Quantum State Engineering, Hyper-Entanglement, Entanglement Manipulation and Processing on a Chip, Micro-and Nano-Photonics, Ultrafast Quantum Optics,
Ultra-Precise Optical Measurement in Science and Technology (Quantum Metrology), Characterization of organic, polymer, and semiconductor structures used in modern biophysics, nanophotonics, and optoelectronics ,
Quantum Bio-Photonics, Characterization and diagnostic of biological materials and devices for life sciences and proteomics by exploiting the power of entangled-photon states ,
Quantum Information Processing, Quantum Cryptography and Communication,
Quantum Networking, Linear Optical Quantum Computing
Quantum Imaging and Correlation Spectroscopy with Superconducting Photon-Counting Detectors
Our main objective
is to conduct research at the frontier of quantum optics developing novel biophysics, photonics, and information processing techniques that surpass conventional
approaches in the amount of information
obtained and in the accuracy of measurement.
Entangled-State Engineering, Entanglement Manipulation and Processing on a Chip, Micro-and Nano-Photonics,Ultrafast Quantum Optics:
Investigation and practical use of nonstationary
quantum optics with femtosecond pulses in periodically-modulated nonlinear waveguides and in
bulk nonlinear crystals. Integrating sources and optical circuits on a single chip for entanglement creation and manipulation. Development of compact integrated entangled-photon sources by intelligent manipulation of spatial and electrooptical properties of nonlinear crystals.
Quantum engineering of specialty entangled states for practical use in
characterization and diagnostic of biological and optoelectronics materials, quantum information processing, and quantum metrology. Generation of
multiple-photon and hyper-entangled states.
Quantum Bio-Photonics: Characterization and Diagnostic of Biological and Photonic Materials and Devices Using Entangled-Photon States.
Quantum Optical Coherence Tomography
(QOCT):do not confuse with tomography of quantum states.
entanglement protects single-photon wavepackets from dispersive spreading (quantum dispersion
cancellation effect) inside the biological tissue and increases resolution in comparison
with conventional optical coherence tomography. Characterization of biological samples without photodamage. Obtaining information in a broad spectral range from the visible to mid-infrared using novel supeconducting single-photon detectors.
Quantum Ellipsometry - Biophysics and biochemistry of complex proteins on a surface. Characterization of organic and semiconductor layered structures used in
main objective of this project is to develop a new approach to characterize
parameters of biological and photonics materials in transmission and in reflection
configuration using our ability for the sub-femtosecond measurement of optical
delay between two orthogonally polarized signal and idler waves in SPDC. This
approach can be considered as a quantum counterpart to the conventional optical
ellipsometry. The primary motivation is not only to develop a quantum optical
material characterization technique which enhances significantly the capability
of conventional ellipsometry measurement but to obtain also a detailed
information about the interaction of quantum light with modern
microscopic systems. Using frequency entanglement and novel supeconducting single-photon detectors enabled us to obtain this information continuously in a broad spectral range from visible to mid-infrared.
Quantum Information and
Communication, Quantum Networking: Multiparty secure quantum key distribution
of quantum cryptographycally protected communication line in the open air and in the fiber and of the local
area network. Principles of quantum mechanics protect the signal from
interception and duplication. Future applications are in the most secure
communication lines for bank-to-ATM transactions, financial information
protection over the internet, and government communications including the use
for ship-to-ship, ground-to-satellite, and satellite-to-satellite
Robust Integrated Linear Optical Quantum Computing.
i) Design and practical realization of multiple synchronized sources of photon pairs on a single chip with independently controllable spatial, spectral, and polarization properties. ii) Development of novel sources of narrow-band, polarization-entangled photon pairs at telecom wavelengths for building a distributed network of linear optical quantum information processors. iii) Extending our recent results in quantum communication with decoherence-free subspaces in order to develop robust linear-optical quantum computing techniques in which common sources of error (phase and polarization drift, fluctuations etc.) are mitigated.
Quantum Imaging and Correlation Spectroscopy:
imaging configurations for practical applications in high-resolution multi-spectral visualization of biological objects.
spectroscopy of biological molecules in the visible and mid-infrared using novel supeconducting single-photon detectors.
signal-to-noise ratio of very low-level optical signals for studies of organic
and biological molecules in small concentrations and for the spectroscopy of
remote and dilute samples.
Ultra-Precise Optical Measurement in Science and Technology (Quantum Metrology):
High-resolution multi-channel measurement of polarization
mode dispersion (PMD) and polarization dependent loss (PDL) in communication
fibers and components of optical networks (switches, routers, couplers,
Absolute photon source
To generate exactly
known number of photons of specified color (visible or infrared), orientation,
and polarization for high-accuracy optical characterization at the ultra-low
intensities. Applications in the measurement of sensitivity and spectral
response of complex photosensors from human eye to IR night-vision viewer.
Absolute measurement of
quantum efficiency of photon counting detectors without any standards.
The NIST level of
accuracy is now available at every lab or manufacturing facility. Quantum
mechanics is a "democratic" standard.
Measurement of infrared
radiation parameters without infrared detectors
and without its absorption (radiation
can be used in parallel with the measurement procedure). IR spectrometer
without moving parts and IR detectors. Direct evaluation of the IR source
temperature. Applications in optical metrology, physical measurements, as well
as in industrial and military applications including recognition of unknown
Study of fundamental
interactions of quantum light with microscopic systems
such as complex biological molecules, superconducting mesoscopic formations, semiconductor microcavity structures. Quantum tunneling
and surface effects. Acquire knowledge to design new biological and optoelectronic devices and
to control the manufacturing process.
Sagnac interferometer using
entangled photons and enhanced sensitivity gyroscope
for navigation with
the dispersion cancellation effect. Fiber sensors. Ultrasensitive measurement
of changes in major physical parameters.