High-precise multi-cell indoor visible light positioning based on machine learning for Indoor millimeter-wave/terahertz communication assistance

Integration of Deep Learning and Machine Learning for Label-Free Two-Photon Imaging-Based Classification of Oral Lesions: A Pilot Study

Manikanth Karnati, Jackson Rodrigues, Gagan Raju, Edwin Pious, Vathsala Patil, Adarsh Kudva, et al.

Integration of Deep Learning and Machine Learning for Label-Free Two-Photon Imaging-Based Classification of Oral Lesions: A Pilot Study

Manikanth Karnati, Jackson Rodrigues, Gagan Raju, Edwin Pious, Vathsala Patil, A. Kudva, et al.

TL;DR: An integrated pipeline combining TPF imaging with ConvNeXt-Small network-based feature extraction and machine learning classification is proposed for rapid, objective, and label-free screening of oral lesions.

Early and objective diagnosis of oral squamous cell carcinoma (OSCC) and oral potentially malignant disorders (OPMDs) remains challenging due to limitations in conventional histopathology, including sampling bias, staining variability, and subjective interpretation. Label-free mu…Read more

Photonics Breakthroughs 2025: Parallel Photonic Machine Learning With a Nonlinear Amplifying Loop Mirror

L. Lauro, A. Aadhi, I. Alamgir, B. Fischer, P. Dmitriev, C. Mazoukh, et al.

TL;DR: This work presents and discusses their recent work on a tunable neuromorphic photonic reservoir based on a nonlinear amplifying loop mirror and places it within the broader context of recent advances in photonic reservoir computing.

Neuromorphic photonics has emerged as a promising route for brain-inspired information processing, with optical neural networks offering a path beyond key bandwidth and energy bottlenecks of conventional electronic hardware. Within this landscape, photonic reservoir computing has…Read more

Realization of All-Optical Nonlinear Activation Function in Photonic Nano-Beam Resonators for Application in Optical Neural Networks

Samaneh Amiri, Mehdi Miri

This study presents the development of a novel nonlinear activation function (NLAF) for integrated optical neural networks (ONNs), leveraging a thermally actuated photonic crystal (PC) nanobeam resonator (PCNBR) integrated with a phase-change material (GST). For the first time, t…Read more

Wide Field-of-View (FOV) and Bidirectional Unmanned-Aerial-Vehicle (UAV) Based Optical Wireless Communication (OWC) Using Camera

Yun-Han Chang, Chi-Wai Chow, Yu‐Heng Hong, Hao-Chung Kuo

TL;DR: This work puts forward and presents the first demonstration up to the authors’ knowledge a wide field-of-view (FOV) and bidirectional UAV-assisted OWC system using optical-camera-based under-sampled phase shift on-off keying (UPS-OOK) format.

Unmanned-aerial-vehicle (UAV)-assisted optical-wireless-communication (OWC) systems offer several advantages, including data offloading, high flexibility, high mobility, and the ability to temporarily handle unexpected data surges during catastrophic situations. However, some cha…Read more

MIMO VLC System With Aggregated Angular Diversity Photoresistor Receivers for Misalignment Compensation

Jaeyeong Ha, Jaehyun Park, Yang Huang

TL;DR: This paper proposes a high-reliability MIMO VLC system architecture employing spatially separated receiver units, where each unit utilizes an analog-aggregated angular diversity receiver with a multi-directional photoresistor array, and introduces a current mirror-based analog pre-conditioning circuit.

Visible light communication (VLC) has emerged as a promising technology for next-generation wireless communication systems, particularly for indoor positioning and massive Internet of Things (IoT) networks, due to its immunity to electromagnetic interference and high directivity.…Read more