Evgeni Gregory Stolov,      Doctor of Physics and Mathematics.

 

tel. 972-54-7333699,

Address: Isser Natanzon str., 25/6, Jerusalem, 9778724. Israel

 

EDUCATION
1954-1965-Specialized physical and mathematical school. Finished school
with silver medal.
1965-1971-State University, Leningrad faculty of physics. Graduated with
the specialty “Optics and Spectroscopy”.
1977-State University, Leningrad, PH. D. in Physics and Mathematics.
1990-State University, Leningrad, Doctor in Physics and Mathematics, highest scientific
Degree in the USSR. Dissertation topic was approved by Minister of Military Industry
of the USSR.

EXPERIENCE
1991-present Ophir Optronics Solution Jerusalem Israel, R&D of Optical Coatings.
With his participation the company in few years has grown from a small company to
a world leader in the field of electro-optics.
1971-1991 – Leningrad Optical and Mechanical Association, Lead Engineer of Highly
Complex Projects.

PUBLICATIONS
More than 80 patents in USSR, USA, Israel and more than 40 papers.

HONOR and AWARDS

1. Best Inventor of The Ministry of The Military Industry, 1980.

   2. Nomination International Scientist of the year, 2002.


REFERENCES

• Who’s Who in Science and Engineering, 6-7 Editions.

• Who’s Who in the World, 19-20 Editions.

• One Thousand Great Scientists (IBC, Cambridge, England), 2002.

• 2000 Outstanding Intellectuals of the 21 Century (IBC, Cambridge, England),
  2002.

• 2000 Eminent Scientists of Today (IBC, Cambridge, England), 2002.

• Great Minds of the 21 Century. The American Biographical Institute, 2002.

• 5000 Leaders of Science. The American Biographical Institute, 2003.

 

THEORETICAL RESEARCH

A new theoretical approach was developed to the analytical solution of the
nonlinear equations. The method was adopted to the problem of the complicated
optical systems calculations, in particular interference optical coatings and
filters.
Based on the analysis of the most general properties of complex physical systems
and taking into account modern computer opportunities developed new search method
for the nonlinear equations solution with uniform step net in the space of unknowns.
The advantage of the method is maximum possible speed of response provided by the
prevention of the computer’s operation dubbing. This method was applied to the coating
synthesis and reverse engineering. On the base of this method were developed coatings
with new physical property: auto compensation distortion of the reflected wave front
caused by non-uniformity of the layer’s thicknesses.
Developed new approach of optimization optical coatings based on the step-by-step
addition to the calculated coating group of layers. New criteria for the determination
of the parameters of the added layers group was developed. Such approach enables
to avoid essential distortion of the optical properties in comparison with initial
coating. At the same time, it gives an opportunity to continue optimization by
increasing number of variables.

EXPERIMENTAL RESEARCH AND DEVELOPMENTS

High Durability (HD) and High Efficiency (HE) Antireflective (AR) Coatings
for UV, visible, SWIR, MWIR, LWIR for different substrates (Si, Ge, ZnS, ZnSe,
CaF2, BaF2, AMTIR, GaAs, IG4, IG6, CdTe, KRS-5, Sapphire, quartz, glasses)
were worked out. List of developed coatings includes not only coating for one
spectral range but also multi spectral coatings for: visible 3-5 mc, visible 8-12 mc,
visible&YAG 3-5 mc, visible&YAG 8-12 mc, visible&YAG 1.57&3-5 mc,
visible&YAG  1.57&8-12 mc, visible 9.4 mc, visible 10.6 mc, visible 3.9&106 mc.
Different types of Beam Combiners and Dichroic Mirrors for different combinations
of spectral ranges presented above.
Cut-off, bandpass narrowband filters for different spectral ranges.
Beam Splitters (including nonpolarizing) for different spectral ranges.

Phase Retarders, Polarizers and Zero Phase Mirrors for different spectral ranges.
ATFR and PLM mirrors for 9.4&10.6 mc.
Coatings on large-size optics up to 2.0 meter.
New combined method of optical thicknesses control during coatings deposition
based on crystal monitor and optical monitor data.
Process of Diamond AR coatings deposition on soft crystals like ZnSe, Cleartran.
Original approaches for the increasing Laser Damage Threshold Level (LDTL).
Method based on open phenomena of thermos dynamics of rear metal oxides
evaporation.
Absorbing coatings for different spectral ranges. For instance, coating with R<0.25%
for 400-800 nm.

FEW EXAMPLES OF ORIGINAL DEVELOPMENTS
IMPLEMENTED TO THE INDUSTRY
HD and HE AR on very short radius lenses (almost half of the sphere) were
Developed.
AR for YAG and Iodine Lasers with high LDTL (4-6 joule/cm2, 0.5 nanosecond
pulse duration) were developed.
HD and HE coatings for 3-5 mc with average reflectance 0.10-0.15% were
developed. Coating avoids ghost images formation.
New type of HD AR coating for 3.0-5.0 mc. This coating prevents heating of
external lens of infrared objectives.
HD coatings for outside lenses surfaces which could stand up to 10 months in salt
spray or salt solubility tests.
High reflective protective silver mirror with very thin protective layer was worked
out. Mirror has high-level straight-line reflection from visible up to 15.0 mc.
Special filters which could withstand an exposure to zone of nuclear explosion.

FUTURE EXPLORATORY RESEARCH

It was shown that there is an analogy between the process of filtration and functions
calculation when the definite information coding system is used. The usage of
interference filter is most promising as interference phenomenon in laminated media
reflects the process of calculation most adequately. Various circuit modifications of
optical calculators based on interference filters were suggested. These systems
prove the possibility on principle of parallel optical processors creation, which produce
complex parallel information processing along many channels with maximum possible
speed limited only by the time of optical radiation registration.
New type of optical sight free of parallax based on Total Internal Reflection phenomena
and specific properties of interference coating was invented and tested.​