2003/02/21 by Peter Fritschel · 2 citations
Engineering · Physics and Astronomy · #Advanced Frequency and Time Standards #Astronomical Observations and Instrumentation #Astronomical interferometer #Astronomy #Broadband #Electronic engineering #Engineering #Geophysics and Sensor Technology #Gravitational wave #Gravitational-wave observatory #Interferometry #LIGO #Laser #Narrowband #Observatory #Optics #Physics #Sensitivity (control systems) #gr-qc
paper · pdf · doi:10.1117/12.459090
published as Proceedings of SPIE Vol. 4856 "Gravitational Wave Detection", edited by Mike Cruise, Peter Saulson, (SPIE, Bellingham, WA, 2003) pp 282-291 · Proceedings of the SPIE conference on Astronomical Telescopes and Instrumentations, 22-28 Aug 2002, Waikoloa, HI, USA
openalex publication_date 2003/02/21 · arxiv created 2003/08/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The interferometers being planned for second generation LIGO promise and order of magnitude increase in broadband strain sensitivity--with the corresponding cubic increase in detection volume--and an extension of the observation band to lower frequencies. In addition, one of the interferometers may be designed for narrowband performance, giving further improved sensitivity over roughly an octave band above a few hundred Hertz. This article discusses the physics and technology of these new interferometer designs, and presents their projected sensitivity spectra.