Results 51 to 60 of about 2,111 (207)

Deep‐Tissue Light Generation via Whispering Gallery Mode Lasing From a Commercial Nylon Fiber for Biomedical Applications

open access: yesAdvanced Materials Technologies, Volume 11, Issue 19, 7 October 2026.
A dyed nylon fiber is implemented inside the scattering phantom and skin tissue. The deep‐tissue light generation via whispering gallery mode lasing is demonstrated, achieving a depth of >50 times transport mean free path in scattering phantom and 3 mm beneath skin.
Dongqin Ni   +4 more
wiley   +1 more source

Condensation of thresholds in multimode microlasers

open access: yesPhysical Review A, 2017
We show from ab initio laser theory that by choosing an appropriate spatial pump profile, many different spatial modes of a typical microlaser can be turned on at the same pump energy, substantially increasing the number, N, of simultaneous lasing modes.
Ge, Li, Cao, Hui, Stone, A. Douglas
openaire   +3 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, Volume 38, Issue 51, 11 September 2026.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Biological micro resonators for whispering gallery mode lasing via droplet drying techniques

open access: yesCommunications in Physics
In this study, we report the manufacturing and performance evaluation of biolasers based on the Whispering Gallery Mode (WGM) resonance effect, employing a solution composed of the natural protein bovine serum albumin (BSA) and the fluorescent dye ...
Hanh Mai Hong   +7 more
doaj   +1 more source

Single‐Nanoparticle Detection Using Quasi‐Bound States in the Continuum Supported by Silicon Metasurfaces

open access: yesSmall Methods, Volume 10, Issue 17, 9 September 2026.
This study demonstrates the detection of virus‐sized single polystyrene particles in water by leveraging the ultrahigh‐Q nature of low‐contrast bound states in the continuum (BIC) metasurfaces. The resonance properties of silicon BIC metasurfaces—wavelength, linewidth, and amplitude—all exhibit single‐particle sensitivity, representing a unique sensing
Keisuke Watanabe   +4 more
wiley   +1 more source

“Optochemistry”, when chemistry meets optics

open access: yesScience and Technology of Advanced Materials
In this review, we propose a term, ‘optochemistry’, a combination of optics and chemistry. In comparison with photochemistry that relates to photon aspect of light, optochemistry is a chemistry that relates to optics in which light is considered as wave ...
Yohei Yamamoto, Soh Kushida
doaj   +1 more source

Center of Excellence: Microlaser microscope. Annual progress technical report

open access: yes, 1993
This Center-of-Excellence grant has two components: Development of an imaging, system based on microlaser arrays forms a central project among a group of laser diagnostic and therapeutic efforts primarily funded outside the grant. In year 2 we have dealt
Webb, R. H.
core   +1 more source

Ultralow-threshold erbium-implanted toroidal microlaser on silicon [PDF]

open access: yes, 2004
We present an erbium-doped microlaser on silicon operating at a wavelength of 1.5 mum that operates at a launched pump threshold as low as 4.5 muW.
J. Kalkman   +14 more
core   +1 more source

On-chip ultra-narrow-linewidth single-mode microlaser on lithium niobate on insulator

open access: yes, 2021
We report an on-chip single mode microlaser with low-threshold fabricated on Erbium doped lithium niobate on insulator (LNOI). The single mode laser emission at 1550.5 nm wavelength is generated in a coupled photonic molecule, which is facilitated by ...
Youting Liang (14381601)   +9 more
core   +1 more source

Cavity mode manipulated by single gold nanoparticles

open access: yesAPL Photonics, 2020
The ability to manipulate microlaser performance is highly desirable so as to promote on-chip classical and quantum information-processing technology. Here, we demonstrate that mode manipulation of bottle microresonators is enabled by precise deposition ...
Yipeng Lun   +5 more
doaj   +1 more source

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