Articles

A microscope using Zernike’s phase contrast method and a hard x-ray Gabor hologram

In hard X-ray phase imaging using interferometry, the spatial resolution is limited by the pixel size of digital sensors, inhibiting its use in magnifying observation of a sample.

Authors: Kiyofumi Matsuda, Juan C. Aguilar, Masaki Misawa, Masato Yasumoto, Shakil Rehman, Yoshio Suzuki, Akihisa Takeuchi and Ilpo Niskanen

Bidirectional MM-Wave Radio over Fiber transmission through frequency dual 16-tupling of RF local oscillator

In this paper for the first time, a 60 GHz bidirectional Millimeter Wave (MM-Wave) Radio over Fiber (RoF) transmission through a new frequency dual 16-tupling of 3.75 GHz local oscillator (LO) is demonstrated....

Authors: K. Esakki Muthu and A. Sivanantha Raja

One–dimensional TiO₂/SiO₂ photonic crystal filter for thermophotovoltaic applications

The efficiency of a thermal conversion system requires adequate radiative properties. In a thermophotovoltaic system, the optical filter plays a key role into the overall performance of the system. The purpose...

Authors: Fabrice Kwefeu Mbakop, Noël Djongyang and Danwé Raїdandi

Reduced Graphene Oxide nano-composites layer on fiber optic tip sensor reflectance response for sensing of aqueous ethanol

In this study, the used of tapered optical fiber tip as sensors coated with reduced Graphene Oxide (rGO) is investigated. The resultant rGO nanocomposites coated on the tapered fiber sensor were characterized ...

Authors: M. A. A. Rosli, P. T. Arasu, A. S. M. Noor, H. N. Lim and N. M. Huang

Optical system for measuring the spectral retardance function in an extended range

Optical retarders are key elements for the control of the state of polarization of light, and their wavelength dependance is of great importance in a number of applications.

Authors: Abdelghafour Messaadi, María del Mar Sánchez-López, Pascuala García-Martínez, Asticio Vargas and Ignacio Moreno

MMI filters configuration for dual-wavelength generation in a ring cavity erbium-doped fibre laser

Dual wavelength laser generation has been of constant interest due to their applications in optical communications and teraheartz generation. A novel configuration for Dual-wavelength laser generation based on...

Authors: Ricardo I. Álvarez-Tamayo, José G. Aguilar-Soto, Manuel Durán-Sánchez, José E. Antonio-López, Baldemar Ibarra-Escamilla and Evgeny A. Kuzin

LED-based Vis-NIR spectrally tunable light source - the optimization algorithm

A novel numerical method for calculating the contributions of individual diodes in a set of light emitting diodes (LEDs), aimed at simulating a blackbody radiation source, is examined. The intended purpose of ...

Authors: M. Lukovic, V. Lukovic, I. Belca, B. Kasalica, I. Stanimirovic and M. Vicic

Analysis of dispersion effect on a NRZ-OOK terrestrial free-space optical transmission system

In this paper, the impact of the dispersion effect, due to atmospheric pressure and temperature, on NRZ-OOK terrestrial free-space optical transmission system is investigated. An expression for the dispersion ...

Authors: Mohamed Bouhadda, Fouad Mohamed Abbou, Mustapha Serhani, Fouad Chaatit and Ali Boutoulout

Measurement to radius of Newton’s ring fringes using polar coordinate transform

Newton’s ring method is often used to measure many physical parameters. And some measured physical quantity can be extracted by calculating the radius parameter of circular fringes from Newton's ring configu...

Authors: Ping An, Fu-zhong Bai, Zhen Liu, Xiao-juan Gao and Xiao-qiang Wang

Fluorometry in application to fingerprint of petroleum products present in the natural waters

This study analyses the possibility of optical detection of trace amounts of oil in natural waters. Since petroleum and its derivatives induced by ultraviolet light exhibit a high intensity of fluorescence, th...

Authors: Emilia Baszanowska and Zbigniew Otremba

A single mode porous-core square lattice photonic crystal fiber for THz wave propagation

Interests on low-loss terahertz (THz) waveguides are increasing due to their remarkable applications in various fields. Since most the materials are highly absorbent to THz waves therefore it is an ongoing cha...

