Advances in Optical Science and Engineering: Proceedings of by Vasudevan Lakshminarayanan, Indrani Bhattacharya

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By Vasudevan Lakshminarayanan, Indrani Bhattacharya

The lawsuits of First overseas convention on Opto-Electronics and utilized Optics 2014, IEM OPTRONIX 2014 offers the learn contributions awarded within the convention by way of researchers from either India and in another country. Contributions from demonstrated scientists in addition to scholars are integrated. The booklet is geared up to allow easy accessibility to varied subject matters of interest.

The first half contains the Keynote addresses through Phillip Russell, Max Planck Institute of the sunshine Sciences, Erlangen, Germany and Lorenzo Pavesi, collage of Trento, Italy.

The moment half makes a speciality of the Plenary Talks given by means of eminent scientists, specifically, Azizur Rahman, urban college London, London; Bishnu friend, President, The Optical Society of India; Kamakhya Ghatak, nationwide Institute of expertise, Agartala; Kehar Singh, Former Professor, India Institute of know-how Delhi; Mourad Zghal, SUPCOM, collage of Carthage, Tunisia; Partha Roy Chaudhuri, IIT Kharagpur; S okay. Bhadra, CSIR-Central Glass and Ceramic study Institute, Kolkata; Sanjib Chatterjee, Raja Ramanna Centre for complex know-how, Indore; Takeo Sasaki, Tokyo college, Japan; Lakshminarayan Hazra, Emeritus Professor, collage of Calcutta, Kolkata; Shyam Akashe, ITM collage, Gwalior and Vasudevan Lakshminarayanan, college of Waterloo, Canada.

The next components specialise in topic-wise contributory papers in program of solar power; Diffraction Tomography; E.M. Radiation conception and Antenna; Fibre Optics and units; Photonics for area functions; Micro-Electronics and VLSI; Nano-Photonics, Bio-Photonics and Bio-Medical Optics; Non-linear Phenomena and Chaos; Optical and electronic info and photograph Processing; Optical Communications and Networks; Optical layout; Opto-Electronic units; Opto-Electronic fabrics and Quantum Optics and knowledge Processing.

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Opt Lett 38:3592–3595 6. Emaury F, Dutin CF, Saraceno CJ, Trant M, Heckl OH, Wang YY, Schriber C, Gerome F, Sudmeyer T, Benabid F, Keller U (2013) Beam delivery and pulse compression to sub-50 fs of a modelocked thin-disk laser in a gas-filled Kagome-type HC-PCF fiber. Opt Express 21:4986–4994 7. Mak KF, Travers JC, Hölzer P, Joly NY, Russell PStJ (2013) Tunable vacuum-UV to visible ultrafast pulse source based on gas-filled kagome-PCF. Opt Express 21:10942–10953 8. Couny F, Benabid F, Roberts PJ, Light PS, Raymer MG (2007) Generation and photonic guidance of multi-octave optical-frequency combs.

The proposed scheme (Fig. 11) has been validated for grayscale secret target images, by numerical simulation. 1 Simulation Results The efficacy of the scheme has been evaluated by computing mean-squared-error (MSE) between the secret target image and the decrypted image. K. Yadav et al. Fig. 9 Simulation results, a arbitrary input, b annular image, c FrMT image, d secret image, e phase key from phase retrieval algorithm, f decrypted image Reference Image Amplitude Random Phase Phase Amplitude FrFT (α, α) Phase Secret Image S(x,y) Amplitude Amplitude FrFT (-α, -α) Phase Phase Fig.

Yadav et al. 1 Fully-Phase Image Encryption Using Double RandomStructured Phase Masks in Gyrator Domain [2] The phase-images are known to be more secure and resistant to noise as compared to their amplitude counterparts [3, 4]. The use of canonical transforms for encryption is well-documented in the literature. One such canonical transform, the gyrator transform (GT) was introduced in the field of optics and image processing by Rodrigo et al. [5]. 1 The Gyrator Transform The GT, similar to the fractional Fourier transform (FrFT), produces rotation in the twisted position-spatial frequency planes.

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