Integrated superconducting detectors on semiconductors for quantum optics applications

Kaniber, M.; Flassig, Fabian; Reithmaier, G.; Gross, Rudolf; Finley, Jonathan J.

doi:10.1007/s00340-016-6376-1

Cited by 18 publications

(10 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This made not only the on‐chip measurement of the photoluminescence arising from QDs possible but also allowed for the time resolved analyzation. Despite the exact detector characteristics were not stated in this work, a following work of the same group give a detailed insight in the used detector technology . Here, a maximum device efficiency of around 21% with a dark count rate of 52000 s −1 and a timing jitter of 72 ps was specified which is in good agreement with other works in the GaAs material system.…”

Section: Gaas‐based Photonic Integrated Circuitssupporting

confidence: 74%

Semiconductor Quantum Dots for Integrated Quantum Photonics

et al. 2019

View full text Add to dashboard Cite

Quantum mechanics promises to have a strong impact on many aspects of research and technology, improving classical analogues via purely quantum effects. A large variety of tasks are currently under investigation, for example, the implementation of quantum computing, sensing, metrology, and communication. From a general perspective, in a similar way as classical computing benefited by the reduction of the device footprint, enabling the realization of highly complex chips, a range of quantum applications will sensibly improve thanks to the successful realization of on-chip quantum photonics. Conversely to bulky table-top experiments, it would be very advantageous to transfer all required functionalities on the same quantum photonic chip. The key elements for quantum photonic circuits are on-demand nonclassical light sources, a versatile photonic logic, the ability to store quantum information, and highly efficient detectors, directly integrated on-chip. Among several systems capable of the efficient generation of singleand indistinguishable photons, quantum dots are rapidly establishing as one of the most appealing candidates. This paper reviews the recent progress in the on-chip integration of quantum-dot-based nonclassical light sources as well as in the development of the main building blocks, either integrated monolithically or hybridly on a compact and scalable platform. IntroductionFrom the foundation of quantum mechanics in the early 20th century to explain fundamental physical observations, over the development of transistors and lasers in the 1950s and 1960s, the second quantum revolution is now in full swing. The driving force behind this continuing "quantum footrace" are quantum mechanical effects based on superposition and entanglement that can lead to profound changes. Especially in the field of quantum information science, dramatic improvements are expected in terms of increased computational speed and communication security if compared with classical counterparts.Talking about quantum supremacy, two problems-Grover's algorithm for the efficient search in large unsorted databases and Shor's algorithm for the prime factorization of large integers-are frequently mentioned. [1][2][3] Grover's quantum search algorithm can find an element of a search space M in O( √ M) operations compared to the best known classical algorithms approximately requiring O(M) steps. [4] Shor's algorithm can prime factorize large integers with N bits in polynomial speed compared to the exponential scaling of classical algorithms. Currently, several cryptography schemes in electronic communication systems rely on the difficulty of prime factorization as its security method. Consequently, a quantum computer could break the cryptographic keys quickly by calculating or searching exhaustively all key possibilities, which may allow an eavesdropper to intercept the communication channel. [5] However, quantum key distribution schemes can be alternatively used, which are based on the secure exchange of a cryptographic key between remote...

show abstract

Section: Gaas‐based Photonic Integrated Circuitssupporting

confidence: 74%

Semiconductor Quantum Dots for Integrated Quantum Photonics

et al. 2019

View full text Add to dashboard Cite

show abstract

“…A natural system towards this goal are integrated circuits, where QD SPSs can be homogeneously [25][26][27][28][29] or heterogeneously [30-32] integrated on a single chip. In this approach light can be directly coupled into in-plane waveguides (WGs) and combined with other functionalities on a chip such as phase shifters [33, 34], beam splitters [25, 32, 35], filters [31,36], detectors [29,37] and other devices for light propagation, manipulation and detection on a single photon level.By utilizing this idea near-unity coupling efficiency of a QD emitter to waveguide device was already achieved [26,28,38,39], showing the undeniable potential of this concept. In addition, integrated circuits allow to spatially separate excitation and detection spots, which straightforwardly enables applying resonant driving schemes to slow-down decoherence processes and reduce on-demand emission time-jitter.…”

mentioning

confidence: 99%

Near-Unity Indistinguishability Single Photon Source for Large-Scale Integrated Quantum Optics

