Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Far-field superresolution of thermal sources by double homodyne or double array homodyne detection
View through CrossRef
We propose two schemes for estimating the separation of two thermal sources via double homodyne and double array homodyne detection considering the joint measurement of conjugate quadratures of the image plane field.By using the Cramér–Rao bound, we demonstrate that the two schemes can estimate the separation well below the Rayleigh limit and have an advantage over direct imaging when the average photon number per source exceeds five.For arbitrary source strengths, double homodyne detection is superior to homodyne detection when the separation is above 25/4σ/N
s
, σ is the beam width, N
s
is the average photon number per source.A larger separation can be estimated better via double array homodyne detection with the superiority of flexible operation compared with other schemes. High-speed and high-efficiency detection enables the measurement schemes with potential practical applications in fluorescence microscopy, astronomy and quantum imaging.
Optica Publishing Group
Title: Far-field superresolution of thermal sources by double homodyne or double array homodyne detection
Description:
We propose two schemes for estimating the separation of two thermal sources via double homodyne and double array homodyne detection considering the joint measurement of conjugate quadratures of the image plane field.
By using the Cramér–Rao bound, we demonstrate that the two schemes can estimate the separation well below the Rayleigh limit and have an advantage over direct imaging when the average photon number per source exceeds five.
For arbitrary source strengths, double homodyne detection is superior to homodyne detection when the separation is above 25/4σ/N
s
, σ is the beam width, N
s
is the average photon number per source.
A larger separation can be estimated better via double array homodyne detection with the superiority of flexible operation compared with other schemes.
High-speed and high-efficiency detection enables the measurement schemes with potential practical applications in fluorescence microscopy, astronomy and quantum imaging.
Related Results
Thermal Effects in High Compactness CEA Stack
Thermal Effects in High Compactness CEA Stack
Thermal management is a pivotal aspect of stack durability and system operability. Consequently, understanding the thermal mapping within a stack based on its operating conditions ...
Large-field Astronomical Image Restoration and Superresolution Reconstruction using Deep Learning
Large-field Astronomical Image Restoration and Superresolution Reconstruction using Deep Learning
Abstract
The existing astronomical image restoration and superresolution reconstruction methods have problems such as low efficiency and poor results when dealing wi...
Dynamic Spike Superresolution and Applications to Ultrafast Ultrasound Imaging
Dynamic Spike Superresolution and Applications to Ultrafast Ultrasound Imaging
We consider the dynamical superresolution problem consisting in the recovery of positions and velocities of moving particles from low-frequency static measurements taken over multi...
Multipoint Detection Technique with the Best Clock Signal Closed-Loop Feedback to Prolong FPGA Performance
Multipoint Detection Technique with the Best Clock Signal Closed-Loop Feedback to Prolong FPGA Performance
The degradation effect of a field-programmable gate array becomes a significant issue due to the high density of logic circuits inside the field-programmable gate array. The degrad...
Lifting the bandwidth limit of optical homodyne measurement with broadband parametric amplification
Lifting the bandwidth limit of optical homodyne measurement with broadband parametric amplification
AbstractHomodyne measurement is a corner-stone method of quantum optics that measures the quadratures of light—the quantum optical analog of the canonical position and momentum. St...
Continuously tunable modulation scheme for homodyne detection and state tomography
Continuously tunable modulation scheme for homodyne detection and state tomography
Homodyne detection is a common self-referenced technique to extract optical quadratures. Due to ubiquitous fluctuations, experiments measuring optical quadratures require homodyne ...
Near-Surface Properties of Europa Constrained by the Galileo PPR Measurements
Near-Surface Properties of Europa Constrained by the Galileo PPR Measurements
NASA's Europa Clipper mission will characterize the current and recent surface activity of the icy-moon Europa through a wide range of remote sensing observations. In particular, t...
Potable Water Sources, Household Hygiene, and Sanitation Practices in Ikpoba Okha LGA, Edo State: Implications for Public Health and Sustainable Water Management
Omoregie, Andrew Edosa.1 Omoregie Abieyuwa Peace2 Okoro, Enyinnaya Okoro.3
1 College of Medi
Potable Water Sources, Household Hygiene, and Sanitation Practices in Ikpoba Okha LGA, Edo State: Implications for Public Health and Sustainable Water Management
Omoregie, Andrew Edosa.1 Omoregie Abieyuwa Peace2 Okoro, Enyinnaya Okoro.3
1 College of Medi
BACKGROUND
Access to potable drinking water and sufficient sanitation continues to be an urgent global concern, particularly in developing regions where con...