Authors: Md. Rabiul Hasan, Md. Ariful Islam and Ahmmed A. Rifat

Universal optical setup for phase-shifting and spatial-carrier digital speckle pattern interferometry

Digital speckle pattern interferometry (DSPI) is a competitive optical tool for full-field deformation measurement. The two main types of DSPI, phase-shifting DSPI (PS-DSPI) and spatial-carrier DSPI (SC-DSPI),...

Authors: Sijin Wu, Mingli Dong, Yao Fang and Lianxiang Yang

Two nonlinear optical processes in Z-scan curves of a bleached photographic film

In this work, the experimental behavior observed in the z-scan curves of a sample of bleached photographic film for different incident powers is theoretically modeled.

Authors: E. Reynoso-Lara, A. Balbuena-Ortega, Y. E. Bravo-García, J. A. Dávila-Pintle, M. L. Arroyo-Carrasco and M. D. Iturbe-Castillo

Laguerre-Gaussian mode division multiplexing in multimode fiber using SLMs in VCSEL arrays

Mode division multiplexing (MDM) is a promising technology for increasing the aggregate bandwidth of multimode fiber (MMF) in conjunction with wavelength division multiplexing (WDM) in face of the impending ca...

Authors: Angela Amphawan and Yousef Fazea

Improved least-squares method for phase-to-height relationship in fringe projection profilometry

The height estimating function is very important for three-dimensional (3-D) measurement systems based on a digital light processing (DLP) projector and a camera. Sinusoidal fringe patterns of the projector ar...

Authors: Byeong-Mook Chung

Autocorrelation noise free Optical Coherence Tomography using the novel concept of resonant OCT (ROCT)

Optical Coherence Tomography OCT is a noninvasive imaging technique that takes pictures of cross sections of human body tissues with a great resolution compared to other techniques. Fourier Domain OCT method p...

Authors: M. Shalaby and Sulaiman S. Al-Sowayan

Stair phase-coding fringe plus phase-shifting used in 3D measuring profilometry

As the number of codewords adopted in phase-coding fringes increases, the solution of fringe orders leads to many mistakes. Consequently, errors of the unwrapped phase occur. Thus, increasing the codeword appr...

Authors: Zhuohuan Zeng, Biao Li, Yanjun Fu and Minggang Chai

Erratum to: Phase space of partially coherent light with discontinuous surfaces

Authors: Minyi Zhong and Herbert Gross

Propagation algorithms for Wigner functions

We propose an algorithm to remove a parabolic wavefront from a convergent or divergent beam in the Wigner function. Using this approach we numerically collimate the beam. This avoids a dense sampling in phase ...

Authors: Minyi Zhong and Herbert Gross

Optimum apodization profile for chirped fiber Bragg gratings based chromatic dispersion compensator

In this paper, we optimized the apodization profile to improve the dispersion compensation performance of the chirped fiber Bragg gratings (CFBGs). Half tanh half uniform (HTHU), half exponential half uniform ...

Authors: Y. T. Aladadi, A. F. Abas and M. T. Alresheedi

Deriving image features for autonomous classification from time-series recurrence plots

This paper shows the use of a specific type of time series analyses, the so named recurrence plot (RP), for investigations of the outer hull of an imaged and pre-segmented object to derive image features suita...

Authors: Jan Schulz, Andrea Mentges and Oliver Zielinski

New chapter of Journal of the European Optical Society Rapid Publications

Authors: Kai-Erik Peiponen

Phase space of partially coherent light with discontinuous surfaces

We propagate partially coherent light through discontinuous surfaces and analyze the optical effects in phase space. The discontinuous surfaces are classified into two types, those with discontinuity in space ...

Authors: Minyi Zhong and Herbert Gross

Ring-shaped bifocal lens used for fluorescent self-referenced holographic imaging

We propose an alternative and simple solution to self-referenced digital holographic imaging based on a ring-shaped bifocal lens, without the need of any mirrors, polarizers or spatial light modulators. We dis...

Authors: Márton Zsolt Kiss

Computational analysis of cooling dynamics in photonic-crystal-based thermal switches

The paper presents optical and thermal simulations of two kinds of thermally controlled silicon Photonic Crystal devices: an air hole in silicon slab that switches between two refractive behaviors, and a T-sha...

Authors: Principia Dardano, Massimo Borrelli, Marilena Musto, Giuseppe Rotondo and Mario Iodice