Results 31 to 40 of about 32,417 (310)

Bifurcation analysis of a semiconductor laser with filtered optical feedback

, 2006
We study the dynamics and bifurcations of a semiconductor laser with delayed filtered feedback, where a part of the output of the laser re-enters after spectral filtering.
Erzgraeber, H., Krauskopf, B., Erzgraeber, H, Lenstra, D., Bernd Krauskopf, H. Erzgraber, Lenstra, D, Erzgraber, H, Krauskopf, B, Daan Lenstra   +9 more
core   +1 more source

Geometrical scale-factor stabilization of square cavity ring laser gyroscopes [PDF]

, 2015
Large frame ring laser gyros performances are ultimately limited by the instabilities of their geometrical parameters. We present the experimental activity on the GP2 ring laser gyro.
Belfi, J., MACCIONI, ENRICO, E. Maccioni, R. Santagata, BEVERINI, NICOLO', A. Di Virgilio, J. Belfi, G. Carelli, Santagata, R., SIMONELLI, ANDREINO, N. Beverini, CARELLI, GIORGIO, A. Simonelli, Di Virgilio, A.   +13 more
core   +1 more source

Actively stabilized wavelength-insensitive carrier elimination from an electro-optically modulated laser beam

, 2012
We demonstrate a simple and robust technique for removal of the carrier wave from a phase-modulated laser beam, using a noninterferometric method that is insensitive to the modulation frequency and instead exploits the polarization dependence of electro ...
Freegarde, Tim, Cooper, Nathan, Dunning, Alexander, Bateman, James   +3 more
core   +1 more source

Advancing frequency locking: Modified FPGA-Guided direct modulation spectroscopy for laser stabilization

, 2023
<p>In this paper, we propose a cost-effective laser frequency locking scheme based on frequency modulation spectroscopy (FMS) for precision measurements and experiments in various fields.
Yadav, Hemant, Tirupathi, Rakesh, Kamalkant, -, Majumder, Prosenjit, Ghosh, Arnab, Deo, Apoorav Singh, Singh, Deepshikha, Jain, Shruti, Yadav, Poonam   +8 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

A Novel Frequency Stabilization Method for External Cavity Diode Lasers Based on PZT Modulation

IEEE Photonics Journal
The method of frequency stabilization using injection current modulation can cause mode hopping in the laser. It also fails to fully utilize the benefits of PZT modulation for narrowing the laser linewidth.
Rui Xu, Fangjun Qin, Zhichao Ding, An Li
doaj   +1 more source

Long-Term Absolute Frequency Stabilization of a Hybrid-Integrated InP-Si₃N₄ Diode Laser

IEEE Photonics Journal, 2023
Hybrid integrated diode lasers based on combining semiconductor optical amplifiers with low-loss Si$_{3}$N$_{4}$-based feedback circuits enable great laser performance for advanced photonic circuits.
Albert van Rees, Lisa V. Winkler, Pierre Brochard, Dimitri Geskus, Peter J. M. van der Slot, Christian Nolleke, Klaus-J. Boller   +6 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +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

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

Molecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska, Stephany Gallardo, Nur S. Zainal, Leena Arora, Matthew Ellis, Maria‐Antoinette Lopez, Judith Austine, Sai Pittla, Serena J Chee, Aiman Alzetani, Emily C Shaw, Christian H Ottensmeier, Gareth J Thomas, Christopher J Hanley   +13 more
wiley   +1 more source