Results 61 to 70 of about 2,113 (128)

Stimuli‐Responsive Hydrogels for Optical Applications: Mechanisms, Architectures, and Translational Challenges

Aggregate, Volume 7, Issue 6, June 2026.
The review discusses stimuli‐responsive hydrogels as soft optical materials that translate physical, chemical, and biological cues into refractive‐index, scattering, birefringence, diffraction, and transparency changes. It examines major stimulus classes and photonic architectures for biosensing, waveguiding, adaptive lenses, smart windows, and therapy.
Andrés Bernal‐Ballén, Alexandr Dejneka, Oleg Lunov   +2 more
wiley   +1 more source

Terahertz microscopy using laser feedback interferometry based on a generalised phase-stepping algorithm

Scientific Reports
In this paper we report an improved method of coherent sensing through the use of a generalized phase-stepping algorithm to extract magnitude and phase information from interferometric fringes acquired by laser feedback interferometry (LFI). Our approach
Daniel Mohun, Nikollao Sulollari, Mohammed Salih, Lianhe H. Li, John E. Cunningham, Edmund H. Linfield, A. Giles Davies, Paul Dean   +7 more
doaj   +1 more source

Dynamic Sensing Performance of a Point-Wise Fiber Bragg Grating Displacement Measurement System Integrated in an Active Structural Control System

Sensors, 2011
In this work, a fiber Bragg grating (FBG) sensing system which can measure the transient response of out-of-plane point-wise displacement responses is set up on a smart cantilever beam and the feasibility of its use as a feedback sensor in an active ...
Chien-Ching Ma, Heng-Tseng Liao, Kuo-Chih Chuang   +2 more
doaj   +1 more source

Progress in Natural Products Target Discovery Technology

MedComm, Volume 7, Issue 6, June 2026.
Here, we provide a comprehensive overview of current technologies and recent advancements in therapeutic target discovery for natural products. By systematically synthesizing the principles, methodologies, and practical applications of existing experimental and computational strategies, this work provides a more actionable reference framework for ...
Qiyuan Pan, Xiao Yuan, Jinmei Jin, Xin Luan, Cheng Luo, Hongzhuan Chen, Weidong Zhang, Hao Zhang   +7 more
wiley   +1 more source

Microcantilever Displacement Measurement Using a Mechanically Modulated Optical Feedback Interferometer

Sensors, 2016
Microcantilever motion detection is a useful tool for the characterization of the physical, chemical and biological properties of materials. In the past, different approaches have been proposed and tested to enhance the behavior, size and simplicity of ...
Francisco J. Azcona, Ajit Jha, Carlos Yáñez, Reza Atashkhooei, Santiago Royo   +4 more
doaj   +1 more source

Deep Learning Enabled Ultrafast Optical Spectral Phase Retrieval via Unbalanced‐Intensity Autocorrelation

Nanophotonics, Volume 15, Issue 10, 27 May 2026.
Phase‐enabled nonlinear gating with unbalanced intensity (PENGUIN) enables reconstruction of the complete ultrafast optical field from one‐dimensional nonlinear interferometric autocorrelation traces. Combined with deep learning, the DeepPENGUIN framework enables real‐time spectral phase retrieval without spectrally resolved detection or iterative ...
Tae‐In Jeong, Eunji Choi, Mengkun Liu, Seungchul Kim, Alexander Gliserin   +4 more
wiley   +1 more source

Study of QCL Laser Sources for the Realization of Advanced Sensors

Sensors, 2015
We study the nonlinear dynamics of a quantum cascade laser (QCL) with a strong reinjection provided by the feedback from two external targets in a double cavity configuration.
Giuseppe de Risi, Lorenzo Luigi Columbo, Massimo Brambilla   +2 more
doaj   +1 more source

Lithium Niobate Quadratic Integrated Nonlinear Photonics: Enabling Ultra‐Wide Bandwidth and Ultrafast Photonic Engines

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian, Guanyu Han, Ziyao Feng, Yu Liu, Yu Wang, Wenjun Deng, Ayed Al Sayem, Qiushi Guo   +7 more
wiley   +1 more source

Concurrent Reflectance Confocal Microscopy and Laser Doppler Flowmetry to Improve Skin Cancer Imaging: A Monte Carlo Model and Experimental Validation

Sensors, 2016
Optical interrogation of suspicious skin lesions is standard care in the management of skin cancer worldwide. Morphological and functional markers of malignancy are often combined to improve expert human diagnostic power. We propose the evaluation of the
Alireza Mowla, Thomas Taimre, Yah Leng Lim, Karl Bertling, Stephen J. Wilson, Tarl W. Prow, H. Peter Soyer, Aleksandar D. Rakić   +7 more
doaj   +1 more source

Membrane-Mediated Conversion of Near-Infrared Amplitude Modulation into the Self-Mixing Signal of a Terahertz Quantum Cascade Laser

Photonics
A platform for converting near-infrared (NIR) laser power modulation into the self-mixing (SM) signal of a quantum cascade laser (QCL) operating at terahertz (THz) frequencies is introduced.
Paolo Vezio, Andrea Ottomaniello, Leonardo Vicarelli, Mohammed Salih, Lianhe Li, Edmund Linfield, Paul Dean, Virgilio Mattoli, Alessandro Pitanti, Alessandro Tredicucci   +9 more
doaj   +1 more source