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Measuring the spectral phase of a pulse is key for performing wavelength resolved ultrafast measurements in the few femtosecond regime. However, accurate measurements in real experimental conditions can be challenging. We show that the…

We present experiments to systematically study the time constants of spin-dependent recombination processes in semiconductors using pulsed electrically detected magnetic resonance (EDMR). The combination of time-programmed optical…

Vacuum fluctuations of the electromagnetic field set a fundamental limit to the sensitivity of a variety of measurements, including magnetic resonance spectroscopy. We report the use of squeezed microwave fields, which are engineered…

Mesoscale and Nanoscale Physics · Physics 2017-10-30 A. Bienfait , P. Campagne-Ibarcq , A. Holm-Kiilerich , X. Zhou , S. Probst , J. J. Pla , T. Schenkel , D. Vion , D. Esteve , J. J. L. Morton , K. Moelmer , P. Bertet

We establish a testbed system for the development of high-sensitivity Electron Spin Resonance (ESR) techniques for small samples at cryogenic temperatures. Our system consists of a Niobium Nitride thin-film planar superconducting…

Presented are magnetization measurements on a crystal of Fe8 single-molecule magnets using a Hall probe magnetometer. Irradiation with microwaves at frequencies of 92 and 110-120 GHz leads to the observation of electron paramagnetic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 K. Petukhov , W. Wernsdorfer , A. -L. Barra

We demonstrate optically detected spin resonance of a single electron confined to a self-assembled quantum dot. The dot is rendered dark by resonant optical pumping of the spin with a coherent laser. Contrast is restored by applying a radio…

Quantum sensors using solid-state spin defects excel in the detection of radiofrequency (RF) fields, serving various purposes in communication, ranging, and sensing. For this purpose, pulsed dynamical decoupling (PDD) protocols are…

We implement superconducting YBCO planar resonators with two fundamental modes for circuit quantum electrodynamics experiments. We first demonstrate good tunability in the resonant microwave frequencies and in their interplay as it emerges…

Mesoscale and Nanoscale Physics · Physics 2018-12-04 Claudio Bonizzoni , Filippo Troiani , Alberto Ghirri , Marco Affronte

The interaction-free measurement is a fundamental quantum effect whereby the presence of a photosensitive object is determined without irreversible photon absorption. Here we propose the concept of coherent interaction-free detection and…

Quantum Physics · Physics 2023-07-10 Shruti Dogra , John J. McCord , Gheorghe Sorin Paraoanu

Measuring spins is the corner stone of a variety of analytical techniques including modern magnetic resonance imaging (MRI). The full potential of spin imaging and sensing across length scales is hindered by the achievable signal-to-noise…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 S. Steinert , F. Ziem , L. Hall , A. Zappe , M. Schweikert , A. Aird , G. Balasubramanian , L. Hollenberg , J. Wrachtrup

Spin waves - the elementary excitations of magnetic materials - are prime candidate signal carriers for low dissipation information processing. Being able to image coherent spin-wave transport is crucial for developing interference-based…

A minimally invasive technique is proposed for detecting the differential spin conductance and spin current noise across a junction between two quantum magnets using a high-quality microwave resonator coupled to a transmission line which is…

Mesoscale and Nanoscale Physics · Physics 2019-05-27 Joshua Aftergood , Mircea Trif , So Takei

Pulsed electrically-detected magnetic resonance of phosphorous (31P) in bulk crystalline silicon at very high magnetic fields (B > 8.5 T) and low temperatures (T = 2.8 K) is presented. We find that the spin-dependent capture and reemission…

Quantum Physics · Physics 2009-09-25 G. W. Morley , D. R. McCamey , H. A. Seipel , L. -C. Brunel , J. van Tol , C. Boehme

The purpose of this article is to review the current status of a frontier in dynamic spintronics and contemporary magnetism, in which much progress has been made in the past decade, based on the creation of a variety of micro- and…

Materials Science · Physics 2016-11-17 Michael Harder , Yongsheng Gui , Can-Ming Hu

When strongly pumped at twice their resonant frequency, non-linear resonators develop a high-amplitude intracavity field, a phenomenon known as parametric self-oscillations. The boundary over which this instability occurs can be extremely…

When an electromagnetic (EM) wave is propagating in a medium whose properties are varied abruptly in time, the wave experiences refractions and reflections known as "time-refractions" and "time-reflections", both manifesting spectral…

Applied Physics · Physics 2023-10-05 Thomas R. Jones , Alexander V. Kildishev , Mordechai Segev , Dimitrios Peroulis

Electrical detection of spins is an essential tool in understanding the dynamics of spins in semiconductor devices, providing valuable insights for applications ranging from optoelectronics and spintronics to quantum information processing.…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 C. C. Lo , M. Urdampilleta , P. Ross , M. F. Gonzalez-Zalba , J. Mansir , S. A. Lyon , M. L. W. Thewalt , J. J. L. Morton

We present a broadband microwave setup for electrically detected magnetic resonance (EDMR) based on microwave antennae with the ability to apply arbitrarily shaped pulses for the excitation of electron spin resonance (ESR) and nuclear…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 F. M. Hrubesch , G. Braunbeck , A. Voss , M. Stutzmann , M. S. Brandt

Electrically detected magnetic resonance is used to identify recombination centers in a set of Czochralski grown silicon samples processed to contain strained oxide precipitates with a wide range of densities (~ 1e9 cm-3 to ~ 7e10 cm-3).…

Materials Science · Physics 2012-01-11 V. Lang , J. D. Murphy , R. J. Falster , J. J. L. Morton

Electron spins confined in quantum dots are an attractive system to realize high-fidelity qubits owing to their long coherence time. With the prolonged spin coherence time, however, the control fidelity can be limited by systematic errors…

Mesoscale and Nanoscale Physics · Physics 2018-10-30 K. Takeda , J. Yoneda , T. Otsuka , T. Nakajima , M. R. Delbecq , G. Allison , Y. Hoshi , N. Usami , K. M. Itoh , S. Oda , T. Kodera , S. Tarucha