METRICA, l’archivio istituzionale della produzione scientifica dell’Istituto Nazionale di Ricerca Metrologica, ha lo scopo di raccogliere, documentare, conservare e pubblicare, anche ad accesso aperto, i prodotti della ricerca dell’Ente. METRICA utilizza la piattaforma IRIS (Institutional Research Information System) sviluppata da Cineca.

LEVI, FILIPPO
 Distribuzione geografica
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Continente #
NA - Nord America 23.593
EU - Europa 7.412
AS - Asia 1.292
Continente sconosciuto - Info sul continente non disponibili 68
SA - Sud America 53
OC - Oceania 25
AF - Africa 11
Totale 32.454
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Nazione #
US - Stati Uniti d'America 23.374
SE - Svezia 2.089
UA - Ucraina 1.407
IT - Italia 1.021
GB - Regno Unito 985
CN - Cina 826
DE - Germania 759
FR - Francia 394
FI - Finlandia 206
CA - Canada 202
IE - Irlanda 188
SG - Singapore 115
IN - India 111
RU - Federazione Russa 65
BE - Belgio 60
EU - Europa 60
PL - Polonia 59
JP - Giappone 53
CH - Svizzera 48
IL - Israele 28
RO - Romania 24
HK - Hong Kong 22
AU - Australia 20
BR - Brasile 20
BA - Bosnia-Erzegovina 19
NL - Olanda 19
ES - Italia 18
ID - Indonesia 17
VN - Vietnam 17
MX - Messico 15
TH - Thailandia 15
AR - Argentina 11
CL - Cile 9
IR - Iran 9
KR - Corea 9
NO - Norvegia 9
A2 - ???statistics.table.value.countryCode.A2??? 8
MY - Malesia 8
TR - Turchia 8
TW - Taiwan 8
PH - Filippine 7
SA - Arabia Saudita 7
AT - Austria 6
HR - Croazia 6
DK - Danimarca 5
KW - Kuwait 5
KZ - Kazakistan 5
PE - Perù 5
GR - Grecia 4
NZ - Nuova Zelanda 4
CZ - Repubblica Ceca 3
EC - Ecuador 3
EE - Estonia 3
IQ - Iraq 3
LA - Repubblica Popolare Democratica del Laos 3
SI - Slovenia 3
SK - Slovacchia (Repubblica Slovacca) 3
BO - Bolivia 2
CO - Colombia 2
EG - Egitto 2
HU - Ungheria 2
LB - Libano 2
LK - Sri Lanka 2
MD - Moldavia 2
MN - Mongolia 2
PK - Pakistan 2
TN - Tunisia 2
AE - Emirati Arabi Uniti 1
AM - Armenia 1
AO - Angola 1
BD - Bangladesh 1
BY - Bielorussia 1
CI - Costa d'Avorio 1
CR - Costa Rica 1
GA - Gabon 1
GE - Georgia 1
JO - Giordania 1
KE - Kenya 1
KG - Kirghizistan 1
LT - Lituania 1
LU - Lussemburgo 1
LV - Lettonia 1
MP - Marianne Settentrionali, isole 1
MU - Mauritius 1
OM - Oman 1
PA - Panama 1
RS - Serbia 1
SD - Sudan 1
SY - Repubblica araba siriana 1
VE - Venezuela 1
ZA - Sudafrica 1
Totale 32.454
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Città #
Cambridge 4.289
Fairfield 2.964
Woodbridge 2.237
Chandler 1.898
Houston 1.721
Ashburn 1.520
Wilmington 1.414
Seattle 1.367
Ann Arbor 1.256
Beijing 622
Jacksonville 606
Nyköping 467
San Mateo 387
Boardman 348
New York 338
Dublin 178
Dearborn 176
Toronto 175
Turin 154
Singapore 112
Strasbourg 110
London 98
Rome 90
Ogden 87
San Diego 78
Los Angeles 76
Redmond 71
Helsinki 59
Brussels 58
Kraków 53
Las Vegas 52
Hanover 47
Milan 47
Tokyo 32
Redwood City 31
West Jordan 22
Moscow 21
Prescot 20
Guangzhou 19
Florence 17
Chiswick 16
Miami 16
Paris 16
Wuhan 16
Mountain View 15
Torino 15
São Paulo 14
Berlin 13
Shanghai 13
Zhengzhou 13
Haifa 12
Kilburn 12
New Bedfont 12
Acton 11
Dong Ket 11
Norwalk 11
San Francisco 11
Teddington 11
Frankfurt am Main 10
Hounslow 10
Indiana 10
Ottawa 10
Sarajevo 10
Tappahannock 10
Andover 9
Braunschweig 9
Islington 9
Kyiv 9
Magenta 9
Midleton 9
Nanjing 9
White Plains 9
Zurich 9
Bern 8
Hefei 8
Napoli 8
Southend 8
Southwark 8
Civitavecchia 7
Dallas 7
Denver 7
St Louis 7
Vimodrone 7
Wandsworth 7
Amsterdam 6
Bangalore 6
Bologna 6
Canberra 6
Carshalton 6
Chicago 6
Clearwater 6
Hong Kong 6
Jakarta 6
Kuala Lumpur 6
Montréal 6
Munich 6
Phoenix 6
Riyadh 6
St Petersburg 6
Sydney 6
Totale 23.874
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Nome #
Ultrastable laser interferometry for earthquake detection with terrestrial and submarine cables 465
Single-Atom Optical Clock with High Accuracy 330
Metrological characterization of INRIM's Yb lattice clock 317
The Italian optical link for time and frequency 311
2006 Conference on Precision Electromagnetic Measurements 281
