Results 61 to 70 of about 131,114 (210)

The frequency-dependent directivity of a planar Fabry-Perot polymer film ultrasound sensor [PDF]

, 2007
A model of the frequency-dependent directivity of a planar, optically-addressed, Fabry-Perot (FP), polymer film ultrasound sensor is described and validated against experimental directivity measurements made over a frequency range of 1 to 15 MHz and ...
Beard, PC, Cox, BT
core  

Femtosecond Laser Introduced Cantilever Beam on Optical Fiber for Vibration Sensing

Sensors
An all-fiber vibration sensor based on the Fabry-Perot interferometer (FPI) is proposed and experimentally evaluated in this study. The sensor is fabricated by introducing a Fabry-Perot cavity to the single-mode fiber using femtosecond laser ablation ...
Jin Qiu, Zijie Wang, Zhihong Ke, Tianlong Tao, Shuhui Liu, Quanrong Deng, Wei Huang, Weijun Tong   +7 more
doaj   +1 more source

Brillouin–Raman micro‐mapping of silicone‐hydrogel contact lenses: Revealing chemical and mechanical heterogeneities

Journal of Microscopy, EarlyView.
Abstract Joint Brillouin–Raman micro‐spectroscopy (BRMS) enables simultaneous, non‐destructive characterisation of the mechanical and chemical properties of soft materials at the micrometre scale, combining GHz‐range viscoelastic information from acoustic modes with the vibrational fingerprint of molecular species.
Alessandra Anna Passeri, Martina Alunni Cardinali, Erika Ponzini, Silvia Tavazzi, Daniele Fioretto   +4 more
wiley   +1 more source

Fabry-Perot interferometer using curved plates

, 2000
Fabry-Perot interferometer with curved plates is described. It is found that the partially reflecting surfaces of the Fabry-Perot interferometer need not be necessarily flat.
Udupa, D. V., Shukla, R. P., Mantravadi, M. V., D.V Udupa, M.V Mantravadi, R.P Shukla   +5 more
core   +1 more source

Artefact‐aware Brillouin microscopy framework for root mechanical phenotyping

Journal of Microscopy, EarlyView.
Abstract Plant roots continuously sense and respond to the mechanical signals of their growth environment: root cap function, mucilage secretion, and hormonal regulation jointly adapt root tip mechanics, shaping whether roots penetrate compacted layers or reorient around obstacles. Most current measurements of root mechanical properties require removal
Timm Landes, Ole Christian Hammerschmidt, Leon Pascal Wallentin, Ghulam Naseer Ud Din, Jacob Morsbach, Luis Alonso Baez, Dag Heinemann   +6 more
wiley   +1 more source

Enhancing Microwave Photonic Interrogation Accuracy for Fiber-Optic Temperature Sensors via Artificial Neural Network Integration

Optics
In this paper, an application of an artificial neural network algorithm is proposed to enhance the accuracy of temperature measurement using a fiber-optic sensor based on a Fabry–Perot interferometer (FPI). It is assumed that the interrogation of the FPI
Roman Makarov, Mohammed R. T. M. Qaid, Alaa N. Al Hussein, Bulat Valeev, Timur Agliullin, Vladimir Anfinogentov, Airat Sakhabutdinov   +6 more
doaj   +1 more source

Levitated optomechanics with a fiber Fabry–Perot interferometer

New Journal of Physics, 2018
In recent years, quantum phenomena have been experimentally demonstrated on variety of optomechanical systems ranging from micro-oscillators to photonic crystals.
A Pontin, L S Mourounas, A A Geraci, P F Barker   +3 more
doaj   +1 more source

Multiscale mechanical analysis of live breast cancer spheroids by micro‐compression and Brillouin imaging

Journal of Microscopy, EarlyView.
Abstract Recent developments in cancer mechanobiology have highlighted the importance of tumour mechanics as a potential marker of disease progression. Three‐dimensional tumour models provide simplified yet physiological relevance exhibiting mechanical heterogeneity.
Ashutosh Khaswal, Hadi Mahmodi, Ellie Mok, Thomas R. Cox, Irina Kabakova   +4 more
wiley   +1 more source

On‐Chip Photonic Neural Network Architectures

Advanced Optical Materials, Volume 14, Issue 39, 23 October 2026.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong, Berkay Neseli, Seungyeon Cho, Seungsoo Lee, Yeonjun Kim, Seungyoon Choi, Hyo‐Hoon Park, Hamza Kurt   +7 more
wiley   +1 more source

Efficient Polarization‐Entangled Photon‐Pair Generation by a Fiber‐In‐Line van der Waals Material

Advanced Science, Volume 13, Issue 57, 14 October 2026.
Telecom‐wavelength polarization‐entangled photon pairs are generated in a van der Waals‐material‐integrated all‐fiber device via spontaneous parametric down‐conversion. The demonstrated fiberized quantum light source bridges emerging 2D nonlinear materials and practical quantum photonic systems, opening new opportunities for scalable fiber‐based ...
Jungseok Choi, Seongju Ha, Seungjae Lim, Joohyeon Ahn, Jaekyoung Kim, Jong Hyuk Yim, Nam Hun Park, Youngdong Yoo, Jae‐Ung Lee, Hee Su Park, Sang Min Lee, Dong‐Il Yeom   +11 more
wiley   +1 more source