Prof. Francesco Marin Profile

Prof. Francesco Marin

at Univ degli Studi di Firenze

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 21 May 2015 Paper

Low loss optomechanical cavities based on silicon oscillator

A. Borrielli, A. Pontin, F. Cataliotti, L. Marconi, F. Marin, F. Marino, G. Pandraud, G. Prodi, E. Serra, M. Bonaldi

Proceedings Volume 9517, 95171O (2015) https://doi.org/10.1117/12.2178821

KEYWORDS: Mirrors, Oscillators, Silicon, Cryogenics, Optical coatings, Computer aided design, Semiconducting wafers, Coating, Reflectivity, Microfabrication

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In an optomechanical cavity the optical and mechanical degree of freedom are strongly coupled by the radiation pressure of the light. This field of research has been gathering a lot of momentum during the last couple of years, driven by the technological advances in microfabrication and the first observation of quantum phenomena. These results open new perspectives in a wide range of applications, including high sensitivity measurements of position, acceleration, force, mass, and for fundamental research. We are working on low frequency pondero-motive light squeezing as a tool for improving the sensitivity of audio frequency measuring devices such as magnetic resonance force microscopes and gravitational-wave detectors. It is well known that experiments aiming to produce and manipulate non-classical (squeezed) light by effect of optomechanical interaction need a mechanical oscillator with low optical and mechanical losses. These technological requirements permit to maximize the force per incoming photon exerted by the cavity field on the mechanical element and to improve the element’s response to the radiation pressure force and, at the same time, to decrease the influence of the thermal bath. In this contribution we describe a class of mechanical devices for which we measured a mechanical quality factor up to 1.2 × 10⁶ and with which it was possible to build a Fabry-Perot cavity with optical finesse up to 9 × 10⁴. From our estimations, these characteristics meet the requirements for the generation of radiation squeezing and quantum correlations in the ∼ 100kHz region. Moreover our devices are characterized by high reproducibility to allow inclusion in integrated systems. We show the results of the characterization realized with a Michelson interferometer down to 4.2K and measurements in optical cavities performed at cryogenic temperature with input optical powers up to a few mW. We also report on the dynamical stability and the thermal response of the system.

Proceedings Article | 17 May 2013 Paper

Design strategies of opto-mechanical micro oscillators for the detection of the ponderomotive squeezing

A. Borrielli, M. Bonaldi, E. Serra, A. Bagolini, M. Boscardin, F. Cataliotti, F. Marin, F. Marino, A. Pontin, G. A. Prodi

Proceedings Volume 8763, 87632R (2013) https://doi.org/10.1117/12.2017412

KEYWORDS: Mirrors, Oscillators, Coating, Resonators, Semiconducting wafers, Silicon, Radiation effects, Cryogenics, Reflectivity, Optical coatings

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The interaction of the radiation pressure with micro-mechanical oscillators is earning a growing interest for its wide-range applications (including high sensitivity measurements of force and position) and for fundamental research (entanglement, ponderomotive squeezing, quantum non-demolition measurements). In this contribution we describe the fabrication of a family of opto-mechanical devices specifically designed to ease the detection of ponderomotive squeezing and of entanglement between macroscopic objects and light. These phenomena are not easily observed, due to the overwhelming effects of classical noise sources of thermal origin with respect to the weak quantum fluctuations of the radiation pressure. Therefore, a low thermal noise background is required, together with a weak interaction between the micro-mirror and this background (i.e. high mechanical quality factors). The device should also be capable to manage a relatively large amount of dissipated power at cryogenic temperatures, as the use of a laser with power up to a ten of mW can be useful to enhance radiation pressure effects. In the development of our opto-mechanical devices, we are exploring an approach focused on relatively thick silicon oscillators with high reflectivity coating. The relatively high mass is compensated by the capability to manage high power at low temperatures, owing to a favourable geometric factor (thicker connectors) and the excellent thermal conductivity of silicon crystals at cryogenic temperature. We have measured at cryogenic temperatures mechanical quality factors up to 10⁵ in a micro-oscillator designed to reduce as much as possible the strain in the coating layer and the consequent energy dissipation. This design improves an approach applied in micro-mirror and micro-cantilevers, where the coated surface is reduced as much as possible to improve the quality factor. The deposition of the highly reflective coating layer has been carefully integrated in the micromachining process to preserve its low optical losses: an optical finesse of F = 6×10⁴ has been measured in a Fabry-Perot cavity with the micro-resonator used as end mirror.

