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Temperature sensing with nitrogen vacancy (NV) centers using quantum techniques is very promising and further development is expected. Recently, the optically detected magnetic resonance (ODMR) spectrum of a high-density ensemble of the NV…

In the present paper we study magneto-intersubband oscillations (MISO) in HgTe/Hg$_{1-x}$Cd$_x$Te single quantum well with "inverted" and "normal" spectra and in conventional In$_{1-x}$Ga$_x$As/In$_{1-y}$Al$_y$As quantum wells with normal…

The core issue for the implementation of the diamond NV centre qubits technology is the sensitive readout of NV spin state. We have recently demonstrated the photoelectric detection of NV magnetic resonances (PDMR), anticipated to be faster…

Mesoscale and Nanoscale Physics · Physics 2017-01-25 E. Bourgeois , E. Londero , K. Buczak , Y. Balasubramaniam , G. Wachter , J. Stursa , K. Dobes , F. Aumayr , M. Trupke , A. Gali , M. Nesladek

Magnetic Field Imaging (MFI) is the newest Fault Isolation/Failure analysis technique to non-destructively and non-invasively localize defects such as electrical shorts and opens in both the die and package levels of Flip-Chips. This is…

Applied Physics · Physics 2023-06-21 David Noel

Photoelectrical detection of magnetic resonance (PDMR) offers a scalable alternative to optical readout of spin defects in semiconductors and is particularly promising for near-infrared (NIR) emitters, where photodetection is often…

Quantum Physics · Physics 2026-04-02 Naoya Morioka , Tetsuri Nishikawa , Hiroshi Abe , Takeshi Ohshima , Norikazu Mizuochi

DC-electric field, being screened in 3D semiconductors, normally decays monotonically in space. Experimental studies of the DC electric field screening in Si-SiO$_2$ multiple quantum wells by electric field induced optical second-harmonic…

Condensed Matter · Physics 2007-05-23 V. V. Savkin , A. A. Fedyanin , A. N. Rubtsov , F. A. Pudonin , O. A. Aktsipetrov

This paper aims to evaluate mid-infrared (MIR) Optical Coherence Tomography (OCT) systems as a tool to penetrate different materials and detect sub-surface irregularities. This is useful for monitoring production processes, allowing…

Microresonators (MRs) are key components in integrated optics. As a result, the estimation of their energy storage capacity as measured by the quality factor (Q) is crucial. However, in MR with high/ultra-high Q, the surface-wall roughness…

Optics · Physics 2022-07-19 Stefano Biasi , Riccardo Franchi , Lorenzo Pavesi

Quantum sensors based on the nitrogen-vacancy (NV) centre in diamond are rapidly advancing from scientific exploration towards the first generation of commercial applications. While significant progress has been made in developing suitable…

We report a new method to determine the orientation of individual nitrogen-vacancy (NV) centers in a bulk diamond and use them to realize a calibration-free vector magnetometer with nanoscale resolution. Optical vortex beam is used for…

Quantum Physics · Physics 2021-02-05 Bing Chen , Xianfei Hou , Feifei Ge , Xiaohan Zhang , Yunlan Ji , Hongju Li , Peng Qian , Ya Wang , Nanyang Xu , Jiangfeng Du

Magnetometers based on quantum mechanical processes enable high sensitivity and long-term stability without the need for re-calibration, but their integration into fieldable devices remains challenging. This paper presents a CMOS quantum…

Applied Physics · Physics 2020-07-23 Mohamed I. Ibrahim , Christopher Foy , Dirk R. Englund , Ruonan Han

Transport experiments on the two-dimensional electron gas (2DEG) confined into a semiconductor quantum well and subjected to a quantizing magnetic field have uncovered a rich variety of uniform and nonuniform phases such as the Laughlin…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 R. Côté , Alexandre M. Simoneau

Optomechanical coupling between the motion of a mechanical oscillator and a cavity represents a new arena for experimental investigation of quantum effects on the mesoscopic and macroscopic scale.The motional sidebands of the output of a…

Quantum Physics · Physics 2017-10-26 E. B. Aranas , P. G. Z. Fonseca , P. F. Barker , T. S. Monteiro

The development of new approaches to tuning the resonant magnetic response of simple all-dielectric nanostructures is very important in modern nanophotonics. Here we show that a resonant magnetic octupole (MOCT) response can be obtained by…

We have developed a technique for precise measurement of small magnetic fields using nonlinear magneto-optic rotation (NMOR). The technique relies on the resonant laser beam being chopped. During the on time, the atoms are optically pumped…

Optics · Physics 2012-03-23 Harish Ravishankar , Sapam Ranjita Chanu , Vasant Natarajan

Multi-element cavity optomechanics constitutes a direction to observe novel effects with mechanical resonators. Several exciting ideas include superradiance, increased optomechanical coupling, and quantum effects between distinct mechanical…

Quantum sensing with nitrogen-vacancy centers in diamond has emerged as a powerful tool for measuring diverse physical parameters, yet the versatility of these measurement approaches is often limited by the achievable layout and…

Optical fibers are widely used in bioimaging systems as flexible endoscopes capable of low-invasive penetration inside hollow tissue cavities. Here, we report on the technique which allows magnetic resonance imaging (MRI) of hollow-core…

Unknown-view tomography (UVT) reconstructs a 3D density map from its 2D projections at unknown, random orientations. A line of work starting with Kam (1980) employs the method of moments (MoM) with rotation-invariant Fourier features to…

Optimization and Control · Mathematics 2023-06-13 Shuai Huang , Mona Zehni , Ivan Dokmanić , Zhizhen Zhao

In dynamically varying optical wireless communication (OWC) links, conventional quadrature amplitude modulation (QAM) in optical orthogonal frequency-division multiplexing (OFDM) requires frequent channel estimation and equalization,…

Optics · Physics 2026-03-19 Tian Cao , Ping Wang , Tianfeng Wu , Kaile Wang , Jian Song