White-light cavities, atomic phase coherence, and gravitational wave detectors

[摘要] We propose a new concept to realize optical cavities with large buildup but broadband response (white-light cavities) using atomic phase coherence, We demonstrate that strongly driven double-Lambda systems can show negative dispersion without absorption, which is needed in order to compensate for the variation of the wavelength with frequency. Internal buildup profiles and the cavity bandwidth of standard devices and white-light cavities will be briefly compared, These devices may be useful to improve the bandwidth and sensitivity of future generations of laser interferometric gravitational wave detectors.

[发布日期] 1997-01-15

[关键词] atomic phase coherence;gravitational wave detector;white-light cavity;negative dispersion;vanishing absorption;four-level system