 

*Ultrasteep Rayleigh Blocking MRI allow to see the weakest signal closer to the laser line, especially for Raman spectroscopy application. MRI provide very steep transitions from 90cm-1 @ 532nm.

*MountQic Demountable Laser MRI provide and efficient free space laser design. According to Raman application MRI provide laser kits from VIS to NIR.
*Double-mode Laser Power Adjustment MRI provide dual mode for laser power adjustment, which can adjust laser output power by RAMSpec software panel or the attenuate knob on main MRI body.

*Built-in Goggle Design
For safety MRI attenuates the laser output power automatically under view mode during sample observation.
*Sample Observation Interface MRI with 9M pixels image camera and 3W LED illuminator, which offers a high performance digital imaging. Also RAMSpec could measure sample length & size.

*Heating / Cooling Accessory MRI could add an optional cooling or heating stage. -Temperature Range: 8K~450K -Temperature Range: ~77K -Heating Stage: Up to 1,000K

RAMaker Spectrometer
All PTT Raman Series can provide auto-switch wavelength of laser. RAMaker provides the function of both Raman and PL with selected sources 266, 325,355, 442, 458, 473, 488, 532, 633, 785, and 830 nm. LED sources can be applied for only PL measurement. It also provides upgrading packages, including InGaAs detector for NIR Raman (1064nm) & PL, Photocounting PMT for lifetime measurement, fluorescent Image and combined AFM or NSOM for TERS.
RAMaker Chamber can adjust three different wavelength laser and can also be applied way to add more laser source, The laser energy produced by the software or ND filer. The optical design is suitable for UV ~ Vis or Vis ~ NIR or UV ~ NIR compliance with various fields using. RAMaker Chamber included AF Quick, built-in Goggle optic, Scan / View bar and comply with safety regulations class 1.

RAMaker Chamber also made M475582 patent modulation Raman design, it input third way source via coaxial into RAMaker Chamber.
Included at least ten different wavelengths of LED light sources for measuring fluorescent samples, plus source for doing upconversion
and two photon fluorescence. With M475582 patent design, at the time the signals is measured will not be distorted mapping.

All lasers go through Auto-Free switched design without wavelength calibration. The laser energy controlled by the software or N.D. filer
which has six holds wheel can easy reduce laser energy to avoid sample burning or quenched.

RAMaker included 9M pixels image CCD monitoring and 3W LED white light will provide a high density visible image and auto scale calculated with auto exposure to capture real time image.
The Raman shift of RAMaker start 90cm-1 (532nm) depends on excitation laser source and it is powerful tool for researching inorganic materials. You can also order Anti-Stokes Raman in advise. And Si standard measured by 10 times should be 520±0.7 cm-1. Intensity of Si wafer is higher than 6,000 counts per second based on 532nm laser excitation.

RAMSpec Software

RAMSpec Software function includes timely display of scanning spectra, automatic calculation of A/B ratio, intensity distribution, and Raman shift distribution. Mapping function includes Raman signal 2D and 3D displays. RAMSpec Software also provided optional functions included  quantity and user database search.
Optional Dynamic analysis and trend measurement function, providing 2D / 3D display, can be for A / B ratio, peak wavelength, absorption, penetration and user-defined parameters, the peak position, width and half-wave surface integral real-time display. Time resolution spectral and colorimetric analysis. With elements of the search function, you can analyze atom and ion type.

Optional Optional Micro Fluorescence lifetime (TCSPC )
-Used PicoQuant or Becker & Hickl kit
-Measurement Life Time : 200ps~500ns or 500ns~1s or 200ps~s.
-PMT Detector range : 300~800nm
-NIR Detector range : 650~ 1700nm
-Picosecond Pulse Laser: 375、405、440、473、488、640nm
-FLIM coming soon

Faraday Discussions, P19, DOI: 10.1039/C6FD00164E
Dual photoluminescence enhancement application

Optional Cooling or heating stage
-Temperature Range: 8K~450K
-Temperature Range: ~77K
-Heating Stage: up to 1,000K

Optional Polarizer