Spectral Phasor Analysis for Brillouin Microspectroscopy
نویسندگان
چکیده
منابع مشابه
Analysis of Rayleigh-Brillouin spectral profiles and Brillouin shifts in nitrogen gas and air.
On the basis of experimental Rayleigh-Brillouin scattering data in gaseous nitrogen and air, simulations are performed to describe the observed frequency profiles in analytical form. The experimental data pertain to a λ = 366 nm scattering wavelength, a 90° scattering angle, pressures of 1 and 3 bar, and temperatures in the range 250 - 340 K. Two different models are used to represent the RB-pr...
متن کاملPhasor analysis for nonlinear pump-probe microscopy
Pump-probe microscopy provides molecular information by probing transient, excited state dynamic properties of pigmented samples. Analysis of the transient response is typically conducted using principal component analysis or multi-exponential fitting, however these methods are not always practical or feasible. Here, we show an adaptation of phasor analysis to provide an intuitive, robust, and ...
متن کاملQualitative Phasor Analysis
Most of the work on behavior prediction on the field of Qualitative Physics has focused on transient behavior and responses to perturbations (de Kleer Brown 1984; Forbus 1984; Kuipers 1985; Williams 1984); very little has been done about behavior of systems in steady state (Sussman & Steele 1980). understanding of the sinusoidal steady state of electrical circuits is important for several reaso...
متن کاملEnhancement of spectral resolution and optical rejection ratio of Brillouin optical spectral analysis using polarization pulling.
High-resolution, wide-bandwidth optical spectrum analysis is essential to the measuring and monitoring of advanced optical, millimeter-wave, and terahertz communication systems, sensing applications and device characterization. One category of high-resolution spectrum analyzers reconstructs the power spectral density of a signal under test by scanning a Brillouin gain line across its spectral e...
متن کاملSpectral narrowing in coherent Rayleigh-Brillouin scattering.
Coherent Rayleigh-Brillouin scattering is a four-wave mixing technique that provides information on various physical properties of the scattering medium in the spectral domain. Being based on density gratings generated by dipole forces, the method requires two pump beams of sufficient spectral width to span the full response bandwidth of the scattering medium. We provide experimental data on th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Physics
سال: 2019
ISSN: 2296-424X
DOI: 10.3389/fphy.2019.00062