Direct Observation of Coherent Interorbital Spin-Exchange Dynamics 271
Enhanced temperature sensitivity in vapor-cell frequency standards 267
Geodesy and metrology with a transportable optical clock 264
Doppler-stabilized fiber link with 6 dB noise improvement below the classical limit 261
Cryogenic Fountain Development at NIST and INRIM: Preliminary Characterization 254
Pulsed optically pumped rubidium clock with high frequency-stability performance 253
Improved Set-Up for the Ytterbium Optical Clock at INRIM 252
Active Disturbance Rejection Control of Temperature for Ultrastable Optical Cavities 248
Tracking DDS for Coherent Optical Links 243
Precision test of the ac Stark shift in a rubidium atomic vapor 243
Measuring absolute frequencies beyond the GPS limit via long-haul optical frequency dissemination 243
Absolute Frequency Measurement of the 173Yb Clock Transition via a 642-km Fiber Link 238
A Coherent Fiber Link for Very Long Baseline Interferometry 238
Synthetic Dimensions and Spin-Orbit Coupling with an Optical Clock Transition 234
Generation of an Ultrastable 578 nm Laser for Yb Lattice Clock 233
Multiple wavelength stabilization on a single optical cavity using the offset sideband locking technique 233
Coherent Population Trapping Maser 229
CLONETS – Clock network services strategy and innovation for clock services over optical-fibre networks 228
Frequency Biases in Pulsed Atomic Fountain Frequency Standards Due to Spurious Components in the Microwave Spectrum 224
Systematic shift uncertainty evaluation of IEN CSF1 primary frequency standard 223
Measurement of Radiative Decay and Cold Collision Trap Losses in Laser-Cooled Ytterbium 221
Active disturbance rejection control: Application to the temperature stabilization of ultra-stable cavities 221
Efficient frequency doubling at 399  nm 220
Active disturbance rejection control: Application to the temperature stabilization of ultra-stable cavities 220
Medium-long term frequency stability of pulsed vapor cell clocks 220
Cell-related effects in the Pulsed Optically Pumped frequency standard 219
In-field Raman amplification on coherent optical fiber links for frequency metrology 216
Comment on 'Evaluation of the primary frequency standard NPL-CsF1' 216
Preliminary step for a UTC(IT) steering algorithm based on the ITCsF2 primary frequency standard measurements 215
Absolute frequency measurement of the $^1 extS_0$ – $^3 extP_0$ transition of171Yb 214
A Fiber Optic Gyroscope on Multiplexed Telecommunication Network with a Large Enclosed Area 213
Metrological characterization of the pulsed Rb clock with optical detection 212
Use of Bayesian statistics to reduce the density shift uncertainty in Cesium fountain. 212
A VLBI experiment using a remote atomic clock via a coherent fibre link 212
IEN-CsF1 primary frequency standard at INRIM accuracy evaluation and TAI calibrations 211
Yb optical lattice clock at INRIM. 211
Improved set-up for the ytterbium optical clock at INRIM 211
Electronics for the pulsed rubidium clock: Design and characterization 210
Ytterbium optical lattice clock at INRIM 209
Effect of a timebase mismatch in two-way optical frequency transfer 208
Atomic clocks based on coherent population trapping: basic theoretical models and frequency stability 205
Yellow laser performance of Dy 3+ in co-dopedDy,Tb:LiLuF4 204
Latest Improvements at INRIM Time Laboratory 204
Optical lattice clocks towards the redefinition of the second 203
A Large Area Fiber Optic Gyroscope on multiplexed fiber network 203
High-accuracy coherent optical frequency transfer over a doubled 642-km fiber link 202
Pulsed Optically Pumped Rb clock 202
Coherent-population-trapping maser: Noise spectrum and frequency stability 201
RF SPECTRUM OF A CARRIER WITH A RANDOM PHASE MODULATION OF ARBITRARY SLOPE 201
LIFT-the Italian Link for Time and Frequency 200
Reducing Cavity-Pulling Shift in Ramsey-Operated Compact Clocks 200
Double-pass acousto-optic modulator system 200
Measurement of the blackbody shift in the IEN Cs fountain 200
