SPIE Spotlights

Series Editor: Robert D. Fiete

SPIE Spotlights are new eBooks featuring 20-60 pages of concise, focused, digital-only material that either summarize a broad topic or highlight a specific niche. Written for a wide audience, these peer-reviewed eBooks get straight to the point, highlighting the most important aspects of the given subject.


Authors: Giancarlo C. Righini; Silvia Soria   |   Published: 2017   |   DOI: 10.1117/3.2272482

This Spotlight examines an increasingly popular class of optical sensors that comprises microresonators based on the propagation of whispering gallery modes (WGMs). Several 2D and 3D WGM microresonators have already proved their capabilities as general-purpose sensors (especially as biosensors), and they have potential applications outside of research laboratories.

Author: Hui Sun   |   Published: 2017   |   DOI: 10.1117/3.2272479

Multiple commercial femtosecond lasers have been cleared for use by the US Food and Drug Administration for ophthalmic surgery, including the creation of corneal flaps in LASIK surgery. Optical coherence tomography (OCT) is an established medical imaging technique that uses light to capture micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue).

Author: Max J. Riedl   |   Published: 2017   |   DOI: 10.1117/3.2272475

This Spotlight explores ways to address axial imaging limitations, i.e., spherical and chromatic aberrations. For the reduction of the additional, so-called primary aberrations, coma, astigmatism, field curvature, distortion, and chromatic aberration, more advanced methods have to be applied. In an extended field-covering system it is frequently necessary to balance the aberration contributions to avoid the predominance of one or more specific image spreads.


Authors: Nam Kim; Munkh-Uchral Erdenebat;   |   Published: 2016   |   DOI: 10.1117/3.2244893

This Spotlight presents the 3D integral photography technique and its fundamentals, features, and practical applications. First, the basic concepts for the EIA acquisition and the 3D image reconstruction process are described. The main advantages and disadvantages of the integral photography are explained, followed by the computer-generation and digital-reconstruction methods.

Author: Dana Seyringer   |   Published: 2016   |   DOI: 10.1117/3.2242852

This Spotlight provides an overview of the life cycle of arrayed waveguide gratings (AWGs), from design and simulation to evaluation and technological verification. The book describes the AWG design procedure by applying a new software tool. It discusses the appropriateness of different commercially available photonics tools, and their advantages and disadvantages.

Authors: Surya P. Singh; Arja M. Kullaa   |   Published: 2016   |   DOI: 10.1117/3.2235415

This Spotlight presents a comprehensive review of recent developments in the field of optical spectroscopy toward an alternate method for oral cancer diagnosis. The first section of the book has details about incidence, etiology, and existing screening methods, and it ends with a short note on the limitations of current techniques, suggesting the need of alternative approaches.

Author: Tommy Gmünder   |   Published: 2016   |   DOI: 10.1117/3.2258675

Digital Light Processing (DLP) is a multipurpose, robust, modern, and easily accessible optical technology that uses Digital Micromirror Devices (DMDs), which reflect light pixelwise from a light source to a target. This Spotlight describes how to set up and implement DLP in various applications, such as training kits, reference designs, test equipment, and how to get the quickest and most efficient learning experience.

Author: Sarah J. Lukes   |   Published: 2016   |   DOI: 10.1117/3.2248542

This Spotlight introduces miniature varifocus elements and covers the optical equations needed to integrate them with microscopes. It reviews the current technological capabilities and limitations of different varifocus elements, such as deformable membrane mirrors, liquid crystal devices, liquid lenses, and vertical displacement microlenses.

Authors: Carmen M. Ruiz; David Duché; Judikaël Le Rouzo   |   Published: 2016   |
DOI: 10.1117/3.2244890

This Spotlight describes the methods used for the optical characterization and design of thin-film solar cells. A description of the cells under study (CdTe, CIGS, CZTS, Perovskite, and organic) is given, followed by coupling experimental and simulation studies in order to improve solar cell performances.

