SCIENTIFIC RESEARCH DEPARTMENT OFHOLOGRAPHY AND OPTICAL TOMOGRAPHY

Conduction of fundamental and applied scientific research in the field of holography and optical tomography, establishment of a Standard base in the field of refractometry, polarimetry, ellipsometry and ophthalmology

Heads

Main activities

• Conduction of fundamental and applied scientific research in the fields of holography and optical tomography
• Establishment of a Standard base in the fields of refractometry, polarimetry, ellipsometry and ophthalmology

Main objectives

• Metrological support in the fields of refractometry, polarimetry, ellipsometry and ophthalmology
• Research and development works in such fields as:
  • optical tomography (microtomography of biological objects, emission tomography)
  • holography
  • optical nanoprofilometry
  • optical profilometry of macroobjects
  • three-dimensional (3D) biometry
  • refractometry, polarimetry and ellipsometry

Department Standard base

	State primary standard of the eyewear optical power unit GET 197-2011 State primary standard is used for reproduction and maintenance of the vertex refraction units (diopters - meter to the power of negative one, dptr (m-1)) and units of the eyewear (standard) prismatic action (prism diopters - centimeter divided by the meter, pr. dptr (cm/m)), which are obtained by calculation and the subsequent transmission of these units through working standards to working measuring instruments
	State primary standard of the complex refractive index unit GET 203-2012 State primary standard is used to control the technological parameters (thickness, composition, roughness value) in the fields of semiconductor nanoelectronics, x-ray optics, optical interference coatings including metal layers.
	State primary standard of ellipsometric angle units GET 186-2010 State primary standard of ellipsometric angle units is used to study the physicochemical properties of the surface, its morphology for measuring the thickness of multilayer structures and characterizing optical properties of thin films.
	State primary standard of refractive index unit GET 138-2010 State primary standard is used for reproducing and maintaining refractive index unit of solid and liquid substances and transmitting the size of refractive index unit by means of working standards to working measuring instruments. (GOST 8.583-2003).
	State primary standard of unit of polarization plane rotation angle GET 50-2008 Designed for reproduction and maintenance of unit of polarization plane rotation angle and transmission of the unit size by means of working standards to working measuring instruments. (GOST 8.590-2009).
	Working standard of zero discharge instruments for measuring vertex refraction and eyewear prismatic action VET 138-1-2006 The working standard of zero discharge consists of two reference systems of measuring instruments and auxiliaries.

Delivered equipment

	DEA-1 Standard automated dioptrimeter State Register № 46518-11 DEA-1 standard automated dioptrimeter is developed on the basis of LM-500 serial automatic lensmeter (NIDEK, Japan), and aimed at initial and periodic verifications of sets of trial spectacle lenses and prisms as well as sciascopy frames.
	DEA-2 Standard automated dioptrimeter State Register № 47215-11 DEA-2 standard automated dioptrimeter is developed on the basis of CLM-3100R serial automatic dioptrimeter (HUVITZ, South Korea), and aimed at initial and periodic verifications of sets of trial spectacle lenses and prisms as well as sciascopy frames.
	ISA-1 Automated fiber-optic interferometer State Register № 48170-11 ISA-1 is designed to measure the distribution of the object refractive index in micro- and nanoscale based on the analysis of two-dimensional distribution of the optical path difference (OPD) between radiation, which passed through the test object and reference radiation.
	IFA-300 Automated Fizeau interferometer State Register № IFA-300 is a hardware-software complex for automation of measurements on interferometers constructed by Fizeau type, and is used for measuring deviations from sphericity and flatness of precision surfaces of optical components and optical systems.
	IMIA-D automated interferometric microscope (dynamic) State Register № 48172-11 MIA-D is designed to measure the surface profile reflecting the dynamic objects in micro- and nanoscale, as well as to distribute the refractive index of transparent dynamic objects (using a special cell). Using a high-speed camera allows measurements with a frequency of 50 Hz.
	Standard sets of MPPE-T refractive index measures State Register № 31044-06 Designed for transmission of the unit size to working standards of the 2nd category by comparison with the help of comparator (goniometer) and to working measuring instruments (goniometer-spectrometer) using a method of direct measurements in accordance with GOST 8.583-2003.
	Set of NOM-3 optical measures for verification of ophthalmic instruments State Register № 40378-09 Designed to determine metrological characteristics of the ophthalmic instruments: refractometers, keratorefractometers and keratometers (ophthalmometer) during their initial and periodic verification.
	PIC-30M computer interferometric profilometer State Register № 48169-11 PIC-30M is designed to measure the relative heights of the surface profile (topograms) of polished objects including substrates of spherical mirrors, which diameter does not exceed 30 mm, height does not exceed 10 mm, and the radius of curvature ranges from 2 m to 7 m.
	Sets of PPC-2R devices for verification of dioptrimeters State Register № 36542-07 Designed to determine the metrological characteristics of domestic and imported dioptrimeters during their initial and periodic verification, calibration and repair.
	MIA-1M automated interferometric microscope (microprofilometer) State Register № 48171-11 Designed to measure the surface profile of reflecting objects in micro- and nanoscale, as well as the refractive index distribution for transparent objects.
	Measuring 3D camera Designed for non-contact measurement of three-dimensional shape of the face and other dynamic objects.
	Measuring Intraoral 3D camera for dentistry Intraoral 3D camera is designed for non-contact measurement of three-dimensional surface of the tooth directly in the patient's mouth.

