Results 91 to 100 of about 3,938 (218)

Characterization and Repetition Rate Locking of a 1 GHz Erbium‐Doped ZBLAN Waveguide‐Chip Comb Laser

Laser &Photonics Reviews, EarlyView.
A compact, erbium‐doped ZBLAN waveguide chip mode‐locked laser that self‐starts, delivers stable ultrashort pulses, and repetition rate locked to a 1 GHz radio‐frequency reference. The laser produces near transform‐limited 324 fs pulses and 12 nm bandwidth with low noise and long‐term stability, with potential applications in optical frequency ...
Wen Qi Zhang, Nicolas Bourbeau Hébert, Dale E. Otten, Colin Hall, David G. Lancaster   +4 more
wiley   +1 more source

Effect of Anterior Corneal Surface Asphericity Modification on Fourth-Order Zernike Spherical Aberrations

, 2014
International audiencePURPOSE To evaluate the theoretical influence of the change in corneal asphericity (Delta Q) on the change in fourth-order Zernike spherical aberration coefficient (Delta C-0(4)) with customized aspheric refractive correction of ...
Malet, Jacques, Damien Gatinel, Laurent Dumas, Dumas, Laurent, Dimitri T. Azar, Gatinel, Damien, Azar, Dimitri T., Jacques Malet   +7 more
core   +1 more source

Noise Suppression via Gain‐Dispersion‐Managed Nonlinear Amplification in a High‐Power Er‐Fiber Laser

Laser &Photonics Reviews, EarlyView.
Gain‐dispersion‐managed nonlinear pre‐amplification simultaneously suppresses phase and intensity noise, enabling scalable high‐power fiber amplification. The system delivers 102.3 W linearly polarized pulses with 1.19 µJ energy at 85.69 MHz and compresses them to 380 fs. Near‐linear power scaling without evident saturation highlights a practical route
Mei Yang, Yuan Chen, Tingting Liu, Zhuoren Wan, Yan Dai, Suyang Xu, Zhengru Guo, Kun Huang, Ming Yan, Heping Zeng   +9 more
wiley   +1 more source

Advancing Artificial Intelligence in Myopia Management: From Predicting Progression to Supporting Clinical Decisions

Med Research, EarlyView.
The AI‐enabled multimodal framework for whole‐life myopia management. Graphical abstract illustrates the transition of myopia care from premyopia to myopia, high myopia, and pathologic myopia. Multimodal data, including demographic and refractive information, genetic, behavioral and environmental factors, ophthalmic imaging, and omics profiles, can be ...
Zewei Zhang, Yun Wang, Lifei Zhang, Dongmei Chen, Weijie Zhang, Fang Li, Jibo Zhou   +6 more
wiley   +1 more source

Verification of conicoidal concave surfaces by keratometry

Journal of Optometry, 2010
Purpose: To investigate the possibility of using a keratometer to check the specification of the conicoidal back surface of rigid contact lenses. Methods: A conicoidal surface can be described by quoting two parameters.
William A. Douthwaite, Edward A.H. Mallen   +1 more
doaj   +1 more source

Integration of Refractive Microlenses on BP/MoS2 Photodiodes for Enhanced Infrared Photodetection

Small, EarlyView.
This study demonstrates the successful integration of black phosphorus/molybdenum disulfide infrared photodetectors with refractive microlenses to significantly enhance detection. The design achieves a 20‐fold photocurrent enhancement, enabling a room‐temperature detectivity of 1.83 × 109 cmHz1/2W−1, and demonstrates high‐resolution (1023 × 768) single‐
Varsha Ashwin Vedaraj, Daniel Fan, Jinyuan Chen, Seyed Saleh Mousavi Khaleghi, Luke Philpott, Yuchen Sun, Shifan Wang, Shi Tang, Robert Delaney, Alexander Corletto, Kenneth B. Crozier, James Bullock   +11 more
wiley   +1 more source

Linear regression analysis showing changes in asphericity for 8-mm corneal diameter (Corneal Wavefront).

, 2017
Linear regression analysis showing changes in asphericity for 8-mm corneal diameter (Corneal Wavefront).
Mihyun Choi (3740515), Jee Hye Lee (3364217), Geunyoung Yoon (3740524), Choun-Ki Joo (424803), Ying-Jun Li (3740518), Woong-Joo Whang (3740527), JunJie Piao (3740512), Min Ji Kang (3740521)   +7 more
core   +1 more source

Determination of inter-individual differences in humeral head centre translations in subjects with healthy shouldersDetermination of inter-individual differences in humeral head centre translations in subjects with healthy shoulders [PDF]

Royal Society Open Science
The aims of this study were to (i) quantify glenohumeral (GH) joint translations in healthy shoulders, (ii) assess subject-specific variability in GH translations, (iii) determine whether bony joint geometry (glenoid height, width, retroversion ...
Eva C. Herbst, Heath B. Henninger, Flavia Stettler, Maximilian Modelhart, Matteo Tanadini, Stephen J. Ferguson, Philipp Moroder   +6 more
doaj   +1 more source

Premium Intraocular Lens Selection in Patients With Glaucoma: A Clinical Review

Clinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Glaucoma frequently coexists with cataract, but glaucomatous functional loss, ocular‐surface disease, anatomical abnormalities, and treatment‐related refractive variability may reduce tolerance of premium intraocular lenses. This narrative review critically appraises evidence relevant to lens selection in glaucoma. Central visual‐field status,
Zhihao Liu, Yajuan Zheng, Mingxuan Wang, Jing Zhao   +3 more
wiley   +1 more source

Limbal cystotomy by fine needle aspiration of a translucent iris cyst in a horse

Equine Veterinary Education, Volume 38, Issue 11, Page e784-e789, November 2026.
Summary A 4‐year‐old Cremello crossbred mare was referred to the Equine Veterinary Teaching Hospital of Utrecht University for a translucent iris cyst from the dorsal pupillary margin corpora nigra in the right eye. Although noninvasive diode laser treatment is the preferred method of pigmented cyst ablation, two attempts did not result in disruption ...
A. L. Hendrikx, S. Veraa, J. P. A. M. van Loon, H. Hermans, I. J. M. Slenter, E. M. S. Visser   +5 more
wiley   +1 more source