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IEEE Photonics Journal
Scopus
ISSN 1943-0655 · IEEE · 6.707 artikel di indeks
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Artikel Jurnal
Numerical Analysis of Localized Electric Field Enhancement in Apertureless Near Field Optical Microscopy
In this work, we investigate the effects of two distinct physical mechanisms, the antenna effect and plasmon resonance, on electric field enhancement in representative geometrical structures and at the apex of a sharp tip. The three-dimensional (3D) apertureless surface near-field optical…
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Artikel Jurnal
Two-Photon Excitation Fluorescence Imaging With a Photon-Counting Camera: Improved Resolution for Biomedical Applications
Two-photon excitation fluorescence (TPEF) is a multiphoton imaging technique to visualize non-stained biological tissues. This technique is limited by both the use of a scanning unit and the data sequential acquisition by a single-point detector. The use of alternative detectors based on spatially…
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Practical Guide of Key Physical Considerations in Numerical Analysis for Nanophotonic Experiments
Interest in the ever-expanding field of nanoscopy techniques has greatly increased in recent years. Specifically, in-depth characterization through optical techniques capable of nano-resolution enables a deep understanding of nanostructures and their near field domain. Due to the need to detect…
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Artikel Jurnal
3D-Imaging Endoscopy Through Electronic Focusing
Conventional endoscopic systems provide two-dimensional images of three-dimensional structures. Real depth information is lost in these systems. Therefore, depth perception relies uniquely on monocular cues, such as occlusions, shadows or motion parallax. Three-dimensional endoscopy has been…
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Detection of Lymph Node Invasion Using Digital Holographic Images and Machine Learning
An accurate detection of the spread of colorectal cancer to lymph nodes is a critical factor in determining the patient prognosis and treatment. Standard histological evaluation faces significant challenges that start from the intrinsic fragility of lymph node tissues, making them difficult to…
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Artikel Jurnal
Electrical Versus Optical Generation of Leader Signals for Downconversion Leader-Follower Optical Coherence Tomography
The paper refers to advancements in the production of en-face optical coherence tomography (OCT) images from different depths in a sample in real time, using Downconversion Leader-Follower optical coherence tomography method. So far, for a sample placed in an interferometer (Follower), all previous…
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Artikel Jurnal
Multiphoton Imaging With Frequency Encoded Illumination Using Dual Acousto-Optic Deflectors
We report on the prototype and design of a new multimodal acousto-optic deflector based multiphoton/structured light microscope. The prototype features two orthogonally arranged acousto-optic deflectors (AODs) integrated into a Mach-Zehnder interferometer, enabling fast, flexible light pattern…
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Artikel Jurnal
Hyperspectral Vectors for Machine Learning Segmentation of Stained and Unstained Cells From Serous Cavity Effusions
In addition to information about cell morphology, hyperspectral images (HSIs) provide consistent spectral details across hundreds of wavelengths. Cytological analysis of samples extracted from serous cavity effusions is used to diagnose their benign or malignant origin but faces several challenges…
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Artikel Jurnal
Real-Time Brillouin Microscopy for Linewidth Imaging of Protein Condensates in Living Cells
We propose a label-free, high-resolution approach to investigate pathological protein aggregation and aberrant phase behavior in living cells. Intracellular protein aggregates associated with neurodegenerative diseases are increasingly recognized for their impact on cellular mechanics and…
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Artikel Jurnal
Size-Change Behavior of Free-Form Microstructures During Ultrafast Laser Direct Writing Within Pure-Protein Precursors
Ultrafast laser direct writing (LDW) is a versatile 3D microfabrication technology with a high spatial resolution, reduced heat accumulation, and a diverse range of applications usually tied to the applied precursor material. When using a protein precursor, it is possible to fabricate proteinaceous…
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Artikel Jurnal
From Recording to Intervention: Causal Lineage Tracing With Primed Conversion
Predicting cell fate requires reconstructing a cell's integrated history: its lineage, the signals it received, how its internal state evolved and its spatial context. Existing recording methods write this information into DNA and read it only at the experiment's end, allowing reconstruction of…
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Artikel Jurnal
Optical Metabolic Imaging of Human Skin Using Multiphoton FLIM Tomography
Optical metabolic imaging (OMI) of human skin is based on the cellular autofluorescence, mainly due to two-photon excitation of fluorescent coenzymes such as NAD(P)H (reduced nicotinamide adenine dinucleotide) and FAD (flavin adenine dinucleotide), with a near infrared femtosecond laser at high MHz…
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Artikel Jurnal
No-Reference Image Quality Assessment for SHG and Re-Scan SHG Microscopy: A Comparative Study
We investigate the performance of selected no-reference image quality assessment (NR-IQA) metrics on raw and deconvolved second-harmonic generation (SHG) and re-scan SHG (rSHG) microscopy images. A dataset comprising 150 SHG–rSHG paired images was processed using the Huygens Professional…
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Artikel Jurnal
Fabrication, s-SNOM Characterization and in vitro Testing of Laser-Induced Periodic Surface Structures for Dental Abutment Applications
Surface modification of titanium (Ti) and titanium alloy (Ti6Al4V) for medical implants is frequently required to improve material characteristics and reduce predisposing factors to bacterial invasion and infection. In case of dental abutments, due to close contact of the material with peri-implant…
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Artikel Jurnal
An Isolation Apparatus for CO2 Nanosecond Laser Systems
An isolation apparatus for far-infrared wavelengths was developed and integrated into a CO2 nanosecond laser system for performance evaluation. The apparatus uses a dual acousto-optic modulator (AOM) configuration combined with an image-relaying delay line to achieve high isolation of…
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Artikel Jurnal
Quantum Message Authentication Code Independent of Computational Difficulty
The rise of quantum computing poses significant challenges to security systems, with traditional message authentication codes (MACs) at unprecedented risk of compromise. This paper proposes a quantum message authentication code (QMAC) leveraging quantum mechanics to achieve robust security. The…
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Artikel Jurnal
Dynamic Characterization of Aero-Optical Effects and Imaging Variations in Hypersonic Flow Fields
With the advancement of hypersonic vehicle technology, aero-optical effects on airborne imaging have attracted considerable research attention. However, prior research has primarily focused on stable aberrations and the influence of hypersonic flow fields on aero-optical mechanisms under various…
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Artikel Jurnal
Genetic Algorithm-Driven Optimization of Multi-Tone Phase Modulation Signals for SBS Suppression in High-Power Fiber Amplifiers
To meet the demands of high-power, narrow-linewidth fiber lasers in defense and industrial applications, stimulated Brillouin scattering (SBS) has emerged as a critical bottleneck limiting power scaling. Conventional SBS suppression techniques, such as white noise and pseudo-random binary sequence…
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Artikel Jurnal
A Study on Optimal Design of Polarization-Independent Magneto-Metasurface Isolators Based on Multi-Material Topology Optimization
Metasurface has attracted a lot of attentions because they can realize properties that cannot be achieved with ordinary materials and are easy to be fabricated using established fabrication processes. In this paper, in order to design metasurface without requiring designer's experience and…
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