Results 101 to 110 of about 70,192 (249)

Possibility of Measuring the Width of Narrow Fe II Astrophysical Laser Lines in the Vicinity of Eta Carinae by means of Brown-Twiss-Townes Heterodyne Correlation Interferometry

, 2005
We consider the possibility of measuring the true width of the narrow Fe II optical lines observed in spectra of the Weigelt blobs in the vicinity of Eta Carinae.
Abbas, Casperson, Elitzur, Hanbury Brown, Hanbury Brown, Johansson, Johansson, Johnson, Lavrinovich, Letokhov, Letokhov, Letokhov, Litvak, Prochazka, Rothermel, S. Johansson, Saha, Siegman, Siegman, V.S. Letokhov, Weigelt   +20 more
core   +2 more sources

Research progress on the use of the optical coherence tomography system for the diagnosis and treatment of central nervous system tumors

Ibrain, Volume 11, Issue 1, Page 3-18, Spring 2025.
With the advantages of high‐resolution imaging, efficient image acquisition, intraoperative real‐time detection, and radiation‐free and noninvasive characteristics, optical coherence tomography (OCT) provides accurate diagnosis and effective intraoperative guidance for the minimally invasive diagnosis and treatment of central nervous system (CNS ...
Jiuhong Li, Ziba Ayi, Gonggong Lu, Haibo Rao, Feilong Yang, Jing Li, Jiachen Sun, Junlin Lu, Xulin Hu, Si Zhang, Xuhui Hui   +10 more
wiley   +1 more source

An Acousto-Optical Sensor with High Angular Resolution

Sensors, 2012
The paper introduces a new laser interferometry-based sensor for diagnosis of random media by means of high accuracy angle measurements and describes the results of its development and testing.
Igor Lukin, Gennady Kaloshin
doaj   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Investigation of continental drift, phase 1 effort Progress report, 1 Apr. - 30 Sep. 1968 [PDF]

Feasibility of using ultrashort pulse laser ranging and independent clock radio interferometry distance measurement methods to test for existence of continental ...
Lehr, C. G., Marvin, U. B., Mohr, P. A.
core   +1 more source

Colloquium: Quantum interference of clusters and molecules

, 2012
We review recent progress and future prospects of matter wave interferometry with complex organic molecules and inorganic clusters. Three variants of a near-field interference effect, based on diffraction by material nanostructures, at optical phase ...
Berman, P., Berman, P. R., Berry, M., Bohr, N., Born, M., Clauser, J., De Heer, W. A., Dubetsky, B., Feynman, R., Joos, E., Klaus Hornberger, Markus Arndt, Patorski, K., Philipp Haslinger, Rauch, H., Schleich, W. P., Schlosshauer, M., Schmiedmayer, J., Scoles, G., Stefan Gerlich, Stefan Nimmrichter, Stibor, A., Talbot, H. F.   +22 more
core   +1 more source

Faraday–Ramsey Rotation in Ultrathin Alkali Vapor Cells as an Analogy to Atomic‐Beam Systems

Laser &Photonics Reviews, EarlyView.
This work demonstrates that ultrathin rubidium vapor cells can emulate atomic‐beam behavior through geometry‐dependent velocity filtering. Employing a spatially separated pump–probe scheme and Faraday–Ramsey rotation, the study reveals coherent atomic dynamics without buffer gas or anti‐relaxation coatings. This approach offers a compact pathway toward
Mark Dikopoltsev, Eliran Talker, Yefim Barash, Noa Mazurski, Uriel Levy   +4 more
wiley   +1 more source

3D Surface Profiling via Direct End‐to‐End Regression With a Photonic Geometric Sensor

Laser &Photonics Reviews, EarlyView.
Measurements of microscale surface patterns are essential for quality control across semiconductor and biomedical industries, yet the development of miniaturized, intelligent systems remains constrained by the complexity and bulkiness of conventional benchtop metrology.
Ziyao Zhang, Yizhi Wang, Chunhui Yao, Huiyu Huang, Rui Ma, Xin Du, Wanlu Zhang, Zhitian Shi, Minjia Chen, Ting Yan, Liang Ming, Yuxiao Ye, Richard Penty, Qixiang Cheng   +13 more
wiley   +1 more source

Numerical simulation of time delay interferometry for eLISA/NGO

, 2013
eLISA/NGO is a new gravitational wave detection proposal with arm length of 10^6 km and one interferometer down-scaled from LISA. Just like LISA and ASTROD-GW, in order to attain the requisite sensitivity for eLISA/NGO, laser frequency noise must be ...
Arun K G, Brumberg V A, Chiou D-W Ni W-T, Demorest P, Dhurandhar S V, Dhurandhar S V, Folkner W M, Gang Wang, Hughes S P, Jennrich O, Kawamura S, Kawamura S, Kuroda K, Li G, LISA Study Team, McMahon J, Men J-R, Ni W-T, Ni W-T, Ni W-T, Phinney S, Planck Surveyor, Soffel M, Tang C-J, Tang C-J Ni W-T, The Advanced LIGO Team, The Advanced Virgo Team, Tinto M, Vincent M A Bender P L, Wang G, Wang G, Wang G, Wei-Tou Ni   +32 more
core   +1 more source

Gravitational radiation detection with laser interferometry [PDF]

Reviews of Modern Physics, 2014
Gravitational-wave detection has been pursued relentlessly for over 40 years. With the imminent operation of a new generation of laser interferometers, it is expected that detections will become a common occurrence. The research into more ambitious detectors promises to allow the field to move beyond detection and into the realm of precision science ...
openaire   +3 more sources