Results 1 to 10 of about 1,107 (175)

Determination of Enantiomeric Excess by Optofluidic Microlaser near Exceptional Point [PDF]

open access: yesAdvanced Science
Enantiomeric excess (ee) is an essential indicator of chiral drug purification in the pharmaceutical industry. However, to date the ee determination of unknown concentration enantiomers generally involves two separate techniques for chirality and ...
Zhiyang Xu   +2 more
exaly   +3 more sources

Deformable microlaser force sensing [PDF]

open access: yesLight: Science & Applications
Mechanical forces are key regulators of cellular behavior and function, affecting many fundamental biological processes such as cell migration, embryogenesis, immunological responses, and pathological states.
Eleni Dalaka   +6 more
doaj   +6 more sources

Electrically driven single microwire-based single-mode microlaser [PDF]

open access: yesLight: Science & Applications, 2022
An electrically driven single-mode microlaser, containing a lasing peak at 390.5 nm, a narrow FWHM ~ 0.18 nm, and Q-factor ~ 2169, was proposed and demonstrated.
Xiangbo Zhou   +7 more
doaj   +2 more sources

Visible Brillouin-quadratic microlaser in a high-Q thin-film lithium niobate microdisk [PDF]

open access: yesNature Communications
Narrow-linewidth lasers at short/visible wavelengths are crucial for quantum and atomic applications. However, such lasers are often accessible in bulky tabletop systems and remain scarce in on-chip photonic platforms.
Xiaochao Luo   +10 more
doaj   +2 more sources

Online spike-based recognition of digits with ultrafast microlaser neurons [PDF]

open access: yesFrontiers in Computational Neuroscience, 2023
Classification and recognition tasks performed on photonic hardware-based neural networks often require at least one offline computational step, such as in the increasingly popular reservoir computing paradigm.
Amir Masominia   +3 more
doaj   +2 more sources

Modal Properties of Photonic Crystal Cavities and Applications to Lasers

open access: yesNanomaterials, 2021
Photonic crystal cavities enable strong light–matter interactions, with numerous applications, such as ultra-small and energy-efficient semiconductor lasers, enhanced nonlinearities and single-photon sources.
Marco Saldutti   +5 more
doaj   +1 more source

“Amplified Spontaneous Emission” in Micro- and Nanolasers

open access: yesAtoms, 2021
Amplified Spontaneous Emission is ubiquitous in systems with optical gain and is responsible for many opportunities and shortcomings. Its role in the progression from the simplest form of thermal radiation (single emitter spontaneous emission) all the ...
Gian Luca Lippi
doaj   +1 more source

Numerical analysis of a single-mode microring resonator on a YAG-on-insulator

open access: yesOpen Physics, 2021
A numerical analysis of a compact microring resonator that was defined on a yttrium-aluminum-garnet (YAG) thin film bonded on top of a SiO2 cladding layer and operated at the wavelengths of approximately 1.064 and 1.6 μm was performed.
Lu Shijia   +8 more
doaj   +1 more source

Monitoring Various Bioactivities at the Molecular, Cellular, Tissue, and Organism Levels via Biological Lasers

open access: yesSensors, 2022
The laser is considered one of the greatest inventions of the 20th century. Biolasers employ high signal-to-noise ratio lasing emission rather than regular fluorescence as the sensing signal, directional out-coupling of lasing and excellent ...
Hongrui Shan, Hailang Dai, Xianfeng Chen
doaj   +1 more source

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