Results 31 to 40 of about 20,256 (255)

PT-symmetric mode-locking [PDF]

Optics Letters, 2016
Parity-time (PT) symmetry is one of the most important accomplishments in optics over the past decade. Here the concept of PT mode-locking (ML) of a laser is introduced, in which active phase-locking of cavity axial modes is realized by asymmetric mode coupling in a complex time crystal. PT ML shows a transition from single- to double-pulse emission as
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Switchable Dual-Comb Fiber Laser Based on Sagnac Loop for Wavelength-Multiplexing and Polarization-Multiplexing

Photonics
We present an all-fiber erbium-doped mode-locked laser capable of switching among continuously tunable single-pulse mode-locking, wavelength-multiplexing asynchronous-pulse mode-locking, and polarization-multiplexing asynchronous-pulse mode-locking ...
Qianyu Yao, Lilin Luo, Yue Cai, Yongguo Zheng, Xinhai Zhang   +4 more
doaj   +1 more source

Mode-Locked Operation of High-Order Transverse Modes in a Vertical-External-Cavity Surface-Emitting Laser

Sensors
Understanding the mechanism of mode-locking in a laser with high-order transverse mode is important for achieving an ultrashort pulses train under more complicated conditions.
Tao Wang, Yunjie Liu, Renjiang Zhu, Lidan Jiang, Huanyu Lu, Yanrong Song, Peng Zhang   +6 more
doaj   +1 more source

FM Mode-Locking Fiber Laser [PDF]

Engineering and Technology Journal, 2008
In this paper the study of Frequency Modulation Harmonic Mode-locking forYtterbium Doped Fiber Laser is presented. The model studied, uses ytterbium-doped,single mode fiber pumped by 976 nm laser source is used with 150 mW pumpingpower to produce 1055 nm
Inmar N. Ghazi, Waleed Y. Hussein, Salam Sami M. Salih   +2 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

Failure pattern and evolution mechanism of locking section in rock slope with three-section landslide mode

Yantu gongcheng xuebao, 2018
The geological structure and mechanical properties of locking section are the key control factors to the rock slope with three-section landslide mode. According to the characteristics of the geological structure of three-section landslide, physical model
HUANG Da 1, 2, ZHANG Xiao-jing 1, GU Dong-ming 1
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Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

Molecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni, Antonella Palmese, Stefano Scalera, Laura Cipriani, Davide Mascolo, Patrizia Vici, Teresa Arcuri, Lorena Filomeno, Eriseld Krasniqi, Giovanni Blandino, Giulia Bon, Marcello Maugeri‐Saccà   +11 more
wiley   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

Dispersion-Managed Tm-Ho Co-Doped Ultrashort Pulse Fiber Laser Using Single-Walled Carbon Nanotube and Spectral Filter

Applied Sciences, 2022
In this paper, we have demonstrated a dispersion-managed, high-power, Tm-Ho co-doped ultrashort pulse fiber laser using a single walled carbon nanotube (SWNT) dispersed in polyimide film.
Keisuke Fukazawa, Ying Zhou, Shotaro Kitajima, Takeshi Saito, Youichi Sakakibara, Norihiko Nishizawa   +5 more
doaj   +1 more source

A Mode Locking Theory of the Nyquist Laser

Conference on Lasers and Electro-Optics, 2016
We derive a master equation for a mode-locked Nyquist laser that can emit a sinc function pulse. To derive the master equation, we used a method involving exponential perturbative expressions for gain, loss, and amplitude modulation, and a flat-top optical filter with edge enhancement.
Masataka, Nakazawa, Toshihiko, Hirooka
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