Proceedings Article | 1 September 2004 Paper

Time scales of polarization switching in different types of VCSELs

Guy Verschaffelt, Michael Peeters, Javier Cordova, Bob Nagler, Jan Albert, Hugo Thienpont, Irina Veretennicoff, Jan Danckaert, Giovanni Giacomelli, Francesco Marin

Proceedings Volume 5452, (2004) https://doi.org/10.1117/12.545608

KEYWORDS: Picosecond phenomena, Vertical cavity surface emitting lasers, Switching, Modulation, Polarization, Thermal effects, Promethium, Switches, Dichroic materials, Stochastic processes

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Proceedings Article | 1 September 2004 Paper

Single-mode low frequency fluctuations in vertical cavity surface emitting lasers with polarization-filtered feedback

Miguel Cornelles Soriano, Mirvais Yousefi, Marco Romanelli, Giovanni Giacomelli, Francesco Marin

Proceedings Volume 5452, (2004) https://doi.org/10.1117/12.545468

KEYWORDS: Polarization, Vertical cavity surface emitting lasers, Laser damage threshold, Semiconductor lasers, Polarizers, Electro optical modeling, Picosecond phenomena, Dichroic materials, Surface plasmons, Mirrors

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Proceedings Article | 6 October 2003 Paper

Laser system for the AURIGA detector optical transduction chain

L. Conti, M. De Rosa, Francesco Marin

Proceedings Volume 5137, (2003) https://doi.org/10.1117/12.518103

KEYWORDS: Sensors, Laser systems engineering, Ferroelectric materials, Chlorine, Laser stabilization, Optical fibers, Information operations, Transducers, Zerodur, Mirrors

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Proceedings Article | 25 July 2003 Paper

Polarization mode hopping in vertical-cavity surface-emitting lasers induced by optical feedback

Krassimir Panajotov, Marc Sciamanna, Andrzej Tabaka, Patrice Megret, Hugo Thienpont, Michel Blondel, Irina Veretennicoff, Giovanni Giacomelli, Francesco Marin

Proceedings Volume 4986, (2003) https://doi.org/10.1117/12.474388

KEYWORDS: Polarization, Vertical cavity surface emitting lasers, Switching, Laser systems engineering, Picosecond phenomena, Mirrors, Semiconductor lasers, Switches, Stochastic processes, Laser optics

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Proceedings Article | 16 May 2003 Paper

Frequency noise in 850-nm oxidized VCSELs

Jean-Philippe Tourrenc, Philippe Signoret, Mikhael Myara, Francesco Marin, Kent Choquette, Robert Alabedra

Proceedings Volume 5111, (2003) https://doi.org/10.1117/12.500512

KEYWORDS: Vertical cavity surface emitting lasers, Resistance, Oxides, Laser damage threshold, Semiconductor lasers, Resonators, Photodiodes, Transmission electron microscopy, Spectrum analysis, External quantum efficiency

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Proceedings Article | 15 April 2003 Paper

Comparison of thermal and polarization switching frequency response in VCSELs

Guy Verschaffelt, Jan Albert, Bob Nagler, Michael Peeters, Hugo Thienpont, Irina Veretennicoff, Jan Danckaert, Sylvain Barbay, Giovanni Giacomelli, Francesco Marin

Proceedings Volume 4942, (2003) https://doi.org/10.1117/12.468469

KEYWORDS: Picosecond phenomena, Vertical cavity surface emitting lasers, Modulation, Polarization, Switching, Promethium, Thermal effects, Switches, Stochastic processes, Photonics

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Proceedings Article | 15 April 2003 Paper

Effect of polarized optical feedback on VCSELs

Marco Romanelli, Giovanni Giacomelli, Francesco Marin

Proceedings Volume 4942, (2003) https://doi.org/10.1117/12.468471

KEYWORDS: Polarization, Laser damage threshold, Vertical cavity surface emitting lasers, Surface plasmons, Analog electronics, Numerical simulations, Laser optics, Pulsed laser operation, Semiconductor lasers, Avalanche photodetectors

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Proceedings Article | 4 June 2002 Paper

