An International Peer Reviewed Research Journal

AJP

SSN : 0971 - 3093

Vol 28, No 5, May, 2019

Asian Journal of Physics
(A Publication Not for Profit)
Volume 28, No 5 (2019)


CONTENTS


Editorial


Guest Editorial


About the Guest Editors


On the algorithms in phase-shift interferometry
Rajpal Sirohi                                                                                                                                                                                                                             275


What is “Wrong” with Current Theoretical Physicists?
Francis T S Yu                                                                                                                                                                                                                           285


Shades and Reflections of Light
Rajpal Sirohi                                                                                                                                                                                                                             309


Determination of third-order nonlinear optical response of uracil derivatives using Z-scan technique
Elizabeth, I Hubert Joe, M A Palafox and V K Rastogi                                                                                                                                                            319


Vibrational spectral study and molecular docking analysis of anticancerous drug:5-Fluorouracil: A Review
S P Singh, Prem Kumar, A Milton Franklin Benial, M A Palafox, Kaushal Rani Nagar and V K Rastogi                                                                              329


Asian Journal of Physics                                                                                                           Vol. 28 No 5, 2019, 275-283


On the algorithms in phase-shift interferometry


Rajpal Sirohi

Physics Department

Alabama A&M University, Huntsville AL 35802, USA

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A number of phase-shift algorithms exist in literature. These are categorized as 3-step, 4-step, 5-step etc. with different but constant values of phase steps. In this paper, it is shown that many of them can be deduced from the generalized theory under each category in literature. © Anita Publications. All rights reserved.

Keywords: Algorithms, Interferometry, Interferogram, Aberrated wavefront

References

  1.   Malacara Daniel (ed), Optical Shop Testing, 3rd Edn, (Wiley & Sons, Inc., New York), 2007.

  2.   Sirohi Rajpal S (ed), Speckle Metrology, (Marcel Dekker, Inc., New York),1993.

  3.   Schreiber Horst, Bruning John H, Phase Shifting Interferometry, in Optical Shop Testing, Malacara Daniel (ed), (Wiley & Sons, Inc., New York), 2007,pp

        547-666.

  4.   Creath K, Phase-Measurement Interferometry Techniques, in: Progress in Optics Vol XXVI, E. Wolf Ed, Elsevier Science Publishers, Amsterdam), 1988, pp

         349-393

  5.   Greivenkamp J E, Generalized Data Reduction for Heterodyne Interferometry, Opt Eng, 23(1984)350-352.

  6.   Wyant J C, Koliopoulos C L, Bhushan B, George O E, An Optical Profilometer for Surface Characterization of Magnetic Media, ASLE Trans,

        27(1984)101-113.

  7.   Wizinowich P L, Phase shifting interferometry in the presence of vibration: a new algorithm and system, Appl Opt, 29(1900)3211-3279.

  8.   Carre ́ P, Installation et utilisation du comparateur photoélectrique et Interférentiel du Bureau International des Poids et Measures, Metrologia, 2(1966)13-23.

  9.   Hariharan P, Oreb B F, Eiju T, Digital Phase-Shifting Interferometry: A Simple Error-Compensating Phase Calculation Algorithm, Appl Opt,

        26(1987)2504-2504.

10.   Larkin K G, Oreb B F, Design, Assessment of Symmetrical Phase-Shifting Algorithms, J Opt Soc Am A, 9(1992) 1740-1748.

11.   Surrel Y, Design of Algorithms for Phase Measurements by the Use of Phase Stepping, Appl Opt, 35(1996)51-60.

12.   Hibino K, Oreb B F, Farrant D I, Larkin K G, Phase Shifting for Nonsinusoidal Waveforms With Phase-Shift Errors, J Opt Soc Am A, 12(1995)761-768.

On the algorithms in phase-shift interferometry.pdf
Rajpal Sirohi

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Asian Journal of Physics                                                                                                           Vol. 28 No 5, 2019, 285-307

 

What is “Wrong” with Current Theoretical Physicists?

Francis T S Yu
Emeritus Evan Pugh (University) Professor of Electrical Engineering
Penn State University, University Park, PA 16802, USA
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Theoretical physics uses amazing mathematical paradigm and added with fantastic computer animation provides very convincing results. But mathematical modeling and computer animation are virtual and fictitious, for which many of analytical solutions are not physically real. What is wrong with current theoretical physicists is that they have used mostly a timeless (t = 0) mathematical subspace for their analyses that is not existed within our temporal (t > 0) universe. The reason is: It is not how rigorous and fancies the mathematics (or computer simulation) are; it is the essence of a physical realizable paradigm. For instance; timeless (t = 0) model has been used since the beginning of science; although it has produced uncountable excellent results but, it has also produced many solutions that are timeless (t = 0) or non-existent solutions within our temporal (t > 0) universe. In this article, I will give a few evidences where  the theoretical analyses done by the world renowned theoretical scientists; past and present, have done something wrong to physics. Yet, theoretical physicists were and still are the creators for all the fundamental laws and principles of physics, it is their “responsibility” to take us back to the physically realizable world of science; otherwise we will be still trapped within a virtual timeless (t = 0) land of mathematics. © Anita Publications. All rights reserved.
Keywords: Theoretical Physics, Temporal Space, Timeless Space, Virtual Space, Newtonian Space, Physical Realizable, Quantum Mechanics, Cosmology, Relativity.

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