Developed methods

• Methods of measuring the second and third order nonlinear susceptibilities for generating processes of the second and third optical harmonics. FR.1.27.2010.07801 SA 11/2010 (Developed in collaboration with the Physics Department staff of Lomonosov Moscow State University)
• Methods of measuring the third order nonlinear susceptibility for the process of light self-action using the method of laser beam profile analysis. FR.1.27.2010.07802 SA 12/2010 (Developed in collaboration with the Physics Department staff of Lomonosov Moscow State University)
• Methods of measuring the three-dimensional spatial distribution of the local optical field density on the scanning near-field microscope using standard samples of nanostructures and photonic crystals. FR.1.27.2010.07804 SA 13/2010(Developed in collaboration with the Physics Department staff of Lomonosov Moscow State University)
• Methods of measuring the three-dimensional spatial distribution of the polarization characteristics of the local optical fields in the sublong-wave range on the scanning near-field microscope using standard samples of nanostructures and photonic crystals. FR.1.27.2010.07803 SA 14/2010 (Developed in collaboration with the Physics Department staff of Lomonosov Moscow State University)
• Methods of measuring the transmission and reflection spectrum of one- and three-dimensional photonic crystals using SOLAR LS M266 monochromator/spectrograph. FR.1.27.2010.07800 SA 10/2010 (Developed in collaboration with the Physics Department staff of Lomonosov Moscow State University)
• Measurement technique. Determination of intracellular mass by interference method. Federal Register № FR.1.29.2009.06576. Measurement technique is developed for measuring intracellular masses of living cells by interference method using an automated interferometric microscope. Measurement range: 20 - 100 pg Measurement accuracy limit: ± 2%
• Measurement technique. Structural and dynamic properties of the erythrocyte cytoplasm. Federal Register № FR.1.27.2009.06577 Measurement technique is developed for measuring structural and dynamic properties of the erythrocyte cytoplasm by interference method using an automated interferometric microscope.

Measuring ranges:

• effective radius of erythrocyte 5 - 10 micrometers
• volume 50-150 mm3
• erythrocyte area 70 - 320 micrometers2

Range of measurement error:

• effective radius of the erythrocyte ± 2
• volume ± 2%
• erythrocyte area ± 2%

Developed methods

• verification of ophthalmometer
• verification of sciascopy frames
• verification of sets of trial eyeglass lenses and prisms
• verification of dioptrimeters
• verification of imported dioptrimeters
• verification of autorefractometers
• verification of keratometers
• verification of refractometers
• verification of refractive index measures
• verification of polarimeters
• verification of polarimetric plates
• testing of measuring instruments for the purpose of type approval
• testing of measuring instruments for compliance with the approved type