Search Results - "Mansuryan, Tigran"
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Multimode nonlinear fiber optics, a spatiotemporal avenue
Published in APL photonics (01-11-2019)“…We provide a perspective overview of the emerging field of nonlinear optics in multimode optical fibers. These fibers enable new methods for the ultrafast…”
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2
Spatiotemporal beam self-cleaning for high-resolution nonlinear fluorescence imaging with multimode fiber
Published in Scientific reports (14-09-2021)“…Beam self-cleaning (BSC) in graded-index (GRIN) multimode fibers (MMFs) has been recently reported by different research groups. Driven by the interplay…”
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3
Coherent combining of self-cleaned multimode beams
Published in Scientific reports (24-11-2020)“…A low intensity light beam emerges from a graded-index, highly multimode optical fibre with a speckled shape, while at higher intensity the Kerr nonlinearity…”
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4
Spatial beam reshaping and large-band nonlinear conversion in rectangular-core phosphate glass fibers
Published in Frontiers of Optoelectronics (Online) (2022)“…Here we present the ability of Nd 3+-doped zinc-phosphate glasses to be shaped into rectangular core fibers. At first, the physico-chemical properties of the…”
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5
Twin spotlight beam generation in quadratic crystals
Published in Communications physics (04-08-2022)“…Optical rogue waves have been extensively studied in the past two decades. However, observations of multidimensional extreme wave events remain surprisingly…”
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6
Boosting and Taming Wave Breakup in Second Harmonic Generation
Published in Frontiers in physics (19-03-2021)“…Modulation instability is a universal phenomenon that can be found in a wide variety of nonlinear systems where, in the presence of a noise seed, peaks of…”
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7
Highly Nonlinear Multimode Tellurite Fibers: From Glass Synthesis to Practical Applications in Multiphoton Imaging
Published in Advanced photonics research (01-01-2023)“…Herein, a tellurite multimode optical fiber with a rectangular step‐index core to combine easy coupling of the pump power with the exceptionally cubic…”
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8
Nonlinear beam self-imaging and self-focusing dynamics in a GRIN multimode optical fiber: theory and experiments
Published in Optics express (03-08-2020)“…Beam self-imaging in nonlinear graded-index multimode optical fibers is of interest for many applications, such as implementing a fast saturable absorber…”
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9
Multimode Optical Fiber Beam-By-Beam Cleanup
Published in Journal of lightwave technology (15-05-2023)“…We introduce and experimentally demonstrate the concept of all-optical beam switching in graded-index multimode optical fibers. Nonlinear coupling between…”
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10
Development of a real-time flexible multiphoton microendoscope for label-free imaging in a live animal
Published in Scientific reports (17-12-2015)“…We present a two-photon microendoscope capable of in vivo label-free deep-tissue high-resolution fast imaging through a very long optical fiber. First, an…”
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11
Generation of second harmonic at wide conversion band in GRIN multimode fibers
Published in Optics communications (15-10-2024)“…Optical poling of multimode graded-index fibers (GRIN) has emerged as a promising technique for creating periodic inscriptions of the second-order nonlinear…”
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12
Temporal shaping of high‐voltage picosecond electric pulses for electronic spectroscopy and bioelectric applications
Published in Microwave and optical technology letters (01-02-2023)“…Abstract In this paper, we present the temporal and spectral shaping of kilovolt picosecond electrical pulses obtained by using the linear switching process…”
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13
Characterization of a multicore fiber image guide for nonlinear endoscopic imaging using two-photon fluorescence and second-harmonic generation
Published in Journal of biomedical optics (01-10-2019)“…Multiphoton microscopy (MPM) has the capacity to record second-harmonic generation (SHG) and endogenous two-photon excitation fluorescence (2PEF) signals…”
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14
Ultrashort pulse fiber delivery with optimized dispersion control by reflection grisms at 800 nm
Published in Optics express (05-11-2012)“…We experimentally demonstrate a compact and efficient arrangement for fiber delivery of sub-30 fs energetic light pulses at 800 nm. Pulses coming from a…”
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15
Temporal shaping of high‐voltage picosecond electric pulses for electronic spectroscopy and bioelectric applications
Published in Microwave and optical technology letters (01-02-2023)“…In this paper, we present the temporal and spectral shaping of kilovolt picosecond electrical pulses obtained by using the linear switching process with…”
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16
A readily usable two‐photon fluorescence lifetime microendoscope
Published in Journal of biophotonics (01-05-2019)“…A two‐photon fluorescence lifetime (2P‐FLIM) microendoscope, capable of energetic metabolism imaging through the intracellular nicotinamide adenine…”
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17
Spatially dispersive amplification in a 12-core fiber and femtosecond pulse synthesis by coherent spectral combining
Published in Optics express (03-06-2013)“…A compact scheme is demonstrated for amplification and synthesis of ultrashort pulses by fiber amplifiers. Femtosecond pulses are split in 12 different…”
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18
Ultrashort pulse fiber delivery with optimized dispersion control by reflection grisms at 800 nm
Published in Optics express (05-11-2012)“…We experimentally demonstrate a compact and efficient arrangement for fiber delivery of sub-30 fs energetic light pulses at 800 nm. Pulses coming from a…”
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19
Spatially dispersive scheme for transmission and synthesis of femtosecond pulses through a multicore fiber
Published in Optics express (22-10-2012)“…A new scheme is presented for fiber transmission of ultrashort laser pulses. A dispersive device divides the input pulses into spatially separated spectral…”
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20
Development of a nonlinear fiber-optic spectrometer for human lung tissue exploration
Published in Biomedical optics express (01-05-2012)“…Several major lung pathologies are characterized by early modifications of the extracellular matrix (ECM) fibrillar collagen and elastin network. We report…”
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