1.

Record Nr.

UNINA9911020425003321

Autore

Polini Eleonora

Titolo

Broadband Quantum Noise Reduction in Advanced Virgo Plus : From Frequency-Dependent Squeezing Implementation to Detection Losses and Stray Light Mitigation / / by Eleonora Polini

Pubbl/distr/stampa

Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2025

ISBN

3-031-95143-3

Edizione

[1st ed. 2025.]

Descrizione fisica

1 online resource (321 pages)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5061

Disciplina

530.1

Soggetti

Gravitation

Quantum optics

Astrophysics

Optoelectronic devices

Gravitational Physics

Quantum Optics

Optoelectronic Devices

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Gravitational waves -- Ground based gravitational waves detectors -- Theory of quantum light in gravitational waves detectors -- Quantum noise reduction system overview in Advanced Virgo Plus -- Quantum noise reduction system commissioning -- Stray light in gravitational waves detectors -- Ghost beams study and mitigation -- Active control of scattered light on the FDS system -- Matching of the squeezing beam to the ITF -- New high finesse Output Mode Cleaner for Advanced Virgo Plus.

Sommario/riassunto

This book presents the first implementation of frequency-dependent squeezing in the Virgo gravitational wave detector, a technique that reduces quantum noise across the entire detection band. By lowering noise, it enhances Virgo’s ability to observe the universe. It provides a detailed account of the experimental optical system—spanning hundreds of meters—and the measurement campaign that led to the first observation of frequency-dependent squeezing, with ellipse



rotation occurring at the target frequency of a few tens of Hz. Additionally, the book covers the characterization and commissioning of a new Output Mode Cleaner cavity in Virgo to minimize optical losses on squeezed states. Finally, it examines the impact of stray light noise at low frequencies and explores mitigation strategies to improve detector sensitivity.

2.

Record Nr.

UNINA9911004698203321

Autore

Mather Robert R

Titolo

The Chemistry of Textile Fibres

Pubbl/distr/stampa

Cambridge, : Royal Society of Chemistry, 2010

ISBN

1-84973-741-X

1-62198-202-5

Edizione

[1st ed.]

Descrizione fisica

1 online resource (387 p.)

Altri autori (Persone)

WardmanRoger H

Disciplina

677

Soggetti

Textile fibers

Textile chemistry

Mechanical Engineering

Engineering & Applied Sciences

Industrial & Management Engineering

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di contenuto

9781847558671_publicity; i_iv; v_vii; viii; ix_xviii; 001_021; 022_060; 061_099; 100_127; 128_199; 200_232; 233_286; 287_329; 330_337; 338_346; 347_368

Sommario/riassunto

Textiles are ubiquitous materials that many of us take for granted in our everyday lives. We rely on our clothes to protect us from the environment, for modesty, to enhance our appearance and reflect our personality. Beyond these traditional applications, high-performance fibres have been specifically developed for more demanding roles in protective garments, industrial work-wear, car tyres, parachutes and artificial arteries. This is the only book to describe the chemistry of textile fibres at a level appropriate for 'A' level students and first-year



undergraduates following courses in textil