Results 171 to 180 of about 644,059 (323)

Programmable Wide‐Spectrum Complex Microcavity Laser Controlled by Liquid Crystal Elastomer Braking Mechanism

open access: yesAdvanced Photonics Research, EarlyView.
A nematic liquid crystal elastomer (LCE) exhibiting dynamic laser oscillation behavior modulated by mechanical stretching and contraction is synthesized. This study investigates the influence of liquid crystal elastomer deformation characteristics on multidimensional complex microcavity laser systems.
Hongyang Zhu   +4 more
wiley   +1 more source

Wavefront control in space with MEMS deformable mirrors for exoplanet direct imaging [PDF]

open access: green, 2013
Kerri Cahoy   +7 more
openalex   +1 more source

Strong Coupling‐Induced Topological Edge‐State Laser in 1D High‐Contrast Grating

open access: yesAdvanced Photonics Research, EarlyView.
This study manipulates lattice constants and filling factors in 1D high‐contrast gratings to induce strong and weak coupling, enabling topological and trivial states. Demonstrating topological edge‐state lasers with improved robustness, lower thresholds, and narrower linewidths, the design supports novel topological laser cavity advancements ...
Hsu‐Chun Hu   +3 more
wiley   +1 more source

Validation of a new adaptive deformable mirror concept

open access: green, 2008
Roger Hamelinck   +5 more
openalex   +2 more sources

Optical Chaos Generation and Applications

open access: yesAdvanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen   +8 more
wiley   +1 more source

Performance of a thermally deformable mirror for correction of low-order aberrations in laser beams [PDF]

open access: green, 2013
M. Kasprzack   +7 more
openalex   +1 more source

Q‐Switched Mode‐Locking in Er‐Doped ZrF4‐BaF2‐LaF3‐AlF3‐NaF Fiber Lasers Using Carbon Nanotube–Saturable Absorber and GaSb‐Based Semiconductor‐Saturable Absorber Mirror

open access: yesAdvanced Photonics Research, EarlyView.
We compare Q‐switched mode‐locking in Er‐doped ZrF4‐BaF2‐LaF3‐AlF3‐NaF fiber lasers using an aerosol‐synthesized carbon nanotube (CNT)‐saturable absorber with a GaSb‐based semiconductor‐saturable absorber mirror (SESAM). While SESAM enables shorter pulses with higher peak power, CNT absorbers offer tunability and cost‐effectiveness.
Boris Perminov   +5 more
wiley   +1 more source

Thermomechanical design, hybrid fabrication, and testing of a MOEMS deformable mirror [PDF]

open access: hybrid, 2013
Claudia Reinlein   +5 more
openalex   +1 more source

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