Low-Threshold Continuous-Wave Anti-Stokes Raman Lasing in Silicon Racetrack Resonators

ACS Photonics ◽  
2021 ◽  
Author(s):  
Yaojing Zhang ◽  
Keyi Zhong ◽  
Wen Zhou ◽  
Hon Ki Tsang
Keyword(s):  
Continuous Wave ◽  
Low Threshold ◽  
Raman Lasing ◽  
Anti Stokes

scholarly journals Dynamic upconversion multicolour editing enabled by molecule-assisted opto-electrochemical modulation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yiming Wu ◽  
Jiahui Xu ◽  
Xian Qin ◽  
Jun Xu ◽  
Xiaogang Liu
Keyword(s):  
Optical Pumping ◽  
Logic Gate ◽  
Energy Levels ◽  
Upconversion Emission ◽  
Orbital Energy ◽  
Optical Signals ◽  
Precise Control ◽  
Technological Developments ◽  
Low Threshold ◽  
Anti Stokes

AbstractControlling nonlinear optical signals electrically offers many opportunities for technological developments. Lanthanide-activated nanoparticles have recently emerged as leading platforms for nonlinear upconversion of infra-red excitation within nanometric volumes. However, manipulation of upconversion emission is restricted to varying percentages of component materials, nanocrystal structure, and optical pumping conditions. Here, we report temporal modulation of anti-Stokes luminescence by coupling upconversion nanoparticles with an electrochemically responsive molecule. By electrically tailoring orbital energy levels of the molecules anchored on nanoparticle surfaces, we demonstrate reversible control of molecular absorption, resulting in dynamic colour editing of anti-Stokes luminescence at single-particle resolution. Moreover, we show that a programmable logic gate array based on opto-electrochemical modulation can be constructed to convert information-encrypted electrical signals into visible patterns with millisecond photonic readout. These findings offer insights into precise control of anti-Stokes luminescence, while enabling a host of applications from low-threshold infrared logic switches to multichannel, high-fidelity photonic circuits.

scholarly journals Room-temperature continuous-wave upconverting micro- and nanolasing for bio-optofluidics

2020 ◽  
Vol 238 ◽  
pp. 07005
Author(s):  
Angel Fernandez-Bravo ◽  
Liliana Moscardi ◽  
Aaron M. Ross ◽  
Guglielmo Lanzani ◽  
Emory M. Chan ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Biomedical Imaging ◽  
Large Scale ◽  
Room Temperature ◽  
Continuous Wave ◽  
Optoelectronic Devices ◽  
Pulsed Excitation ◽  
Cavity Loss ◽  
Low Threshold ◽  
Quantum Photonics

Nanolasers that operate under the continuous-wave pump and are robust in diverse environments will make possible compact optoelectronic devices, biomedical imaging, and large-scale quantum photonics. However, current nanolasers require low temperatures or pulsed excitation because their small mode volumes severely limit gain relative to cavity loss. Here, I will present continuous-wave upconverting micro- and nanolasing at room temperature with record-low thresholds and high photostability. I will explore the future implications of such a low-threshold laser for optofluidics.

Continuous-Wave Raman Lasing in Silicon Ring Resonator with Sub-Milliwatt Pump Threshold

2019 ◽  
Author(s):  
Yaojing Zhang ◽  
Wen Zhou ◽  
Dan Yi ◽  
Yeyu Tong ◽  
Yi Wang ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Continuous Wave ◽  
Raman Lasing

Low-threshold continuous-wave two-stack quantum-dot laser with reduced temperature sensitivity

2000 ◽  
Vol 12 (9) ◽  
pp. 1120-1122 ◽  
Author(s):  
O.B. Shchekin ◽  
G. Park ◽  
D.L. Huffaker ◽  
Q. Mo ◽  
D.G. Deppe
Keyword(s):  
Quantum Dot ◽  
Temperature Sensitivity ◽  
Continuous Wave ◽  
Quantum Dot Laser ◽  
Low Threshold ◽  
Reduced Temperature
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