Search Results - "Melkonian, M M"
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QEPAS sensor using a radial resonator
Published in Applied physics. B, Lasers and optics (01-11-2021)“…We report on the use of a radial acoustic resonator to increase the acoustic signal of a quartz enhanced photoacoustic spectroscopy (QEPAS) sensor. This…”
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2
High power, tunable hybrid fiber/bulk laser at 1030 nm and parametric frequency conversion in the near and mid-infrared
Published in Applied physics. B, Lasers and optics (01-05-2022)“…We report on a high power, wavelength-agile, hybrid fiber-bulk laser, emitting up to 3.5 mJ 15 ns pulses at 1030 nm at 5 kHz repetition rate. This hybrid laser…”
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3
A narrowband infrared source based on orientation-patterned GaAs for standoff detection of chemicals
Published in Applied physics. B, Lasers and optics (01-07-2018)“…This paper presents our work on a pulsed single-frequency tunable optical parametric oscillator based on orientation-patterned gallium arsenide. Owing to…”
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4
Bleeding risk of antiplatelet drugs compared with oral anticoagulants in older patients with atrial fibrillation: a systematic review and meta‐analysis
Published in Journal of thrombosis and haemostasis (01-07-2017)“…Essentials Hemorrhagic risk of antiplatelet drugs is generally thought to be lower than anticoagulants. We systematically reviewed trials comparing…”
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5
Biofilm cultivation of marine dinoflagellates under different temperatures and nitrogen regimes enhances DHA productivity
Published in Journal of applied phycology (01-04-2020)“…Dinoflagellates contain large amounts of omega-3 fatty acids, including the nutritionally important docosahexaenoic acid (DHA). However, their cultivation in…”
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6
Endosymbiotic gene transfer and transcriptional regulation of transferred genes in Paulinella chromatophora
Published in Molecular biology and evolution (01-01-2011)“…Paulinella chromatophora is a cercozoan amoeba that contains "chromatophores," which are photosynthetic inclusions of cyanobacterial origin. The recent…”
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7
The Evolution of HD2 Proteins in Green Plants
Published in Trends in plant science (01-12-2016)“…In eukaryotes, protein deacetylation is carried out by two well-conserved histone deacetylase (HDAC) families: RPD3/HDA1 and SIR2. Intriguingly, model plants…”
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Molecular phylogeny and taxonomic revision of Chlamydomonas (Chlorophyta). I. Emendation of Chlamydomonas Ehrenberg and Chloromonas Gobi, and description of Oogamochlamys gen. nov. and Lobochlamys gen. nov
Published in Protist (01-12-2001)“…The genus Chlamydomonas (including Chloromonas) is one of the largest green algal genera comprising more than 600 species. To initiate a comprehensive analysis…”
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9
Passive mode locking of optical parametric oscillators: an efficient technique for generating sub-picosecond pulses
Published in Optics express (31-03-2008)“…We show that optical parametric generation in a nonlinear crystal with a large group velocity mismatch between the pump and nearly-degenerate signal and idler…”
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Pulsed optical parametric oscillators with intracavity optical parametric amplification : a critical study
Published in Applied physics. B, Lasers and optics (01-03-2007)“…It is known that the idler conversion efficiency of optical parametric oscillators (OPOs) can be increased by adding a second nonlinear crystal in the cavity…”
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11
Passively mode-locked slow pump optical parametric oscillators
Published in 2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science (15-01-2008)“…We propose to use Bragg grating to induce large walk-off between the signal and slow pump in nonlinear crystal for developing passively mode-locked OPOpsilas…”
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Conference Proceeding -
12
Fast tunable picosecond optical parametric oscillator based on chirped quasi-phase matching
Published in 2015 Conference on Lasers and Electro-Optics (CLEO) (01-05-2015)“…We report on a picosecond OPO combining an aperiodically poled nonlinear crystal and a rapidly tunable intracavity spectral filter. Fast tuning over 80 nm…”
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Conference Proceeding -
13
Long-wave infrared single-frequency OP-GaAs OPO pumped by a pulsed Tm:YAP microlaser
Published in 2015 Conference on Lasers and Electro-Optics (CLEO) (01-05-2015)“…We report on a single-frequency nested cavity OPO based on OP-GaAs, pumped by a pulsed Tm:YAP microlaser. The threshold energy is 10 μJ and temperature tuning…”
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Conference Proceeding -
14
Experimental and numerical analysis of commercial and homemade tuning forks for QEPAS
Published in 2015 Conference on Lasers and Electro-Optics (CLEO) (01-05-2015)“…Characteristics of two commercial quartz tuning forks and a homemade tuning fork are compared for standard QEPAS experiments. An analytical model is also…”
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Conference Proceeding -
15
The secretory pathway of protists : Spatial and functional organization and evolution
Published in Microbiological reviews (01-12-1996)“…All cells secrete a diversity of macromolecules to modify their environment or to protect themselves. Eukaryotic cells have evolved a complex secretory pathway…”
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16
Spectral and temporal effects in a picosecond optical parametric oscillator based on an aperiodically poled nonlinear crystal
Published in CLEO: 2013 (01-06-2013)“…We investigate cavity length detuning in a picosecond synchronously pumped optical parametric oscillator based on an aperiodically poled nonlinear crystal. A…”
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Conference Proceeding -
17
Control of Melt Decomposition for the Growth of High Quality AgGaGeS4 Single Crystals for Mid-IR Laser Applications
Published in Crystal growth & design (05-11-2014)“…AgGaGeS4 (AGGS) is a promising nonlinear crystal for mid-IR laser applications which could satisfy the lack of materials able to convert a 1.064 μm pump signal…”
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18
Tolerance and tuning of diffraction-grating narrowed synchronously pumped optical parametric oscillators
Published in 2012 Conference on Lasers and Electro-Optics (CLEO) (01-05-2012)“…Line-narrowing of a synchronously-pumped OPO using an intracavity diffraction grating leads to a fivefold increase of the resonator-length detuning tolerance…”
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Conference Proceeding -
19
QEPAS Sensor Based on the Tracking of the Photoacoustic Induced Frequency Shift of a Tuning Fork Maintained in Self-Sustained Oscillation by Electrical Excitation
Published in 2021 Conference on Lasers and Electro-Optics (CLEO) (01-05-2021)“…Oscillator frequency shift induced by the photoacoustic force on a closed-loop electrically excited quartz tuning fork is exploited to carry out QEPAS…”
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Conference Proceeding -
20
Shift in the content of immune cytokines in heart of mice under acoustic stress conditions and delta-sleep inducing peptide application
Published in Georgian medical news (01-05-2008)“…Quantitative shifts in the content of interleukine-1, -2 and -6 of the myocardium of mice under the conditions of acoustic stress and delta-sleep inducing…”
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