et al. 2019

View full text Add to dashboard Cite

Integrated single photon sources are key building blocks for realizing scalable devices for quantum information processing. For such applications highly coherent and indistinguishable single photons on a chip are required. Here we report on a triggered resonance fluorescence single photon source based on In(Ga)As/GaAs quantum dots coupled to single-and multi-mode ridge waveguides. We demonstrate the generation of highly linearly polarized resonance fluorescence photons with 99.1% (96.0%) single-photon purity and 97.5% (95.0%) indistinguishability in case of multi-mode (singlemode) waveguide devices fulfilling the strict requirements imposed by multi-interferometric quantum optics applications. Our integrated triggered single photon source can be readily scaled up, promising a realistic pathway for on-chip linear optical quantum simulation, quantum computation and quantum networks.Large scale implementations of quantum information processing (QIP) schemes are one of the major challenges of modern quantum physics. Building a platform successfully combing many qubits is a very demanding task, however it would provide a system capable to perform quantum simulations, quantum computing and secure quantum communication. In this regard, using single photons as qubits is a particularly appealing concept. Due to the photons low decoherence and the inherent possibility of low-loss transmission, they can be used for both quantum computing and quantum communication applications [1]. Over the last decade, there have been extensive experimental efforts towards realizing large-scale optical QIP systems. A vast majority of these implementations, such as linear optics quantum computing [2], boson sampling [3] or quantum repeater schemes [4] involve a two-photon interference effect, where a complete wavepacket overlap of single photons at the beam splitter is required. This feature demands photons, which are indistinguishable in terms of energy, bandwidth, polarization and arrival time at the beam splitter. Consequently, sources of indistinguishable single photons are one of the central resources for a large scale experimental realization of the optical QIP devices.Among different kinds of emitters quantum dots (QDs) coupled to photonic structures have been shown to be one of the brightest single photon sources (SPS) [5][6][7], which under resonant excitation conditions [7-9] can reach simultaneously indistinguishabilities higher than 95%, single photon purities better than 99% and extraction efficiencies as high as 65-79% [7, 10-13]. Further, by applying advanced semiconductor micro-processing technologies it is possible to fabricate devices where QD electronic properties can be dynamically shaped by strain [14,15] or electric [16,17] fields. The optical quality of such sources allowed already for demonstration of on-demand CNOTgates [18][19][20], heralded entanglement between distant hole spins [21] or the recent realization of 3-,4-and 5photon boson sampling [22,23].It is believed that future steps towards large scale quantum op...

show abstract

“…Such properties open the wide field for applications. [29][30][31][32][33][34] One way for it is the filling of mesoporous photonic crystals void by different substances, including liquids, ferroelectrics, etc. Mesoporous photonic crystals may be explored as selective filters in laser resonators and in devices for registration of spontaneous and stimulated Raman scattering.…”

Section: Resultsmentioning

confidence: 99%

Optical properties of mesoporous photonic crystals, filled with dielectrics, ferroelectrics and piezoelectrics

Горелик

Fei

2017

J. Adv. Dielect.

View full text Add to dashboard Cite

At present, it is very important to create new types of mirrors, nonlinear light frequency transformers and optical filters with controlled optical properties. In this connection, it is of great interest to study photonic crystals. Their dielectric permittivity varies periodically in space with a period permitting Bragg diffraction of light. In this paper, we have investigated the optical properties of mesoporous three-dimensional (3D) opal-type and one-dimensional (1D) anodic alumina photonic crystals, filled with different dielectrics, ferroelectrics and piezoelectrics. We have compared the optical properties of initial mesoporous photonic crystals and filled with different substances. The possibility of mesoporous photonic crystals using selective narrow-band light filters in Raman scattering experiments and nonlinear mirrors has been analyzed. The electromagnetic field enhancing in the case of exciting light frequency close to the stop band edges has been established. The optical harmonics and subharmonics generation in mesoporous crystals, filled with ferroelectrics and piezoelectrics was proposed.

show abstract

Integrated superconducting detectors on semiconductors for quantum optics applications

Cited by 18 publications

References 52 publications

Semiconductor Quantum Dots for Integrated Quantum Photonics

Semiconductor Quantum Dots for Integrated Quantum Photonics

Near-Unity Indistinguishability Single Photon Source for Large-Scale Integrated Quantum Optics

Optical properties of mesoporous photonic crystals, filled with dielectrics, ferroelectrics and piezoelectrics

Contact Info

Product

Resources

About