Miftachul Hadi

Followers

Following

Public Views

Justin Clarke-Doane

Columbia University

Prof. Dr. Raffaele Pisano, MSc, HDR (Habil.)

Université des Sciences et Technologies de Lille (Lille-1)

Cenap Ozel

King Abdulaziz University

Ion Vancea

Universidade Federal Rural do Rio de Janeiro

Patrick Dasgupta

University of Delhi

Nikos Mantzakouras

National & Kapodistrian University of Athens

Thomas Curtright

University of Miami

Lyudmila S Mihaylova

The University of Sheffield

Alexander Lazarides

University of Toronto

Christopher Jeynes

University of Surrey

Interests

Uploads

Papers by Miftachul Hadi

Hidden nonlinearity in Newton's second law of gravitation

We propose that Newton's second law of gravitation, a linear equation, could have hidden nonl... more

Download

$Research paper thumbnail of On phase and refractive index transformations$

On phase and refractive index transformations

We treat the geometrical optics as the phase (gauge) theory. We found that the phase can be relat... more

Download

$Research paper thumbnail of On the non-linear refractive index-curvature relation$

On the non-linear refractive index-curvature relation

The refractive index-curvature relation is formulated using the second rank tensor of Ricci curva... more The refractive index-curvature relation is formulated using the second rank tensor of Ricci curvature as a consequence of a scalar refractive index. A scalar refractive index describes (an isotropic) linear optics. In (an isotropic) non-linear optics, this scalar refractive index is decomposed into a contravariant fourth rank tensor of non-linear refractive index and a covariant fourth rank tensor of susceptibility. In topological space, both a contravariant fourth rank tensor of non-linear refractive index and a covariant fourth rank tensor of susceptibility are related to the Euler-Poincare characteristic, a topological invariant.

Download

Geometrical optics as U(1) local gauge theory in a flat space-time

We point out that geometrical optics can be treated as an Abelian $U(1)$ local gauge theory in a ... more

Download

Caustics in geometrical optics

We would like to explore deeper the consequence of the geometric optical knot as an integer to th... more

Download

Deflection of light by kink mass

viXra, Aug 1, 2021

We formulate the angle of deflection-mass relation where we replace the mass with the mass of the... more

Download

On the Geometrical Optics and the Atiyah-Singer Index Theorem

viXra, Aug 1, 2021

Catatan Matematikaku

"Catatan Matematikaku" ini ide awalnya adalah kumpulan catatan matematika penulis sejak... more "Catatan Matematikaku" ini ide awalnya adalah kumpulan catatan matematika penulis sejak studi SMP hingga Master Fisika (tentunya catatan yang masih ada) ditambah literatur yang disebut di daftar pustaka. Draf ini masih sangat kasar sehingga pembaca mesti berhati-hati dengan kesalahan penulisan, sistematikanya yang masih acak maupun kesalahan interpretasi penulis. Masukan dan koreksi bisa dilayangkan di alamat email: [email protected]. Insyaallah, draf ini terus diupayakan untuk dilengkapi, diperbaiki. Semoga berguna .. .

Nonlinearity detection of laser frequency tuning for improving spatial resolution in OFDR

Journal of Physics: Conference Series, 2019

High spatial resolution is one of the main requirements in Optical Frequency Domain Reflectometry... more High spatial resolution is one of the main requirements in Optical Frequency Domain Reflectometry (OFDR) system. Swept tuning in laser system which has been widely used in OFDR system is not linear. This nonlinearity can reduce spatial resolution in OFDR system. In this paper, we present a simple signal processing technique for detecting laser nonlinearity tuning in OFDR system. Information about laser nonlinearity which is previously detected will be used for resampling the reflection data from OFDR. The resampling process is used for compensating the existence of nonlinearity. By using this technique, we obtain fifth times resolution enhancement and 0.02 spatial resolution ratio. Moreover, our system is able to detect nonlinearity in laser tuning which takes around 2 seconds of data processing time.

Download

Using 4th order Runge-Kutta method for solving a twisted Skyrme string equation

AIP Conference Proceedings, 2016

We study numerical solution, especially using 4th order Runge-Kutta method, for solving a twisted... more

Model Skyrme SU (2) untuk Hadron

Download

Topological property of Newton's theory of gravitation

We propose the topological property could exist in Newton's theory of gravitation by assuming... more We propose the topological property could exist in Newton's theory of gravitation by assuming that the potential of gravitation consists of the scalar field (this scalar field is a subset of the potential of gravitation). By using the weak-field limit of the gravitational field (far from the sources), the topology of the event horizon of static black holes probably could be related to the knot.