Authors: Raymond K. Kostuk; Jose Castro; Deming Zhang; Juan M. Russo; Shelby Vorndran  |   Published: 2016   |  DOI: 10.1117/3.2239798

This Spotlight provides an overview of the use of holographic optical elements in a variety of solar-energy-conversion applications, such as holographic planar concentrators (HPCs), ultra-light trapping filters for thin-film PV cells and a variety of spectrum-splitting filters for high-efficiency PV and hybrid energy-conversion systems.

Author: Dana Seyringer   |   Published: 2016   |   DOI: 10.1117/3.2256725

This Spotlight discusses how to use a standard commercial digital camera as a very exact metering device in correlation, colorimetric, and intensity measurements. After extracting and calibrating linear data from the camera matrix, the resulting characteristics are comparable with those of technical cameras.

Authors: Sabine Koelle; Matthias Trottmann | Published: 2016 | DOI: 10.1117/3.2248539

Using rodent and bovine subjects as models, this Spotlight focuses on the methodology and diagnostic value of three new imaging technologies to visualize the physiology and pathology of the male and female genital tract under in vivo conditions. These methods include digital videomicroscopy and probe-based laser endomicroscopy (pCLE).

Authors: Duncan L. Hickman; Moira I. Smith | Published: 2016 | DOI: 10.1117/3.2235418

Advances in computers and software tools have fueled the demand for increasingly sophisticated mathematical models and simulators. This Spotlight provides guidance for maximizing the benefits of modeling within a project as the project evolves through its lifecycle.

Authors: Laura Sironi; Laura D'Alfonso; Pablo Blinder; Margaux Bouzin; Nicolo Giovanni Ceffa; Maddalena Collini; Giuseppe Chirico   |   Published: 2016   |   DOI: 10.1117/3.2256729

This Spotlight reviews non-invasive optical methods to determine the blood flow velocity in microcirculation, with an emphasis on the most recent developments, that may be routinely applied in cellular biology laboratories.

Authors: Anirban Pathak; Anindita Banerjee   |   Published: 2016   |   DOI: 10.1117/3.2240896

This Spotlight provides a general introduction to linear and nonlinear optical components that are frequently used for implementation of protocols for quantum computation and communication. The role of each optical element is described briefly, and it is shown that these optical elements can be combined to constitute quantum circuits for performing various quantum computing and communication tasks. Present challenges and future scopes are also mentioned.

Authors: Jignesh Bhatt ; Manjunath V. Joshi   |   Published: 2016   |   DOI: 10.1117/3.2264037

Spectral unmixing is a challenging mixed-pixel decomposition problem that can be addressed by regularization This Spotlight presents methods to obtain better estimates of underlying abundances. It discusses least-squares, total-least squares, and Markov random-field-based frameworks to unmix hyperspectral data.

Authors: Todd Otanicar; Drew DeJarnette   |   Published: 2016   |   DOI: 10.1117/3.2256722

This Spotlight describes energy harvesting using a hybrid concentrating photovoltaic (PV) system with simultaneous thermal generation for energy storage. Several designs have been proposed to build a system that takes advantage of the entire solar spectrum through direct electric generation using concentrated light onto photovoltaics while generating thermal energy using wavelengths of light not captured by the PV cell.

Authors: Shanyong Chen; Shengyi Li; Yifan Dai | Published: 2016 | DOI: 10.1117/3.2242227

Wavefront interferometry is a standard solution when measuring optical surface error or wavefront aberrations. However, the lateral range of measurement is usually limited by the aperture of the interferometer. Subaperture stitching interferometry solves this problem by dividing the full aperture into a series of smaller, overlapping subapertures that are measured individuallyb before being stitched back together.


Authors: Ti Zhang; Huizhong Cui   |   Published: 2015   |   DOI: 10.1117/3.2197936

Carbon-based nanoparticles have been actively studied and employed in the biomedical field as contrast agents in photoacoustic (PA) imaging, which is one of the novel and promising hybrid imaging modalities that combines high-optical contrast and excellent ultrasonic resolution.

Author: Dennis Leiner   |   Published: 2015   |   DOI: 10.1117/3.2235283

Miniature optical systems required for digital endoscopes present unique challenges in lens design and manufacture. This Spotlight provides a tutorial on the key optical design considerations required for video endoscope systems. The text compares different types of endoscopes and discusses their advantages and disadvantages.

