Results 51 to 60 of about 3,145,730 (353)

High-precision and fast-response laser power stabilization system for cold atom experiments

AIP Advances, 2018
An innovative and practical scheme of building laser power stabilization system is proposed by using external-control method. A high-speed Field Programmable Gate Array (FPGA) is used as real-time controller, which makes the closed-loop control period of
Qi-Xue Li, Shu-Hua Yan, Enlong Wang, Xu Zhang, Huankai Zhang   +4 more
doaj   +1 more source

Photonic chip for laser stabilization to an atomic vapor with 10 −11 instability

, 2018
Devices based on spectroscopy of atomic vapors can measure physical quantities such as magnetic fields, RF electric fields, time and length, and rotation and have applications in a broad range of fields including communications, medicine, and navigation.
M. Hummon, Songbai Kang, D. Bopp, Qing Li, D. Westly, Sangsik Kim, C. Fredrick, S. Diddams, K. Srinivasan, Vladimir Aksyuk, J. Kitching   +10 more
semanticscholar   +1 more source

Power stabilization of a diode laser with an acousto-optic modulator. [PDF]

Review of Scientific Instruments, 2018
Laser power fluctuations can significantly reduce the device performances in various applications. High frequency fluctuations impact the signal-to-noise ratio, while slow variations can reduce the device repeatability or accuracy.
F. Tricot, D. Phung, M. Lours, S. Guérandel, E. Clercq   +4 more
semanticscholar   +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

Algorithm based comparison between the integral method and harmonic analysis of the timing jitter of diode-based and solid-state pulsed laser sources

, 2015
A comparison between two methods of timing jitter calculation is presented. The integral method utilizes spectral area of the single side-band (SSB) phase noise spectrum to calculate root mean square (rms) timing jitter. In contrast the harmonic analysis
Edwards, T. J., Su, C.-R., Brown, C. T A, Su, C. R., Edwards, T.J., Metzger, N. K., Brown, C.T.A., Metzger, N.K.   +7 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

Compact Diode-Pumped Solid-State Laser with Intracavity Pump-Enhanced DFG Emitting at ~3.5 Microns

Photonics, 2023
We report a diode-pumped solid-state (DPSS) laser used for intracavity pump-enhanced difference frequency generation (DFG) to create a 3.5-micron laser. Using a 50 mm-long periodically poled lithium niobate (PPLN) crystal inside the cavity of an Nd:YVO4 ...
Liam G. K. Flannigan, Ali Atwi, Tyler Kashak, Daniel Poitras, Chang-Qing Xu   +4 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

Semiconductor laser chip stabilization by Si3N4 microresonator and Kerr comb generation

, 2018
The experimental study of the InPlaser diode stabilization by high-Q Si3N4 microresonator is presented. We demonstrate how this stabilized laser diode considered as a pump laser may be used for optical frequency comb generation in the same microresonator.
A. Shitikov, Gorodnitskiy, A., Pfeiffer, M., Voloshin, A., M. Gorodetsky, T. Kippenberg, Agafonova, S., A. Voloshin, M. Pfeiffer, Gorodetsky, M., S. Agafonova, Shitikov, A., Kippenberg, T., A. Gorodnitskiy   +13 more
core   +1 more source