# Modelling photo-detectors in quantum optics

@article{Rohde2006ModellingPI, title={Modelling photo-detectors in quantum optics}, author={P. Rohde and Timothy C. Ralph}, journal={Journal of Modern Optics}, year={2006}, volume={53}, pages={1589 - 1603} }

Photo-detection plays a fundamental role in experimental quantum optics and is of particular importance in the emerging field of linear optics quantum computing. Present theoretical treatment of photo-detectors is highly idealized and fails to consider many important physical effects. We present a physically motivated model for photo-detectors which accommodates for the effects of finite resolution, bandwidth and efficiency, as well as dark counts and dead-time. We apply our model to two simple…

## 38 Citations

### Theoretical comparison of quantum and classical illumination for simple detection-based LIDAR

- PhysicsOptical Engineering + Applications
- 2021

Use of non-classical light in a quantum illumination scheme provides an advantage over classical illumination when used for LIDAR with a simple and realistic detection scheme based on Geiger-mode…

### Photonic Astronomy and Quantum Optics

- Physics
- 2007

Quantum optics potentially offers an information channel from the Universe beyond the established ones of imaging and spectroscopy. All existing cameras and all spectrometers measure aspects of the…

### Time-resolved detection and mode mismatch in a linear optics quantum gate

- Physics
- 2011

Linear optics (LO) is a promising candidate for the implementation of quantum information processing protocols. In such systems, single photons are used to represent qubits. In practice, single…

### Photon number projection using non-number-resolving detectors

- Physics
- 2007

Number-resolving photo-detection is necessary for many quantum optics experiments, especially in the application of entangled state preparation. Several schemes have been proposed for approximating…

### Gaussian state-based quantum illumination with simple photodetection.

- PhysicsOptics express
- 2021

The continuous-variable Gaussian quantum information formalism is used to show that quantum illumination is better for object detection compared with coherent states of the same mean photon number, even for simple direct photodetection.

### Gaussian state-based quantum illumination with simple photodetection

- Physics
- 2021

: Proofs of the quantum advantage available in imaging or detecting objects under quantum illumination can rely on optimal measurements without specifying what they are. We use the…

### Engineering quantum jump superoperators for single-photon detectors

- Physics
- 2006

We study the back action of a single-photon detector on the electromagnetic field upon a photodetection by considering a microscopic model in which the detector is constituted of a sensor and an…

### Optical quantum computing with photons of arbitrarily low fidelity and purity

- Physics, Computer Science
- 2012

It is presented evidence that by increasing the size of the system the authors can implement a computationally hard algorithm even if their photons have arbitrarily low fidelity and purity, and make Boson-sampling LOQC within reach of present-day technology.

### Experimental demonstration of full-field quantum optical coherence tomography

- Physics
- 2019

We present, to the best of our knowledge, the first implementation of full-field quantum optical coherence tomography (FF-QOCT). In our system, we are able to obtain full three-dimensional (3D)…

### Accurate and precise characterization of linear optical interferometers

- Physics
- 2015

We combine single- and two-photon interference procedures for characterizing any multi-port linear optical interferometer accurately and precisely. Accuracy is achieved by estimating and correcting…

## References

SHOWING 1-10 OF 30 REFERENCES

### Photon counting schemes and performance of non-deterministic nonlinear gates in linear optics

- PhysicsSPIE Optics + Photonics
- 2002

The performance of nondeterministic nonlinear gates in linear optics relies on the photon counting scheme being employed and the efficiencies of the detectors in such schemes. We assess the…

### Fiber-assisted detection with photon number resolution.

- PhysicsOptics letters
- 2003

The development of a photon-number-resolving detector based on a fiber-optical setup and a pair of standard avalanche photodiodes is reported, showing that there is a high probability of inferring the input photon number from a measurement of the number of detection events on a single run.

### Development of a high-quantum-efficiency single-photon counting system

- Physics
- 1999

A high-quantum-efficiency single-photon counting system has been developed. In this system, single photons were detected by a visible light photon counter operated at 6.9 K. The visible light photon…

### A scheme for efficient quantum computation with linear optics

- PhysicsNature
- 2001

It is shown that efficient quantum computation is possible using only beam splitters, phase shifters, single photon sources and photo-detectors and are robust against errors from photon loss and detector inefficiency.

### Managing photons for quantum information processing

- PhysicsPhilosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
- 2003

A novel method for characterizing the mode structure of single photons, and demonstrating it in the context of coherent light, is described and demonstrated.

### Multiphoton detection using visible light photon counter

- Physics
- 1999

Visible light photon counters feature noise-free avalanche multiplication and narrow pulse height distribution for single photon detection events. Such a well-defined pulse height distribution for a…

### Quantum trajectories for realistic photodetection: II. Application and analysis.

- Physics
- 2003

In the preceding paper (Warszawski P and Wiseman H M 2002 J. Opt. B: Quantum Semiclass. Opt. 4 1) we presented a general formalism for determining the state of a quantum system conditional on the…

### Photon chopping: New way to measure the quantum state of light.

- PhysicsPhysical review letters
- 1996

The use of a balanced $2N-port as a technique to measure the pure quantum state of a single-mode light field and the photon statistics can be measured with currently available devices.

### Quantum trajectories for realistic photodetection: I. General formalism

- Physics
- 2002

The essential idea is to treat the quantum system and classical detector jointly, and to average over the latter to obtain the conditional quantum state, and the approach could be applied in many areas of physics.

### Towards photostatistics from photon-number discriminating detectors

- Physics
- 2003

Abstract We study the properties of a photodetector that has a numberresolving capability. In the absence of dark counts, due to its finite quantum efficiency, photodetection with such a detector can…