Dr. Katharina-Sophie Isleif

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Vorträge


2020

Isleif, Katharina-Sophie; collaboration ALPS,

Virtual Lab Tour - ALPS Vortrag

05.11.2020, (Physikerinnentagung 2020, Hamburg).

Abstract | BibTeX

@misc{Isleif2020b,
title = {Virtual Lab Tour - ALPS},
author = {Katharina-Sophie Isleif and collaboration ALPS},
year = {2020},
date = {2020-11-05},
abstract = {Virtuelle Labortour durch die HERA-Tunnel West: Mittels optischer Technologien der Gravitationswellendetektoren sollen mit dem Hochpräzision-Experiment „ALPSII" Axion-ähnliche Teilchen am DESY nachgewiesen werden.},
note = {Physikerinnentagung 2020, Hamburg},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen

Virtuelle Labortour durch die HERA-Tunnel West: Mittels optischer Technologien der Gravitationswellendetektoren sollen mit dem Hochpräzision-Experiment „ALPSII" Axion-ähnliche Teilchen am DESY nachgewiesen werden.

Schließen

Isleif, Katharina-Sophie

ALPS II: Any light particle search Vortrag

28.04.2020, (Quantum Universe Day, Cluster of Excellence, University of Hamburg & DESY).

BibTeX

@misc{Isleif2020,
title = {ALPS II: Any light particle search },
author = {Katharina-Sophie Isleif },
year = {2020},
date = {2020-04-28},
note = {Quantum Universe Day, Cluster of Excellence, University of Hamburg & DESY},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen


2019

Isleif, Katharina-Sophie

Outreach Talk: Gravitationswellen Vortrag

01.09.2019, (Outreach Talk for Students, In the context of the Cluster "Quantum Universe" of the University of Hamburg).

Links | BibTeX

@misc{outreachIsleif,
title = {Outreach Talk: Gravitationswellen},
author = {Katharina-Sophie Isleif },
url = {https://katharinasophieisleif.net/wp-content/uploads/2020/07/20200104_GW_outreach.pdf},
year = {2019},
date = {2019-09-01},
note = {Outreach Talk for Students, In the context of the Cluster "Quantum Universe" of the University of Hamburg},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen

  • https://katharinasophieisleif.net/wp-content/uploads/2020/07/20200104_GW_outreac[...]

Schließen


2018

Isleif, Katharina-Sophie

Laser interferometry for LISA & satellite geodesy missions Vortrag

16.05.2018, (PhD defense at the Leibniz Universität Hannover, Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Germany).

BibTeX

@misc{Isleif2018,
title = {Laser interferometry for LISA & satellite geodesy missions},
author = {Katharina-Sophie Isleif },
year = {2018},
date = {2018-05-16},
note = {PhD defense at the Leibniz Universität Hannover, Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Germany},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen


2017

Isleif, Katharina-Sophie

Advanced optics for space interferometry Vortrag

30.08.2017, (Evaluation of the International Max Planck Research School (IMPRS), Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Germany).

BibTeX

@misc{Isleif2017,
title = {Advanced optics for space interferometry},
author = {Katharina-Sophie Isleif },
year = {2017},
date = {2017-08-30},
note = {Evaluation of the International Max Planck Research School (IMPRS), Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Germany},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen

Isleif, Katharina-Sophie

Upscalable optical test mass readout via deep frequency modulation interferometry Vortrag

14.07.2017, (12th Edoardo Amaldi Conference, Pasadena, Kalifornien, USA).

BibTeX

@misc{Isleif2017b,
title = {Upscalable optical test mass readout via deep frequency modulation interferometry},
author = {Katharina-Sophie Isleif },
year = {2017},
date = {2017-07-14},
note = {12th Edoardo Amaldi Conference, Pasadena, Kalifornien, USA},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen


2016

Isleif, Katharina-Sophie

The LISA backlink - Comparing optical phase reference systems Vortrag

06.09.2016, (LISA Symposium, ETH, Zurich, Switzerland).

BibTeX

@misc{Isleif2016b,
title = {The LISA backlink - Comparing optical phase reference systems},
author = {Katharina-Sophie Isleif },
year = {2016},
date = {2016-09-06},
note = {LISA Symposium, ETH, Zurich, Switzerland},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen

Isleif, Katharina-Sophie

The journey to noise reduced and ultra stable interferometers Vortrag

01.03.2016, (Deutsch-Physikalische-Gesellschaft Frühjahrestagung, Hannover, Germany).

