Noise Properties of Coherent Perfect Absorbers and Critically-coupled Resonators
arXiv:1211.7147 · doi:10.1103/PhysRevA.87.013843
Abstract
The performance of a coherent perfect absorber (time-reversed laser) is limited by quantum and thermal noise. At zero temperature, the quantum shot noise dominates the signal for frequencies close to the resonance frequency, and both vanish exactly at the resonance frequency. We compute the sensitivity of the absorbing cavity as a background-free detector, limited by finite signal or detector bandwidth.
arXiv comment6 pages, 3 figures
References in corpus (7)
- Introduction to Quantum Noise, Measurement and Amplification
- Coherent Perfect Absorbers: Time-reversed Lasers
- Thermal radiation and amplified spontaneous emission from a random medium
- Hidden Black: Coherent Enhancement of Absorption in Strongly-scattering Media
- Coherent perfect absorption in a homogeneously-broadened two-level medium
- Transport of quantum noise through random media
- General linewidth formula for steady-state multimode lasing in arbitrary cavities
Cited by in corpus (7)
- Coherent perfect absorbers: linear control of light with light
- Theory of reflectionless scattering modes
- Coherent optical control of polarization with a critical metasurface
- Contrasting Spectral Signatures and Sensitivities of CPA-Lasing in a -Symmetric Periodic Structure
- Generalized Sub-Schawlow-Townes Laser Linewidths Via Material Dispersion
- High-Order Perfect Absorption in the Absence of Exceptional Point
- Nonlinear Coherent Perfect Absorption