Essays about: "Rare-Earth Ion"
Showing result 1 - 5 of 20 essays containing the words Rare-Earth Ion.
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1. Photoluminescence Mapping of Erbium Doped Lithium Niobate
University essay from KTH/Tillämpad fysikAbstract : Lithium niobate (LiNbO3) is a human-made crystalline which is widely used in modern photonics due to its useful properties. In recent years, there has been significant progress in the development of lithium niobate on insulator (LNOI) technology, realizing a fully functional photonic integrated circuits, thanks to its capabilities in both electro-optics and second-order optical nonlinearity. READ MORE
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2. Correlating Photoconductivity with Photochromism in Oxygen-containing Rare-earth Metal Hydride Thin Films
University essay from Uppsala universitet/MaterialfysikAbstract : Scientists have recently discovered simultaneous photoconductivity and photochromism (i.e., optical switching upon light exposure) of oxygen-containing rare-earth metal hydrides (REMHO). A deep understanding of these extraordinary optical and electrical properties can open the door to advanced technological uses such as smart windows. READ MORE
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3. Active stabilisation of a micro-sized fibre cavity using tilt locking to enable quantum operations on single ions
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : In this thesis, the tilt locking scheme is applied to create an error signal that monitors length changes in a fibre-based microcavity. To find a robust and precise locking technique is an essential step towards quantum operations on single rare-earth ions doped in microcrystals. Quantum computing and information is a frontier of modern physics. READ MORE
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4. A study of the photochromic effect in oxygen containing rare-earth metal hydride thin films and multilayer structures
University essay from Uppsala universitet/Tillämpad kärnfysikAbstract : In this work, we have studied the photochromic response of several oxygen containing rare-earth hydride thin films (REHO, RE = Y, Nd, Gd, and Dy). Their chemical composition was characterized by an iterative multi-method approach based on ion beams, while the photochromic effect was measured by means of optical spectrometry. READ MORE
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5. A Fabry–Pérot Cavity for Rare-Earth-Ion-Doped Nanocrystals
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : This thesis work contributes to the effort of detecting single rare earth ions doped into crystals, an operation crucial for the development of rare earth quantum computer hardware. Doping crystals with rare earth elements, their trivalent ions substitute some of the crystal’s original bonds. READ MORE