Abstract | BibTeX

@misc{Isleif2016c,
title = {The journey to noise reduced and ultra stable interferometers},
author = {Katharina-Sophie Isleif},
year = {2016},
date = {2016-03-01},
abstract = {Laser interferometry achieving pm/$\sqrt{\mathrm{Hz}}$ sensitivities in the mHz-frequency range is the key technology for satellite missions in the area of gravitational wave detection and geodesy, but it requires sophisticated interferometer layouts that suppress classical interferometer noise sources like scattered light, ghost beams, laser frequency noise and misalignments just by design.
We present the recipe for a successful low-noise interferometer construction, starting with a digital design of the interferometer using the C++ library IfoCad, followed by an optimisation in which we are looking at the simulated interferometer data. Different optimisation parameters, like the overall interferometer architecture, the usage of wedged components and the correct positions, are discussed on the basis of two examples: A Mach-Zehnder interferometer used for the test mass readout in future geodesy missions via deep frequency modulation interferometry, and the 3-Backlink-Setup, an experiment for the laser interferometer space antenna (LISA). The interferometer construction combines the manufacture of a template, a thermally stable quasi-monolithic assembly of the components and a Coordinate Measuring Machine.
We compare the simulation with a setup assembled by hand and an optimally designed interferometer.},
note = {Deutsch-Physikalische-Gesellschaft Frühjahrestagung, Hannover, Germany},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen

Laser interferometry achieving pm/$sqrt{mathrm{Hz}}$ sensitivities in the mHz-frequency range is the key technology for satellite missions in the area of gravitational wave detection and geodesy, but it requires sophisticated interferometer layouts that suppress classical interferometer noise sources like scattered light, ghost beams, laser frequency noise and misalignments just by design.
We present the recipe for a successful low-noise interferometer construction, starting with a digital design of the interferometer using the C++ library IfoCad, followed by an optimisation in which we are looking at the simulated interferometer data. Different optimisation parameters, like the overall interferometer architecture, the usage of wedged components and the correct positions, are discussed on the basis of two examples: A Mach-Zehnder interferometer used for the test mass readout in future geodesy missions via deep frequency modulation interferometry, and the 3-Backlink-Setup, an experiment for the laser interferometer space antenna (LISA). The interferometer construction combines the manufacture of a template, a thermally stable quasi-monolithic assembly of the components and a Coordinate Measuring Machine.
We compare the simulation with a setup assembled by hand and an optimally designed interferometer.

Schließen


2015

Isleif, Katharina-Sophie

Phase modulation techniques for multi-fringe interferometry Vortrag

22.06.2015, (11th Edoardo Amaldi Conference, Gwangju, South Corea).

Abstract | BibTeX

@misc{Isleif2015,
title = {Phase modulation techniques for multi-fringe interferometry},
author = {Katharina-Sophie Isleif },
year = {2015},
date = {2015-06-22},
abstract = {Experiments for space and ground-based gravitational wave detectors often require large dynamic range interferometric position readout of test masses with pm/sqrtHz precision over long time scales. Heterodyne interferometer schemes that achieve such precisions are available, but they require complex optical set-ups, which limits their scalability for multiple channels. 
We discuss alternative interferometer techniques that were investigated in recent years, which use phase modulation schemes and complex digital readout algorithms to decrease the complexity of optical set-ups. 
As highlight we present the first experimental results on deep frequency modulation, a new technique that combines sinusoidial laser frequency modulation in unequal arm-length interferometers with a non-linear fit of the amplitudes of the modulation frequency harmonics, an algorithm first developed for deep phase modulation. 
This scheme requires very few optical components in the phase critical beam path and promises simple scalability for  future multi-degree of freedom readouts of test masses.},
note = {11th Edoardo Amaldi Conference, Gwangju, South Corea},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen

Experiments for space and ground-based gravitational wave detectors often require large dynamic range interferometric position readout of test masses with pm/sqrtHz precision over long time scales. Heterodyne interferometer schemes that achieve such precisions are available, but they require complex optical set-ups, which limits their scalability for multiple channels. 
We discuss alternative interferometer techniques that were investigated in recent years, which use phase modulation schemes and complex digital readout algorithms to decrease the complexity of optical set-ups. 
As highlight we present the first experimental results on deep frequency modulation, a new technique that combines sinusoidial laser frequency modulation in unequal arm-length interferometers with a non-linear fit of the amplitudes of the modulation frequency harmonics, an algorithm first developed for deep phase modulation. 
This scheme requires very few optical components in the phase critical beam path and promises simple scalability for  future multi-degree of freedom readouts of test masses.

Schließen


2013

Isleif, Katharina-Sophie

Digitally enhanced heterodyne interferometry Vortrag

15.03.2013, (Deutsch-Physikalische-Gesellschaft Frühjahrestagung, Hannover, Germany).

BibTeX

@misc{Isleif2013,
title = {Digitally enhanced heterodyne interferometry},
author = {Katharina-Sophie Isleif },
year = {2013},
date = {2013-03-15},
note = {Deutsch-Physikalische-Gesellschaft Frühjahrestagung, Hannover, Germany},
keywords = {},
pubstate = {published},
tppubtype = {presentation}
}

Schließen

über mich

                       
 

Ich bin experimentelle Physikerin aus Hannover mit Schwerpunkt Laserinterferometrie für Gravitationsmessungen. Mein persönliches Interesse liegt in der Entwicklung und Erforschung innovativer Interferometertechniken um kleinste Gravitationsänderungen auf der Erde, von der Erde und im Weltraum messbar zu machen. Oder kann man hiermit etwa sogar Dunkle Materie messen… ?

Neueste Beiträge

  • Simulation von Interferometern
  • Verlobter im Hamburger Abendblatt
  • Meine erste eigene Lehrveranstaltung

Interessen

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