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Scientific and Engineering Applications of Full-field Swept-sourceOptical Coherence Tomography
Dalip Singh Mehta,Tulsi Anna,Chandra Shakher 한국광학회 2009 Current Optics and Photonics Vol.13 No.3
We report the development of full-field swept-source optical coherence tomography (SS-OCT) in the wavelength range of 815-870 nm using a unique combination of super-luminescent diode (SLD) as broad-band light source and acousto-optic tunable filter (AOTF) as a frequency-scanning device. Some new applications of full-field SS-OCT in forensic sciences and engineering materials have been demonstrated. Results of simultaneous topography and tomography of latent fingerprints, silicon microelectronic circuits and composite materials are presented. The main advantages of the present system are completely non-mechanical scanning, wide-field, compact and low-cost.
Effect of Psycosomatic Factors in Oral Diseases
Suman Sen,Ankit Saha,Tulsi Singh 대한예방치과학회 2014 International Journal of Clinical Preventive Denti Vol.10 No.2
Interaction between body and mind and its disease is a constant process. Psychosomatic disorders are manifestations of physical imbalance in which emotional components have a strong influence. Oral mucosa shows the indirect result of an emotional problem. Psychosomatic factor plays an important role in the causation of different forms of mucosal changes Major risk factor that could influence the initiation and progression of oromucosal diseases are emotional factor like stress, anxiety and depression. Most human studies have found significant associations between certain psychosocial factors and oral disease like lichen planus, apthous ulcer, burning mouth syndrome, nectrotizing gingivitis and periodontal diseases.