Spectral transfer function of a periodic multistack including Veselago layers: formal analogy with the Airy function of a Fabry-Perot resonator

2008 ◽  
Author(s):  
Yann G. Boucher
Keyword(s):  
Transfer Function ◽  
Airy Function ◽  
Formal Analogy ◽  
Fabry Perot

Interrogation of low-finesse Fabry-Perot cavities based on modulation of the transfer function of a wavelength division multiplexer

2001 ◽  
Vol 19 (5) ◽  
pp. 673-681 ◽  
Author(s):  
C.J. Misas ◽  
F.M. Moita Araujo ◽  
L.A. Ferreira ◽  
J.L. Santos ◽  
J.M. Lopez-Higuera
Keyword(s):  
Transfer Function ◽  
Wavelength Division Multiplexer ◽  
Wavelength Division ◽  
Fabry Perot

scholarly journals The Angular Airy Function: a model of Fabry-Pérot etalons illuminated by arbitrary beams

2021 ◽  
Author(s):  
Dylan Marques ◽  
James Guggenheim ◽  
Peter Munro
Keyword(s):  
Airy Function ◽  
Fabry Perot

Development and Verification of a Confocal Fabry-Perot Interferometer for Broad Band Ultrasound Detection

2005 ◽  
Vol 295-296 ◽  
pp. 177-182
Author(s):  
Jiunn Haur Shaw ◽  
J.Y. Lee ◽  
L.H. Chow ◽  
Hseuh Ching Shih
Keyword(s):  
Transfer Function ◽  
Resonant Cavity ◽  
Broad Band ◽  
Surface Displacement ◽  
Optical Modulator ◽  
Detection Frequency ◽  
Electro Optical Modulator ◽  
Fabry Perot ◽  
Spherical Mirrors ◽  
Comparative Results

This paper describes the development of a confocal Fabry-Perot interferometer (CFPI) for non-contact and non-destructive detection of broadband ultrasound generated by a pulsed laser. The operation theory of CFPI is introduced. The transmission and reflection modes of operation were investigated theoretically and verified experimentally. For the present study, a CFPI cavity of 50cm with 95.4% reflectivity spherical mirrors was constructed with associated resonant cavity control and signal detection electronics. The design is capable of providing detection frequency bandwidth from 140kHz to 50MHz. For the first step of verification, the input signal simulated by an electro-optical modulator (EOM) was used for verifying the feasibility of surface wave measurement. Signals obtained from an avalanche detector were compared with the results through theoretical analysis of the CFPI transfer function in a transmission mode. The results show a favorable agreement between the two. Furthermore, transmitted ultrasound signals from a 5MHz contact ultrasound transducer were detected and compared between the CFPI system and a Michaelson interferometer. Patterns of ultrasound arrival and reflection were clearly detected by both. Because an intrinsic transfer function is embedded in the operation of CFPI, the output signal will be distorted when measuring surface displacement. A digital filtering process was considered for compensation for the surface displacement signal. From the comparative results, it was further concluded that the present CFPI design has a displacement resolution of 0.05nm. Future studies will be focused on the reflection mode operation for fully utilization of non-contact laser ultrasound generation and detection.

DIRECT FABRY-PÉROT EFFECT REMOVAL

2006 ◽  
Vol 06 (02) ◽  
pp. L227-L239 ◽  
Author(s):  
WITHAWAT WITHAYACHUMNANKUL ◽  
BRADLEY FERGUSON ◽  
TAMATH RAINSFORD ◽  
SAMUEL MICKAN ◽  
DEREK ABBOTT
Keyword(s):  
Parameter Estimation ◽  
Transfer Function ◽  
Frequency Domain ◽  
Prior Knowledge ◽  
Estimation Method ◽  
Sample Thickness ◽  
Material Parameters ◽  
Parameter Estimation Method ◽  
Amplitude Fluctuations ◽  
Fabry Perot

This study indicates that the removal of reflections from T-ray signals can be carried out in the frequency domain without prior knowledge of material parameters or sample thickness. By fitting polynomials to the logarithm and the argument of the sample's transfer function, the Fabry-Pérot reflection term is canceled out, leading to disappearance of the reflections in spatial domain. The method successfully removes the reflections for optically thick samples under the condition of noise or amplitude fluctuations. The application to optically thin samples is possible when the samples are subjected to broadband terahertz measurements. The Fabry-Pérot free signal, when used as input to the parameter estimation method, results in correct material parameters with low variance.

Transfer function of analog fiber-optic systems driven by Fabry-Perot lasers

2005 ◽  
Vol 22 (10) ◽  
pp. 2099 ◽  
Author(s):  
José Capmany ◽  
Alfonso Martínez ◽  
Beatriz Ortega ◽  
Daniel Pastor
Keyword(s):  
Transfer Function ◽  
Fiber Optic ◽  
Fabry Perot ◽  
Optic Systems

AN AIRY FUNCTION FOR THE LASER

1996 ◽  
Vol 05 (03) ◽  
pp. 551-557 ◽  
Author(s):  
GUY STÉPHAN
Keyword(s):  
Line Shape ◽  
Source Term ◽  
Airy Function ◽  
Single Mode ◽  
Quantum Limit ◽  
Control Parameters ◽  
Mode Laser ◽  
Single Mode Laser ◽  
Fabry Perot ◽  
Usual Quantum

We give a general equation which allows the description of the evolution of the laser properties when the gain is varied from below to above threshold. The method is general in the context of the semi-classical theory of lasers. It is numerically illustrated in the simplest case of a single mode laser with a source term characterized by a very narrow spectrum. The transformation of the Airy line shape of the passive Fabry-Perot cavity into the laser line shape is described. A classical linewidth which complements the usual quantum limit can thus be introduced, together with its control parameters.

Radiation Damage of Support Films

1981 ◽  
Vol 39 ◽  
pp. 28-29
Author(s):  
H.A. Cohen ◽  
W. Chiu
Keyword(s):  
Transfer Function ◽  
Low Temperatures ◽  
Carbon Support ◽  
Contrast Transfer Function ◽  
Electron Dose ◽  
Imaging Parameters ◽  
Negative Stain ◽  
Phase Corrections ◽  
Two Parameters ◽  
Medium Dose

The goal of imaging the finest detail possible in biological specimens leads to contradictory requirements for the choice of an electron dose. The dose should be as low as possible to minimize object damage, yet as high as possible to optimize image statistics. For specimens that are protected by low temperatures or for which the low resolution associated with negative stain is acceptable, the first condition may be partially relaxed, allowing the use of (for example) 6 to 10 e/Å2. However, this medium dose is marginal for obtaining the contrast transfer function (CTF) of the microscope, which is necessary to allow phase corrections to the image. We have explored two parameters that affect the CTF under medium dose conditions.Figure 1 displays the CTF for carbon (C, row 1) and triafol plus carbon (T+C, row 2). For any column, the images to which the CTF correspond were from a carbon covered hole (C) and the adjacent triafol plus carbon support film (T+C), both recorded on the same micrograph; therefore the imaging parameters of defocus, illumination angle, and electron statistics were identical.

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