Results 61 to 70 of about 1,014 (194)

Dipole nanolaser

Physical Review A, 2005
A "dipole" laser is proposed consisting of a nanoparticle and a two-level system with population inversion. If the threshold conditions are fulfilled, the dipole interaction between the two-level system and the nanoparticle leads to coherent oscillations in the polarization of the particles, even in the absence of an external electromagnetic field. The
I. E. Protsenko, A. V. Uskov, O. A. Zaimidoroga, V. N. Samoilov, E. P. O’Reilly   +4 more
openaire   +3 more sources

Spaser as a biological probe

Nature Communications, 2017
Advanced diagnostic probes are required for monitoring disease progression. Here Galanzhaet al. demonstrate a 22 nm plasmonic nanolaser to serve as a super-bright, biocompatible probe capable of generating stimulated emission directly inside living cells
Ekaterina I. Galanzha, Robert Weingold, Dmitry A. Nedosekin, Mustafa Sarimollaoglu, Jacqueline Nolan, Walter Harrington, Alexander S. Kuchyanov, Roman G. Parkhomenko, Fumiya Watanabe, Zeid Nima, Alexandru S. Biris, Alexander I. Plekhanov, Mark I. Stockman, Vladimir P. Zharov   +13 more
doaj   +1 more source

Theory for bowtie plasmonic nanolasers

Optics Express, 2008
We develop a fundamental formulation for electrically-pumped plasmonic semiconductor nanolasers based on a metallic bowtie structure. Because of the negative dielectric constant of the metal at optical frequencies, the effective modal volume of the plasmonic mode can be compressed to the nanometer scale.
Shu-Wei, Chang, Chi-Yu Adrian, Ni, Shun-Lien, Chuang   +2 more
openaire   +2 more sources

Recent Developments in Deep‐Ultraviolet Flat Optics

Nanophotonics, Volume 15, Issue 10, 27 May 2026.
Deep‐ultraviolet flat optics (DUVFO) is emerging as a key platform for next‐generation photonics, enabling advanced functionalities beyond conventional DUV optics. This review outlines materials, devices, and system advances, highlighting wide‐bandgap platforms, while identifying key challenges in dispersion control, characterization, and wafer‐scale ...
Omar A. M. Abdelraouf, Tao Wang, Zeng Wang   +2 more
wiley   +1 more source

Electromagnetic analysis of the lasing thresholds of hybrid plasmon modes of a silver tube nanolaser with active core and active shell

Beilstein Journal of Nanotechnology, 2019
Results from the electromagnetic modeling of the threshold conditions of hybrid plasmon modes of a laser based on a silver nanotube with an active core and covered with an active shell are presented. We study the modes of such a nanolaser that have their
Denys M. Natarov, Trevor M. Benson, Alexander I. Nosich   +2 more
doaj   +1 more source

Harnessing Interfacial Field Localization in Hexagonal GaP Mie Resonators

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Сharacterization of Mie modes in self‐assembled GaP nanowires grown by MBE in vertical and horizontal configurations. The hexagonal cross‐section suppresses higher‐order modes while preserving dominant low‐order modes with spectral shifts. Simulations and dark‐field spectroscopy confirm the diameter‐dependent tunability.
Aleksandra A. Kutuzova, Alexey Kuznetsov, Valeriy M. Kondratev, Vladimir V. Fedorov, Ivan S. Mukhin, Aleksandr S. Slavich, Aleksey V. Arsenin, Alexey D. Bolshakov, Mikhail V. Rybin   +8 more
wiley   +1 more source

Beyond periodicity: tailoring Tamm resonances in plasmonic nanohole arrays for multimodal lasing

New Journal of Physics
Extraordinary optical transmission (EOT) through metal nanohole arrays (NHAs) and Tamm plasmon (TP) states have been investigated in plasmonic devices since 1998 and 2007, respectively.
Shadman Shahid, Muhammad Anisuzzaman Talukder   +1 more
doaj   +1 more source

Dynamics of Electrically Pumped Semiconductor Nano-Laser Arrays

Photonics, 2023
Semiconductor nano-lasers have been actively investigated both theoretically and experimentally with to the aim of providing a highly compact laser amenable to photonic integration.
Yuanlong Fan, K. Alan Shore, Xiaopeng Shao   +2 more
doaj   +1 more source

Arm‐Length‐Controlled CsPbBr3 Nanocrystals for Tunable Optical and Assembly Behavior

Advanced Materials, Volume 38, Issue 23, 22 April 2026.
In this work, the synthesis parameters that dictate the formation of armed CsPbBr3 nanocrystals are described, and routes enabling precise control over arm length are proposed. Direct links between morphology and optoelectronic behavior are established.
Irina Skvortsova, Sudipta Seth, Juliette Zito, Robin Girod, Bob Van Hout, Annick De Backer, Tom Stoops, Sergey Abakumov, Evgenii Vlasov, Tejmani Behera, Sandra Van Aert, Elke Debroye, Johan Hofkens, Sara Bals   +13 more
wiley   +1 more source

Plasmonic crystal defect nanolaser

Optics Express, 2011
Surface plasmons are widely interesting due to their ability to probe nanoscale dimensions. To create coherent plasmons, we demonstrate a nanolaser based on a plasmonic bandgap defect state inside a surface plasmonic crystal. A one-dimensional semiconductor-based plasmonic crystal is engineered to have stopbands in which surface plasmons are prohibited
Amit M, Lakhani, Myung-ki, Kim, Erwin K, Lau, Ming C, Wu   +3 more
openaire   +2 more sources