Author: Hui Sun   |   Published: 2015   |   DOI: 10.1117/3.2205866

Over the last decade, the field of femtosecond eye surgery has expanded rapidly, supporting the advantage of combined high ablation precision and minimized collateral tissue effects. One of the most promising applications for femtosecond laser eye surgery has been corneal surgery, namely laser in-situ keratomileusis (LASIK) surgery, where the high-pressure laser plasma non-thermally dissociates the dense corneal tissue thereby enabling lamellar cornea procedures with minimized side effects and subsequent excimer laser shapes the cornea surface.

Author: Ken Barat   |   Published: 2015   |   DOI: 10.1117/3.2184896

The opportunity to set up one's lab is always a great occasion. In doing so, there are items one can easily overlook. The goal of this book is to present dos and don'ts when setting up a laser lab. Often the researcher and the facilities staff do not understand each other's needs and perspective.

Author: Robert D. Fiete   |   Published: 2015   |   DOI: 10.1117/3.2184893

This book provides a tutorial on the image resolution capabilities of a camera system by examining the zoom and enhance capability portrayed in Hollywood productions. As an example, images will be captured with a consumer camera to simulate the scenario we have seen performed by crime scene investigators where they zoom in on the reflection of an eye to get a clear piecutres of the assailant.

Author: Xiang Zhu   |   Published: 2015   |   DOI: 10.1117/3.2225994

LADAR is a key sensing technology for the relative navigation between a debris-removing satellite and a debris. Compared to cameras and radar, LADAR provides better information about a target’s range, speed, and 3D position. Although LADAR does not need sunlight to operate, it does require more resources on mass, volume, and power (MVP) than a passive sensor.

Authors: Gage J. Greening; Haley M. James; Timothy J. Muldoon   |   Published: 2015   |   DOI: 10.1117/3.2226012

This Spotlight describes the use of optical phantoms as validation tools for probe-based imaging and spectroscopy platforms. Composition of optical phantoms, including scattering and absorbing agents, is discussed in the context of their specific application.

Authors: Minghong Yang; Dongwen Lee; Yutang Dai   |   Published: 2015   |   DOI: 10.1117/3.2195943

In optical sensing, the most recent and important enabling technologies are based on either the longitudinal or transverse structuring of fibers. Bragg gratings are a typical example of the longitudinal structuring of fibers, while microstructured fibers [e.g., photonic crystal fibers (PCFs)] are the promising enabling technology in terms of transverse structuring of fibers.

Author: Elena Sokolova   |   Published: 2015   |   DOI: 10.1117/3.2202298

The unique properties of diffraction gratings make the optical design of diffraction spectrometers a complex problem. This Spotlight connects optical design and diffraction grating fabrication to address issues of diffraction efficiency, tolerance analysis, and optimization techniques.

Authors: Tanmoy Bhattacharjee; Chilakapati Murali Krishna | Published: 2015 | DOI: 10.1117/3.2217856

Since the discovery of inelastic scattering in 1928, scientists have developed a technique to elucidate the chemical constituents of complex samples and reveal their molecular structures. The result – Raman spectroscopy – is a forerunner in biomedical applications.

Are you interested in writing a Spotlight? View the Calls for Authors, or submit a synopsis and your CV for review in any of the areas listed below. If you have any questions or wish to discuss your authorship, please contact SPIE Press Manager Tim Lamkins.

Editorial Board Members

  • Aerospace and Defense Technologies - Rick Kendrick, Lockheed Martin
  • Biomedical Optics and Medical Imaging - Brian Sorg, National Cancer Institute
  • Electronic Imaging and Signal Processing - Sohail Dianat, Rochester Institute of Technology
  • Energy and the Environment - Paul Lane, US Naval Research Lab
  • Optical Design and Engineering - Rich Youngworth, Riyo, LLC
  • Semiconductor, Nanotechnology, and Quantum Technology - Stefan Preble, Rochester Institute of Technology

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