Download

Knot in non-commutative geometrical optics

We would like to formulate a non-commutative geometric optical knot by extending the geometric op... more

Download

$Research paper thumbnail of Refractive index and mass of kink in curved space$

Refractive index and mass of kink in curved space

We propose that mass-energy is a topological charge and a topological charge is a winding number.... more

Download

$Research paper thumbnail of On the refractive index-curvature relation$

On the refractive index-curvature relation

We formulate a relation of the refractive index-curvature in local geometry using the Ricci curva... more

Download

On the electric charge and knot

We propose that the electric charge could be a knot trapped in a multiply connected topology.

Download

Geometric optical travelling wave solution of linearised sine-Gordon equation in (1+1)-dimensional flat space-time

We propose that there exists the geometric optical travelling wave solution of the linearised sin... more

Download

Geometric optical kink in (1+1)-dimensional flat space-time

We propose that the geometric optical kink could exist in (1+1)-dimensional flat space-time.

Download

Geometric optical knot in (3+1)-dimensional flat space-time

We propose that the geometric optical knot could exist in (3+1)-dimensional flat space-time.

Download

Geometric optical knot in (3+1)-dimensional curved space-time

We propose that the geometric optical knot could exist in (3+1)-dimensional curved space-time.

Download

Hidden nonlinearity in Newton's second law of gravitation

We propose that Newton's second law of gravitation, a linear equation, could have hidden nonl... more

Download

$Research paper thumbnail of On phase and refractive index transformations$

On phase and refractive index transformations

We treat the geometrical optics as the phase (gauge) theory. We found that the phase can be relat... more

Download

$Research paper thumbnail of On the non-linear refractive index-curvature relation$

On the non-linear refractive index-curvature relation

Download

Geometrical optics as U(1) local gauge theory in a flat space-time

We point out that geometrical optics can be treated as an Abelian $U(1)$ local gauge theory in a ... more

Download

Caustics in geometrical optics

We would like to explore deeper the consequence of the geometric optical knot as an integer to th... more

Download

Deflection of light by kink mass

viXra, Aug 1, 2021

We formulate the angle of deflection-mass relation where we replace the mass with the mass of the... more

Download

On the Geometrical Optics and the Atiyah-Singer Index Theorem

viXra, Aug 1, 2021

Catatan Matematikaku

Nonlinearity detection of laser frequency tuning for improving spatial resolution in OFDR

Journal of Physics: Conference Series, 2019

Download

Using 4th order Runge-Kutta method for solving a twisted Skyrme string equation

AIP Conference Proceedings, 2016

We study numerical solution, especially using 4th order Runge-Kutta method, for solving a twisted... more

Model Skyrme SU (2) untuk Hadron

Download

Topological property of Newton's theory of gravitation

Download

Knot in non-commutative geometrical optics

We would like to formulate a non-commutative geometric optical knot by extending the geometric op... more

Download

$Research paper thumbnail of Refractive index and mass of kink in curved space$

Refractive index and mass of kink in curved space

We propose that mass-energy is a topological charge and a topological charge is a winding number.... more

Download

$Research paper thumbnail of On the refractive index-curvature relation$

On the refractive index-curvature relation

We formulate a relation of the refractive index-curvature in local geometry using the Ricci curva... more

Download

On the electric charge and knot

We propose that the electric charge could be a knot trapped in a multiply connected topology.

Download

Geometric optical travelling wave solution of linearised sine-Gordon equation in (1+1)-dimensional flat space-time

We propose that there exists the geometric optical travelling wave solution of the linearised sin... more

Download

Geometric optical kink in (1+1)-dimensional flat space-time

We propose that the geometric optical kink could exist in (1+1)-dimensional flat space-time.

Download

Geometric optical knot in (3+1)-dimensional flat space-time

We propose that the geometric optical knot could exist in (3+1)-dimensional flat space-time.

Download

Geometric optical knot in (3+1)-dimensional curved space-time

We propose that the geometric optical knot could exist in (3+1)-dimensional curved space-time.

Download

Miftachul Hadi

Related Authors

Uploads

Papers by Miftachul Hadi

Log In