scholarly journals Aqueye+: a new ultrafast single photon counter for optical high time resolution astrophysics

2015 ◽  
Author(s):  
L. Zampieri ◽  
G. Naletto ◽  
C. Barbieri ◽  
E. Verroi ◽  
M. Barbieri ◽  
...  
Keyword(s):  
Time Resolution ◽  
Single Photon ◽  
High Time ◽  
High Time Resolution ◽  
Photon Counter

scholarly journals Review of the ultrafast time resolution photopolarimeters based on SPADs

2013 ◽  
Vol 9 (S301) ◽  
pp. 487-488
Author(s):  
Aga Słowikowska ◽  
Gottfried Kanbach ◽  
Krzysztof Goździewski ◽  
Krzysztof Krzeszowski ◽  
Arne Rau
Keyword(s):  
Time Resolution ◽  
Single Photon ◽  
Cataclysmic Variables ◽  
High Time ◽  
High Time Resolution ◽  
Time Of Arrival ◽  
Crab Pulsar ◽  
Periodic Oscillations ◽  
Avalanche Diodes ◽  
Optical Photons

AbstractWe review photopolarimeters that are based on the Single Photon Avalanche Diodes (SPADs) and were designed, built, developed, and extensively used for high time resolution studies of astrophysical sources. Examples of such detectors are OPTIMA, GASP, AquEYE, and IquEYE which can measure the time of arrival of single optical photons with an accuracy of down to 50 picoseconds. We describe the most exciting results obtained with the SPADs detectors starting from the best existing optical polarimetric measurements of the Crab pulsar, the discovery of the first optical magnetar and its quasi-periodic oscillations, as well as a verification of exoplanets around eclipsing cataclysmic variables. Additionally, we discuss possible applications of such detectors for asteroseismology.

scholarly journals Spin-down rate of the transitional millisecond pulsar PSR J1023+0038 in the optical band with Aqueye+

2020 ◽  
Vol 498 (1) ◽  
pp. L98-L103
Author(s):  
Aleksandr Burtovoi ◽  
Luca Zampieri ◽  
Michele Fiori ◽  
Giampiero Naletto ◽  
Alessia Spolon ◽  
...  
Keyword(s):  
Time Resolution ◽  
Timing Analysis ◽  
High Time ◽  
Optical Data ◽  
High Time Resolution ◽  
Millisecond Pulsar ◽  
Photon Counter ◽  
X Ray ◽  
Radio Band

ABSTRACT We present a timing analysis of the transitional millisecond pulsar PSR J1023+0038 using observations taken between 2018 January and 2020 January with the high time resolution photon counter Aqueye+ mounted at the 1.82 m Copernicus telescope in Asiago. We report the first measurement of the timing solution and the frequency derivative of PSR J1023+0038 based entirely on optical data. The spin-down rate of the pulsar is (−2.53 ± 0.04) × 10−15 Hz2, which is ∼20 per cent slower than that measured from the X-ray observations taken in 2013–2016 and ∼5 per cent faster than that measured in the radio band during the rotation-powered state.

scholarly journals Astronomical Performances of the Mepsicron, A New Large Area Imaging Photon Counter

1984 ◽  
Vol 78 ◽  
pp. 177-180
Author(s):  
C. Firmani ◽  
L. Gutiérrez ◽  
E. Ruíz ◽  
L. Salas ◽  
G.F. Bisiacchi ◽  
...  
Keyword(s):  
High Resolution ◽  
Time Resolution ◽  
Photon Counting ◽  
High Time ◽  
High Time Resolution ◽  
Spectroscopic Techniques ◽  
Position Sensor ◽  
Large Area ◽  
Photon Counter ◽  
Fabry Perot

The new detector MEPSICRON (microchannel electron position sensor with time resolution) is an image photomultiplier sensor for high spatial and time resolution, working in a photon counting regime. It has been especially designed for deep sky photometric pictures, for high resolution spectrophotometry with single or crossed dispersion spectrographs for long slit spectroscopic techniques, for high time resolution pictures and spectrophotometry especially related with speckles techniques and very fast varying sources as pulsars, and for Fabry-Pérot interferometry.

Solar Corona Investigation by the Coronal Line Photometer at Lomnický Peak

1994 ◽  
Vol 144 ◽  
pp. 431-434
Author(s):  
M. Minarovjech ◽  
M. Rybanský
Keyword(s):  
Solar Corona ◽  
Time Resolution ◽  
Active Regions ◽  
High Time ◽  
High Time Resolution ◽  
List Type ◽  
Type Number ◽  
Coronal Line ◽  
Global Cycle

AbstractThis paper deals with a possibility to use the ground-based method of observation in order to solve basic problems connected with the solar corona research. Namely:1.heating of the solar corona2.course of the global cycle in the corona3.rotation of the solar corona and development of active regions.There is stressed a possibility of high-time resolution of the coronal line photometer at Lomnický Peak coronal station, and use of the latter to obtain crucial observations.

Discovery of the fast optical variability of GRB 080319B and the prospects for wide-field optical monitoring with high time resolution

2010 ◽  
Vol 180 (4) ◽  
pp. 424 ◽  
Author(s):  
G.M. Beskin ◽  
S.V. Karpov ◽  
S.F. Bondar ◽  
V.L. Plokhotnichenko ◽  
A. Guarnieri ◽  
...  
Keyword(s):  
Time Resolution ◽  
High Time ◽  
High Time Resolution ◽  
Optical Variability ◽  
Wide Field ◽  
Optical Monitoring

scholarly journals Detecting telecom single photons with 99.5−2.07+0.5% system detection efficiency and high time resolution

APL Photonics ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 036114
Author(s):  
J. Chang ◽  
J. W. N. Los ◽  
J. O. Tenorio-Pearl ◽  
N. Noordzij ◽  
R. Gourgues ◽  
...  
Keyword(s):  
Time Resolution ◽  
Detection Efficiency ◽  
High Time ◽  
High Time Resolution ◽  
Single Photons
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