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Different Types of Lasers
The birth of lasers in 1960 has led to an unprecedented proliferation of research activity across the globe aimed at amplifying light in a wide...
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The Halide Perovskite Gain Media
Perovskites rose to fame due to its rapid improvements in solar-cell conversion efficiencies, starting from 3.8% (in 2009) to 22.1% (in 2014) and...
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Laser Principles
Despite their great variety and range of size, power, wavelength, and temporal, spatial, and polarization characteristics, all lasers involve certain...
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Lasing in dye-infiltrated nanoporous anodic alumina membranes
Laser emission is obtained from a slab of nanoporous anodic alumina on an aluminum sheet, infiltrated by rhodamine 6G dye in methanol and pumped by...
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Terawatt-scale attosecond X-ray pulses from a cascaded superradiant free-electron laser
Intense attosecond X-ray pulses are key for ultrafast nonlinear spectroscopy and diffractive imaging. Here we demonstrate the generation of...
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UV Luminescence and Lasing in Ensembles of Zinc-Oxide Microcrystals with Copper
AbstractMicrorod arrays of zinc oxide with copper have been grown by chemical vapor deposition on single-crystal sapphire substrates preliminarily...
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Complex skin modes in non-Hermitian coupled laser arrays
From biological ecosystems to spin glasses, connectivity plays a crucial role in determining the function, dynamics, and resiliency of a network. In...
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Harnessing a multi-dimensional fibre laser using genetic wavefront sha**
The multi-dimensional laser is a fascinating platform not only for the discovery and understanding of new higher-dimensional coherent lightwaves but...
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Polariton Resonance in the Self-Modulation of the Asymmetric State of a Superradiant Laser
AbstractBased on the numerical solution to the semiclassical Maxwell–Bloch equations in a one-dimensional model of a superradiant laser with a low- Q ...
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Deformable microlaser force sensing
Mechanical forces are key regulators of cellular behavior and function, affecting many fundamental biological processes such as cell migration,...
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Optical Transceivers
Since the development of the first semiconductor laser in the 1960s, much R&D effort has been concentrated on designing and develo** optical...
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Fully on-chip photonic turnkey quantum source for entangled qubit/qudit state generation
Integrated photonics has recently become a leading platform for the realization and processing of optical entangled quantum states in compact, robust...
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Observation of stationary spontaneous Hawking radiation and the time evolution of an analogue black hole
The emission of Hawking radiation from a black hole was predicted to be stationary, which is necessary for the correspondence between Hawking...
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High-average-power 216 MHz Kerr lens mode-locked Yb:KGW ring laser oscillator for application to laser spectroscopy
We report the development of a ring Yb:KGW laser oscillator with an average power of 4.22 W, a pulse duration of 312 fs at a repetition rate of 216...
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Cascaded C+L-band tunable erbium-doped fiber lasers for simultaneous generation of continuous wave and mode-locked pulses
Simultaneous generation of continuous wave (CW) laser and mode-locked pulses employing fiber lasers has not been realized so far to the best of our...
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Coherent control of ultrafast extreme ultraviolet transient absorption
Ultrafast extreme ultraviolet (XUV) transient absorption is the process by which atoms and molecules absorb light on a timescale faster than the...
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Nanoscale map** of optically inaccessible bound-states-in-the-continuum
Bound-states-in-the-continuum (BIC) is an emerging concept in nanophotonics with potential impact in applications, such as hyperspectral imaging,...
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Carrier Recombination and Noise
In steady state, for each act of carrier generation or excitation there must be one inverse process of recombination or relaxation. Carriers can...
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Optimization for full optical chaotic synchronization by hybrid feedback and injection
A novel secure optical communication system is investigated in this experimental work. The scheme is based on dynamical chaotic encryption, i.e.,...
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Spectroscopic Techniques: Lasers
As a primary research tool, the laser plays a fundamental role in the spectroscopic study of atomic and molecular systems. This Chapter describes the...