Results 91 to 100 of about 453,893 (187)

Transmission‐Mode Silicon‐Rich Nitride Mie‐Void Metasurfaces in the Visible

Laser &Photonics Reviews, EarlyView.
Transmission‐mode Mie‐void metasurfaces are demonstrated in silicon‐rich nitride, where localized void resonances hybridize with slab‐guided and Fabry–Pérot‐like modes in a finite film, producing a quantified avoided crossing between coupled modes. Controlled void depth tunes the visible transmission spectrum, enabling structural color and spatial ...
Oren Goldberg, Noa Mazurski, Uriel Levy
wiley   +1 more source

Ultra-narrow (sub-MHz) linewidth emission from discrete mode laser diodes [PDF]

, 2007
A class of laser which exhibits ultra-narrow sub MHz linewidth emission necessary for numerous applications in optical communications and sensors is described.
Kelly, Brian, J. O'Gorman, O'Gorman, J., Besnard, P., Jones, D., Besnard, Pascal, D. Jones, Guignard, Celine, Barry, Liam P., P. Besnard, C. Guignard, J. Patchell, L. P. Barry, B. Kelly, Patchell, J., O'Gorman, James   +15 more
core   +1 more source

Integration of III‐V Quantum Dot Photonic Devices on Silicon Nitride via Lithography‐Aligned Micro‐Transfer Printing

Laser &Photonics Reviews, EarlyView.
Lithography‐aligned micro‐transfer printing integrates unprocessed InAs/GaAs quantum dot membranes with silicon nitride photonic circuits. Post‐transfer patterning defines quantum dot photonic devices directly on the target chip, enabling precise GaAs–SiNx coupling, purcell‐enhanced single photon emission, and scalable on‐chip routing and correlation ...
Xuebin Peng, Jiawei Yang, Wentao Ma, Zihao Liu, Xuan Pu, Ying Yu, Siyuan Yu   +6 more
wiley   +1 more source

Polarisation dynamics of a birefringent Fabry-Perot cavity

, 2018
Optical Fabry–Perot cavities always show a non-degeneracy of two orthogonal polarisation states. This is due to the unavoidable birefringence of dielectric mirrors whose effects are extremely important in Fabry–Perot-based high-accuracy polarimeters: in ...
Della Valle, F., F Della Valle, Ejlli, A., G Zavattini, Zavattini, G., A Ejlli   +5 more
core   +1 more source

An analytical method to find the optimal parameters for gas detectors based on correlation spectroscopy using a Fabry-Perot interferometer

, 2005
Several designs of infrared absorption based gas detector use a Fabry-Perot Interferometer (FPI) to modulate the incident light. In these systems, generally the FPI's fringes are matched with very well defined rotational absorption lines of a target ...
SPIE Europe Internation Symposium on Optical System Design, Rutt, Harvey, Vargas-Rodríguez, Everardo   +2 more
core   +1 more source

Toward Low‐Power Laser Refrigeration ‐ Cooling a Resonant WGM Crystalline Cavity

Laser &Photonics Reviews, EarlyView.
Laser refrigeration offers a method to cool solids to low temperatures by using only light. By illuminating bulk crystals doped with rare‐earth ions one can engineer the emitted fluorescent light to be at shorter wavelengths than the pump light ‐ thus extracting heat/phonons from the solid and cooling the crystals.
Jinjin Du, Rong Zhang, Zhenghan Yuan, Cyril Laplane, Luke S. Trainor, Harald G. L. Schwefel, Jason Twamley   +6 more
wiley   +1 more source

Construction optimization and functional applications of fluorescent nanodiamonds

Responsive Materials, EarlyView.
This review summarizes synthesis, surface modification and optical properties of fluorescent nanodiamonds. Their advances in quantum sensing, single‐photon emission and biomedicine are discussed, and existing challenges and future directions are presented.
Yunpeng Yang, Sen Zhang, Chao Chen, Wensi Yang, Zuanquan Chen, Rui Fan, Linlin Liu, Benjian Liu, Kang Liu, Zhibo Zhang, Bing Dai, Jiaqi Zhu   +11 more
wiley   +1 more source

Significance of Fabry-Perot Cavities for Space Gravitational Wave Antenna DECIGO

Galaxies
DECIGO is a future Japanese project for the detection of gravitational waves in space. To conduct various scientific missions, including the verification of cosmic inflation through the detection of primordial gravitational waves as the main objective ...
Kenji Tsuji, Tomohiro Ishikawa, Kurumi Umemura, Yuki Kawasaki, Shoki Iwaguchi, Ryuma Shimizu, Masaki Ando, Seiji Kawamura   +7 more
doaj   +1 more source

Intelligent Continuum Micromachines in Complex Confined Spaces

SmartBot, EarlyView.
The cover depicts a conceptual design for an intelligent continuum micromachine entering a target capsule used in fusion‐energy research through its slender gas‐fill tube. By combining route‐adaptive deformation, embedded sensing, and a functional end effector, the robot could inspect hidden defects, assess local conditions, and support localized ...
Huayang Sai, Yunyue Yang, Shuxing Xu, Jinbo Hu, Jiliang Wang, Zhehao Gan, Wei Tang, Tian‐Yun Huang   +7 more
wiley   +1 more source

Very high Q frequency-locked Fabry–Perot cavity

, 1996
We report measurements on a 1.75 m long Fabry-Perot cavity locked to a Nd:YAG tunable laser using the Pound-Drever technique. The cavity decay time was measured to be about 291 μs corresponding to a quality factor Q of about 5X1011, the highest value ...
MICOSSI P, CARUGNO G, RUOSO G, MARIGO S, RIZZO R, DELLA VALLE, FEDERICO, ZAVATTINI E., PERRONE F, ONOFRIO R, CARUSOTTO S, PAPA M, POLACCO E, PACE P, CANTATORE, GIOVANNI, MILOTTI, EDOARDO, ZAVATTINI G, DE RIVA A. M   +16 more
core   +2 more sources