Our team

Our team is focused on implementing a revolutionary idea of the new operation principle of Fourier transform spectrophotometer, originated by Russian scientist Serguei Palto, Doctor of Science in Physics and Mathematics.

The idea of Fourier transform spectrophotometer, which is capable of operating in the visible spectral range, was originated by Serguei Palto (Laboratory of Liquid crystals, Shubnikov Institute of Crystallography of Russian Academy of Sciences) after he had developed PhysLab software packet for physical experiments. The PhysLab software is based on the principle of digital signal processing using the fast Fourier transform (FFT) method, and PC multimedia technology was selected as the technical base. Rapid growth and development of the multimedia technology has made high quality digitizing of audio signals possible for almost all PCs. Thus, the PhysLab software has enabled the first virtual realization of such physical devices as lock-in amplifier, spectrum analyzer, selective voltmeter, arbitrary waveform generators, and many others. During the same period of time many virtual devices for optical spectroscopy were suggested and made (monochromator scanning control, phase-sensitive signal detection under elevated photonic noise, registration of minor spectral changes in an electric field (Stark spectroscopy)).

The idea to apply FTS for visible range was established while modulation Stark spectroscopy was being developed. By that time an understanding was reached that high accuracy sinusoidal movement of the mirror could replace classical constant velocity movement used in FTS elsewhere. At the same time first experiments were carried out to get interferograms from a Michelson interferometer, where the mirror was attached to a movable diffuser of a speaker. The results looked very promising and the PhysLab virtual device bank was supplemented with virtual optical FTS module. The basic principles of the device operation were described in the doctoral thesis of S. Palto (1998).

After the first successful tests, the creation of a prototype began. A Russian patent application was filed in 2002 and the patent was successfully issued in 2004. The prototype production was completed in 2002, when experiments proved expected parameters in the UV and visible spectral range. Unfortunately, despite a good performance, the first prototype still conceded to commercial samples in usability, long-term stability, and in addition was vibration sensitive. Commercialization required serious revision, and the Institute of Crystallography seized the patent support. Nonetheless, the author continued to improve the device on his own, in parallel to multimedia technology development.

Meanwhile the sampling rate of multimedia cards has increased by 4 times, and ADC/DAC dynamic range has grown more than 100 times (24 bits vs. 16 bits). This allowed the extension of both dynamic range of signal registration and mirror frequency control (through vibration reduction). The software has also been improved. The idea of dynamic compensation of light source fluctuations has been implemented, thus the long-term stability problem has been solved. A mirror vibration active suppression system has been suggested and implemented, and it will be further developed as the project goes forward. It has been shown that using a stabilized halogen light source and corresponding detectors for NIR range (e. g., PbS) provides working spectral range from 350 nm to 2500 nm. As a result, current version of the device has good prospects to compete with the best commercial samples.

According to recent literature review, the problem of visible range FT spectrophotometer creation has not become less relevant recently, but just the opposite.



Artur Geivandov
Artur Geivandov
General director, CEO

Graduated from the Moscow State Institute of Electronics and Mathematics. Received his PhD degree in Physical and Mathematical Sciences in 2004. Worked as a project coordinator at Samsung Research Center. Managed R&D projects as CTO at Kontrakt LLC, later Crysoptix KK. The projects resulted successful development of new functional organic materials applicable as optical coatings for LCD technology.
Serguei Palto
Serguei Palto
Science Consultant

Received his Master degree in Physical Engineering from the Moscow Physical Technical Institute. Received a Doctor of Science Degree in Physics and Mathematics in 1998. Expert in Condensed matter physics (physics of liquid crystals; optics of non-homogeneous anisotropic media; photon crystal based microlasers; physics of ferroelectrics; spectroscopy and Stark-spectroscopy). Has published over 160 scientific publications in leading Russian and international publishing. Inventor of a new method of optical retardation modulation for Fourier transform spectrometer (FTS) and a creator of the first FTS prototype utilizing this method for the NIR, visible, and UV spectral range. Author of a software that controls FTS utilizing harmonical modulation of optical phase retardation.
Victor Palto
Victor Palto
Electronics engineer

Graduated from Moscow Aviation Institute. Engineer in “Computing machines, complexes, systems and networks”. Skilled in programming languages including programming of chips and integrated circuits. Model aviation enthusiast. Possess rich experience in designing, developing of aviation and electronic devices for radio controlled aircrafts and helicopters.
Alexey Bratischev
Alexey Bratischev
Leading Optical Engineer

Received his MS degree in Engineering from the Bauman Moscow State Technical University (specialization “Optical electronic devices and systems”). Over 7 years of experience of different purpose optical devices design (form modeling stage to prototype releasing and testing). Author of more than 20 patents in optical devices. Has been leading Nanomaterials department of Rusnano’s science and technological expertise since 2005.