Frequency response of current modulation induced polarization switching in VCSELs

Guy Verschaffelt, Jan Albert, Krassimir Panajotov, Bob Nagler, Michael Peeters, Hugo Thienpont, Irina Veretennicoff, Jan Danckaert, Sylvain Barbay, Giovanni Giacomelli, Francesco Marin

Proceedings Volume 4649, (2002) https://doi.org/10.1117/12.469240

KEYWORDS: Picosecond phenomena, Modulation, Vertical cavity surface emitting lasers, Polarization, Switching, Promethium, Switches, Thermal effects, Stochastic processes, Photonics

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Proceedings Article | 4 May 2001 Paper

Polarization switching dynamics in single-mode VCSELs

Jan Albert, Krassimir Panajotov, Guy Verschaffelt, Bob Nagler, Hugo Thienpont, Irina Veretennicoff, Jan Danckaert, Sylvain Barbay, Giovanni Giacomelli, Francesco Marin, Fabrice Monti di Sopra, Sven Eitel

Proceedings Volume 4286, (2001) https://doi.org/10.1117/12.424812

KEYWORDS: Vertical cavity surface emitting lasers, Switching, Polarization, Picosecond phenomena, Stochastic processes, Photonics, Mathematical modeling, Avalanche photodetectors, Oscilloscopes, Bistability

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Proceedings Article | 4 May 2001 Paper

Frequency noise and lineshape of VCSELs

Silvia Viciani, Francesco Marin

Proceedings Volume 4286, (2001) https://doi.org/10.1117/12.424796

KEYWORDS: Vertical cavity surface emitting lasers, Transmission electron microscopy, Semiconductor lasers, Mirrors, Polarization, Solids, Fabry–Perot interferometers, Signal detection, Laser applications, Spectrum analysis

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Proceedings Article | 4 May 2001 Paper

Noise-assisted binary information transmission with VCSELs

Francesco Marin, Sylvain Barbay, Giovanni Giacomelli

Proceedings Volume 4286, (2001) https://doi.org/10.1117/12.424807

KEYWORDS: Information operations, Vertical cavity surface emitting lasers, Binary data, Polarization, Interference (communication), Signal detection, Signal to noise ratio, Amplitude modulation, Modulation, Signal processing

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Proceedings Article | 9 March 2001 Paper

Noise enhancement of optical binary signal transmission

Sylvain Barbay, Giovanni Giacomelli, Francesco Marin

Proceedings Volume 4354, (2001) https://doi.org/10.1117/12.418819

KEYWORDS: Binary data, Modulation, Signal detection, Interference (communication), Polarization, Vertical cavity surface emitting lasers, Amplitude modulation, Signal to noise ratio, Stochastic processes, Optical communications

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Proceedings Article | 19 July 1999 Paper

Experimental evidence of stochastic resonance in vertical-cavity surface-emitting lasers

Sylvain Barbay, Giovanni Giacomelli, Francesco Marin

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354759

KEYWORDS: Vertical cavity surface emitting lasers, Stochastic processes, Modulation, Polarization, Interference (communication), Sensors

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Proceedings Article | 19 November 1993 Paper

Line-narrowing and fast modulation of AlGaAs and InGaAlP semiconductor diode lasers

Guglielmo Tino, Massimo Inguscio, Francesco Pavone, Francesco Marin

Proceedings Volume 1985, (1993) https://doi.org/10.1117/12.162814

KEYWORDS: Semiconductor lasers, Modulation, Semiconductors, Aluminium gallium indium phosphide, Visible radiation, Applied research, Spectroscopy, Telecommunications, Frequency modulation, Spectroscopes

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Proceedings Article | 24 September 1993 Paper

Atomic and molecular spectroscopy and the new generation of semiconductor diode lasers

Massimo Inguscio, Francesco Marin, Francesco Pavone, Guglielmo Tino

Proceedings Volume 1711, (1993) https://doi.org/10.1117/12.155655

KEYWORDS: Semiconductor lasers, Spectroscopy, Diodes, Dye lasers, Laser stabilization, Visible radiation, Photodiodes, Absorption, Diffraction gratings, Laser development

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Showing 5 of 17 publications

Conference Committee Involvement (1)

VCSELs and Optical Interconnects

30 October 2002 | Bruges, Belgium

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