Results 81 to 90 of about 3,955 (210)

Characterization and Optimization of Field of View in a Holographic Waveguide Display

IEEE Photonics Journal, 2017
The paper presents the characterization of the field of view (FOV) in a holographic waveguide display (HWD) with a broadband spectrum image source. The influences of parameters such as grating slanted angle of volume holographic grating (VHG), grating ...
Zhongwen Shen, Yuning Zhang, Yishi Weng, Xiaohua Li   +3 more
doaj   +1 more source

Development of a Holographic Directional Volumetric Display

IEEE Access
In previous studies, we introduced a directional volumetric display which can project in multiple directions by superimposing different two-dimensional images in three-dimensional space. However, thread-type displays exhibit focus and pixel size issues due to projector limitations.
Renta Noguchi, Tomoya Isayama, Takashi Nishitsuji, Hirotaka Nakayama, Tomoyoshi Shimobaba, Tomoyoshi Ito, Atsushi Shiraki   +6 more
openaire   +2 more sources

Nanophotonic Biosensors and the Paradigm of Trans‐Scale Autonomous Bio‐Integrated Diagnostics for Addressing Health Complexities

Electron, EarlyView.
Physics‐driven advances in optical nanobiosensors for rapid, miniaturized, and point‐of‐care diagnostics for next‐generation decentralized and personalized healthcare based on sensor intelligence. ABSTRACT Public health emergencies and the escalating burden of chronic diseases necessitate a paradigm shift from centralized laboratory testing to rapid ...
Vishal Chaudhary, Harsh Sable, Sonu Sonu, Lakshita Phor, Reddicherla Umapathi, Pradeep Bhadola   +5 more
wiley   +1 more source

Review of millimeter‐wave and terahertz near‐field synthetic aperture radar imaging technology

InfoScience, EarlyView.
Abstract This paper comprehensively reviews the development of millimeter‐wave (MMW) and terahertz (THz) near‐field imaging technologies, with an emphasis on the state of synthetic aperture radar (SAR)‐based imaging technologies. Near‐field imaging technologies are categorized into passive and active imaging modes, among which active imaging is favored
Qi Yang, Hongqiang Wang, Xu Chen, Xin Peng   +3 more
wiley   +1 more source

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

InfoMat, EarlyView.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source

Computational load reduction by avoiding the recalculation of angular redundancy in computer‐generated holograms

ETRI Journal, 2019
A fast hologram calculation approach is proposed to reduce computational load by avoiding the recalculation of redundancy information. In the proposed method, the hologram is divided into several sub‐holograms that record and reconstruct different views ...
Jia Jia, Jhensi Chen, Daping Chu
doaj   +1 more source

An ultrahigh-fidelity 3D holographic display using scattering to homogenize the angular spectrum. [PDF]

Sci Adv, 2023
Yang J, Li LS, He Q, Li C, Qu Y, Wang LV.   +5 more
europepmc   +1 more source

The Illusion of Structural Order: Evaluating the Suppression of Amorphous Carbon Black Pigment Bands in SSE‐Processed Handheld Raman Spectra

Journal of Raman Spectroscopy, EarlyView.
The handheld Raman with SSE system efficiently mitigates fluorescence; however, it may also bias the Raman response towards graphitic domains in carbon‐based black pigments, thereby concealing amorphous carbon contributions that are critical for pigment type identification.
Zeynep Alp, Christoph Herm
wiley   +1 more source

Designing the image integrated between real reality and holography

Maǧallaẗ Al-Turāṯ wa Al-Taṣmīm
Three-dimensional holographic display technology is a sign of future technology and communications. This technology received global attention for the first time in 2008 when first time as a hologram with the aim of reducing the environmental impact of ...
Prof. Dr. Safwat Abdel Halim Prof. Dr. Wael Mohamed Anani Shehab Muhammad Jamal al-Din Qayati
doaj   +1 more source

Digital Holographic Printing Methods for 3D Visualization of Cultural Heritage Artifacts

Digital Presentation and Preservation of Cultural and Scientific Heritage, 2014
Holography enables capture and reconstruction of the optical field scattered from three-dimensional (3D) objects. The hologram encodes both amplitude and phase of the field under coherent illumination, whereas photography records only the amplitude by ...
Hoonjong Kang, Elena Stoykova, Nataliya Berberova, Jiyong Park, Youngmin Kim, Joo Sup Park, Sunghee Hong, Branimir Ivanov, Dimana Nazarova, Nikola Malinowski   +9 more
doaj   +1 more source