Frequency-stability performances of the pulsed optically pumped rubidium clock: Recent results and future perspectives 200
Precision Atomic Spectroscopy for Improved Limits on Variation of the Fine Structure Constant and Local Position Invariance 199
null 196
Physics characterization and frequency stability of the pulsed rubidium maser 194
Ytterbium optical lattice clock at INRIM 194
The cryogenic fountain ITCsF2 194
Accuracy evaluation of ITCsF2: a nitrogen cooled caesium fountain 191
Bayesian estimate of the zero-density frequency of a Cs fountain 190
Gravitational red-shift at INRIM 190
Bayesian inference of a negative quantity from positive measurement results 190
Ramsey-fringe shape in an alkali-metal vapor cell with buffer gas 189
Absolute frequency measurement of the 1S0 – 3P0 transition of 171Yb with a link to International Atomic Time 189
Pulsed optically pumped Rb-87 vapor cell frequency standard: A multilevel approach 188
Frequency transfer via a two-way optical phase comparison on a multiplexed fiber network 188
Distributed Raman Amplification for Long-Haul Optical Frequency Dissemination 187
ac Stark shift measurements of the clock transition in cold Cs atoms: Scalar and tensor light shifts of theD2transition 186
Pulsed Optically Pumped Rb clock with optical detection: first results 186
Comparing room temperature and cryogenic cesium fountains 185
Fiber Raman amplification for metrological transfer of phasecoherent optical frequencies 185
Yellow solid state laser for Yb atomic clock application 183
Microwave leakage-induced frequency shifts in the primary frequency standards NIST-F1 and IEN-CSF1 183
Optical Frequency Link between Torino and Firenze for remote comparison between Yb and Sr optical clocks 182
Coherent population trapping in cesium: Dark lines and coherent microwave emission 181
Optical frequency transfer over submarine fiber links 181
Comb-assisted cavity ring-down spectroscopy of a buffer-gas-cooled molecular beam 181
Planar-waveguide external cavity laser stabilization for an optical link with 10^-19 frequency stability 180
Optical-to-microwave frequency comparison with fractional uncertainty of 10(-15) 180
CPT maser clock evaluation for Galileo 179
Spin-exchange frequency shift in alkali-metal-vapor cell frequency standards 179
Intercontinental comparison of optical atomic clocks through very long baseline interferometry 179
Reduction of the cold collisions frequency shift in a multiple velocity fountain: a new proposal 177
Kr-based buffer gas for Rb vapor-cell clocks 175
Improvements on the UTC(IT) timescale at INRIM 172
Dark-line in optically-thick vapors: inversion phenomena and line width narrowing 172
Slow light and superluminality in the coherent population trapping maser 170
Low Noise Optical Link Development at INRIM. 170
Theory of the coherent population trapping maser:  A strong-field self-consistent approach 170
Subcollisional linewidth observation in the coherent-population-trapping Rb maser 169
The multiple velocity fountain: a new scheme for the cold collision frequency shift reduction 169
Realization of an ultrastable 578-nm laser for an Yb lattice clock 169
The light shift effect in the coherent population trapping cesium maser 168
Improving short and long term stability of pulsed optically pumped vapor cell frequency standards 167
Totale 21.156
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Categoria #
all - tutte 153.268
article - articoli 0
book - libri 0
conference - conferenze 0
curatela - curatele 0
other - altro 0
patent - brevetti 0
selected - selezionate 0
volume - volumi 0
Totale 153.268
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2018/2019995 0 0 0 0 0 0 0 0 0 0 549 446
2019/20208.198 207 464 1.168 2.656 670 519 525 302 612 475 557 43
2020/20215.046 610 151 749 60 641 201 820 338 632 433 284 127
2021/20223.643 695 159 122 241 307 168 378 296 390 380 156 351
2022/20234.493 221 294 397 443 492 816 54 501 775 111 196 193
2023/20242.769 187 290 469 225 196 147 421 240 426 111 57 0
Totale 33.005