Date of Publication :18th January 2018
Abstract: Nanofabrication development has made it possible to realize optical Nano-devices capable of handling single photons and leveraging the quantum existence of single photon states. In particular, by transmitting optical pulses each containing no more than one photon, quantum cryptography (or more precisely quantum key distribution, QKD) allows unconditionally secure exchange of cryptographic keys. In addition, consistent regulation of excitonic and photonic qubits is a major step forward with potential applications in quantum computing in the field of solid−state cavity quantum electrodynamics. Here, we identify devices based on high-resolution technologies and their physical properties for realizing single photon generation and detection. Special attentionwill be given to the description of single−quantum dot sources based on optically and electrically driven photonic crystal microcavities: The electrically driven devices are an important result in the realization of a single photon source ' on demand ' A new class of single photon detectors based on superconducting nanowires, the superconducting single photon detectors (SSPDs) are also introduced: Description of the manufacturing techniques and the design proposed for large area coverage and photon number−resolving capability.
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