Results 101 to 110 of about 7,801 (299)

Robust, frequency-stable and accurate mid-IR laser spectrometer based on frequency comb metrology of quantum cascade lasers up-converted in orientation-patterned GaAs

open access: yes, 2013
We demonstrate a robust and simple method for measurement, stabilization and tuning of the frequency of cw mid-infrared (MIR) lasers, in particular of quantum cascade lasers.
Ernsting, Ingo   +6 more
core   +1 more source

Therapeutic Gases in Biomedicine: Updates on Nitric Oxide and Beyond

open access: yesAdvanced Science, EarlyView.
Therapeutic gases, including NO, CO, H2S, H2, CO2, O2, and Xe, play vital roles in cellular signaling and repair. This review highlights the emerging carriers and delivery systems that enable controlled, localized gas release for diagnostic and therapeutic applications.
Syed Muntazir Andrabi   +4 more
wiley   +1 more source

Preoperative Skin Conditioning: Extracellular Matrix Clearance and Skin Bed Preparation, A New Paradigm. [PDF]

open access: yes, 2019
This paper introduces the concept of "skin bed preparation" prior to surgical procedures. Following the theory of chronic wound bed preparation and adapting the skin model to one of chronic wound changes related to extrinsic and intrinsic factors, a ...
Cohen, Steven R   +2 more
core  

Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings

open access: yesAdvanced Science, EarlyView.
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini   +5 more
wiley   +1 more source

All-Optical Actively Mode-Locked Fiber Laser at 2-μm Based on Interband Modulation

open access: yesIEEE Photonics Journal, 2017
In this paper, we have achieved a high repetition rate and tunable pulse generation near ∼2 μm through an all-optical actively mode-locked fiber laser. The performances of the fiber laser have been systematically investigated through
Xu Wu   +5 more
doaj   +1 more source

Development of Nano-engineered Thulium-doped Fiber Laser With Low Threshold Pump Power and Tunable Operating Wavelength [PDF]

open access: gold, 2015
Mukul Chandra Paul   +5 more
openalex   +1 more source

Laser Cooled High-Power Fiber Amplifier

open access: yes, 2009
A theoretical model for laser cooled continuous-wave fiber amplifier is presented. The amplification process takes place in the Tm3+-doped core of the fluoride ZBLAN (ZrF4-BaF2-LaF3-AlF3-NaF) glass fiber. The cooling process takes place in the Yb3+:ZBLAN
Nemova, Galina
core  

2-.mu.m fiber amplified spontaneous emission (ASE) source [PDF]

open access: yes, 2007
A 2-.mu.m fiber Amplified Spontaneous Emission (ASE) source provides a wide emission bandwidth and improved spectral stability/purity for a given output power.
Geng, Jihong   +2 more
core   +1 more source

Spectroscopic investigations of a Ti:Tm:LiNbO3 waveguide for photon-echo quantum memory

open access: yes, 2009
We report the fabrication and characterization of a Ti$^{4+}$:Tm$^{3+}$:LiNbO$_3$ optical waveguide in view of photon-echo quantum memory applications.
A Moiseev   +74 more
core   +1 more source

Soft Robotics and Advanced Technologies for Minimally Invasive Bioprinting: The Future of Internal Organ Repair

open access: yesAdvanced Science, EarlyView.
This review examines the evolution of bioprinting toward minimally invasive in situ strategies for internal organ regeneration. It defines the technological roadmap from handheld systems to advanced minimally invasive bioprinting platforms, positioning soft robotics as a core enabler.
Duc Tu Vu   +9 more
wiley   +1 more source

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