Results 11 to 20 of about 1,754 (255)

Picosecond laser ranging at 1.5 µm using dispersive interferometry

open access: yesResults in Optics
Precise displacement measurement is essential for engineering, industrial, and scientific purposes. Ultrafast laser techniques are preferred for real-time applications due to their single-shot measurement capability and high resolution.
Behzad Boroomandisorkhabi   +2 more
doaj   +3 more sources

Dispersive qubit measurement by interferometry with parametric amplifiers [PDF]

open access: yesPhysical Review B, 2014
We perform a detailed analysis of how an amplified interferometer can be used to enhance the quality of a dispersive qubit measurement, such as one performed on a superconducting transmon qubit, using homodyne detection on an amplified microwave signal. Our modeling makes a realistic assessment of what is possible in current circuit-QED experiments; in
Barzanjeh, Sh.   +2 more
openaire   +5 more sources

Externally dispersed interferometry for planetary studies [PDF]

open access: yesSPIE Proceedings, 2005
We describe a plan to study the radial velocity of low mass stars and brown dwarfs using a combination of interferometry and multichannel dispersive spectroscopy, Externally Dispersed Interferometry (EDI). The EDI technology allows implementation of precision velocimetry and spectroscopy on existing moderate-resolution echelle or linear grating ...
Erskine, D. J.   +3 more
openaire   +2 more sources

Characterization of digital dispersive spectrometers by low coherence interferometry [PDF]

open access: yesOptics Express, 2017
We propose a procedure to determine the spectral response of digital dispersive spectrometers without previous knowledge of any parameter of the system.The method consists of applying the Fourier transform spectroscopy technique to each pixel of the detection plane, a CCD camera, to obtain its individual spectral response.From this simple procedure ...
Óscar Martínez-Matos   +4 more
openaire   +5 more sources

Optimal Dispersion Condition to Distinguish OPD Directions of Spectrally-Resolved Interferometry [PDF]

open access: yes한국정밀공학회지, 2017
Spectrally resolved interferometry (SRI) is an attractive technique to measure absolute distances without any moving components. In the spectral interferogram obtained by a spectrometer, the optical path difference (OPD) can simply be extracted from the ...
Young Ho Yun, Dae Hee Kim, Ki-Nam Joo
doaj   +1 more source

Investigation of Time-Lapse Changes with DAS Borehole Data at the Brady Geothermal Field Using Deconvolution Interferometry

open access: yesRemote Sensing, 2022
Distributed acoustic sensing (DAS) has great potential for monitoring natural-resource reservoirs and borehole conditions. However, the large volume of data and complicated wavefield add challenges to processing and interpretation.
Hilary Chang, Nori Nakata
doaj   +1 more source

Dispersion and fidelity in quantum interferometry [PDF]

open access: yesPhysical Review A, 2008
We consider Mach-Zehnder and Hong-Ou-Mandel interferometers with nonclassical states of light as input, and study the effect that dispersion inside the interferometer has on the sensitivity of phase measurements. We study in detail a number of different one- and two-photon input states, including Fock, dual Fock, N00N states, and photon pairs from ...
Simon, D. S.   +2 more
openaire   +2 more sources

Spectral Domain Low- Coherence Interferometry for On-line Surface Inspection [PDF]

open access: yes, 2013
We present an on-line surface measurement technique based on spectral domain low-coherence interferometry (SD-LCI), which can obtain a one dimensional surface profile with just one shot.
Gao, F.   +5 more
core   +1 more source

Platicon dynamics in photonic molecules

open access: yesCommunications Physics, 2023
Coherent dissipative structures known as platicons can be reliably generated in photonic molecules, resulting in deterministic and reproducible microcombs derived from a continuous-wave pump. However, the supermode spectrum of standard photonic molecules
Israel Rebolledo-Salgado   +8 more
doaj   +1 more source

Classical dispersion-cancellation interferometry

open access: yesOptics Express, 2007
Even-order dispersion cancellation, an effect previously identified with frequency-entangled photons, is demonstrated experimentally for the first time with a linear, classical interferometer. A combination of a broad bandwidth laser and a high resolution spectrometer was used to measure the intensity correlations between anti-correlated optical ...
Resch, K. J.   +4 more
openaire   +3 more sources

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