Search Results - "Ravaro, Marco"
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Coherent sampling of active mode-locked terahertz quantum cascade lasers and frequency synthesis
Published in Nature photonics (01-05-2011)“…Terahertz quantum cascade lasers are compact, electrically pumped semiconductor laser sources that are capable of delivering tens of milliwatts of power in…”
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2
Second-Harmonic Generation in Suspended AlGaAs Waveguides: A Comparative Study
Published in Micromachines (Basel) (23-02-2020)“…Due to adjustable modal birefringence, suspended AlGaAs optical waveguides with submicron transverse sections can support phase-matched frequency mixing in the…”
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3
Real-time terahertz digital holography with a quantum cascade laser
Published in Scientific reports (28-08-2015)“…Coherent imaging in the THz range promises to exploit the peculiar capabilities of these wavelengths to penetrate common materials like plastics, ceramics,…”
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4
Observation of Quasi-Invariant Photocarrier Lifetimes in PbS Nanocrystal Assemblies Coupled to Resonant and Nonresonant Arrays of Optical Antennas
Published in ACS photonics (21-02-2024)“…We examine, in the time domain, the influence of Au antenna arrays (i.e., metasurfaces) on thin films of near-infrared PbS nanocrystals that mutually interact…”
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5
Measurement of the intrinsic linewidth of terahertz quantum cascade lasers using a near-infrared frequency comb
Published in Optics express (05-11-2012)“…We report the measurement of the frequency noise power spectral density of a quantum cascade laser emitting at 2.5THz. The technique is based on heterodyning…”
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6
Continuous-wave coherent imaging with terahertz quantum cascade lasers using electro-optic harmonic sampling
Published in Applied physics letters (04-03-2013)“…We demonstrate a coherent imaging system based on a terahertz (THz) frequency quantum cascade laser (QCL) phase-locked to a near-infrared fs-laser comb. The…”
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7
Fluid-structure model for disks vibrating at ultra-high frequency in a compressible viscous fluid
Published 02-10-2023“…Physics of Fluids 35, 052008 (2023) Radial mechanical modes of miniature disk-shaped resonators are promising candidates for probing the ultra-high-frequency…”
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Coherent control of a semiconductor qubit in the strong coupling regime: Impact of energy and phase relaxation mechanisms
Published in Physical review. B, Condensed matter and materials physics (01-08-2009)“…We report on coherent control of the fundamental exciton state in a single quantum dot by means of two phase-locked picosecond laser pulses. By analyzing the…”
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9
Coherent sampling of active mode-locked terahertz quantum cascade lasers and frequency synthesis
Published in Nature photonics (01-06-2011)Get full text
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10
Erratum: Coherent sampling of active mode-locked terahertz quantum cascade lasers and frequency synthesis
Published in Nature photonics (31-05-2011)“…Nature Photonics 5, 306–313 (2011); published online 24 April 2011; corrected after print 26 April 2011. In the version of this Article originally published,…”
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11
Stabilization and mode locking of terahertz quantum cascade lasers
Published in IEEE journal of selected topics in quantum electronics (01-01-2013)“…We present the stabilization of terahertz (THz) quantum cascade lasers (QCLs) to a harmonic of the repetition rate of femtosecond fiber lasers. The technique…”
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12
Spectral Properties of THz Quantum-Cascade Lasers: Frequency Noise, Phase-Locking and Absolute Frequency Measurement
Published in Journal of infrared, millimeter and terahertz waves (01-06-2013)“…Quantum cascade lasers combine desirable features, namely high optical power and compactness, as no other coherent source in the field of THz generation. While…”
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13
Room-Temperature Continuous-Wave Frequency-Referenced Spectrometer up to 7.5 THz
Published 02-05-2019“…The lack of coherent room-temperature sources in the whole terahertz spectral window (0.3-10 THz) has significantly hampered the growth of scientific and…”
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14
Broadband CW nonlinear generation for metrological grade terahertz spectroscopy
Published in 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (01-06-2017)“…The terahertz (THz) spectral window, generally considered to span from 0.3 to 10 THz, is nowadays crucial for plenty of applications, from homeland security to…”
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Conference Proceeding -
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QCL-based real-time terahertz digital holography
Published in 2016 Conference on Lasers and Electro-Optics (CLEO) (01-06-2016)“…We demonstrate real-time transmission and reflection digital holography at THz frequencies exploiting the high spectral purity and the mW output power of a QCL…”
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Conference Proceeding -
16
Continuous-wave coherent imaging with terahertz quantum cascade lasers using electro-optic harmonic sampling
Published 11-04-2013“…Applied Physics Letters 102 (2013) 091107 We demonstrate a coherent imaging system based on a terahertz (THz) frequency quantum cascade laser (QCL)…”
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