Results 31 to 40 of about 321,881 (290)

Optical Gain of Vertically Coupled Cd_0.6Zn_0.4Te/ZnTe Quantum Dots

Nanomaterials, 2023
The optical modal gain of Cd0.6Zn0.4Te/ZnTe double quantum dots was measured using a variable stripe length method, where large and small quantum dots are separated with a ZnTe layer.
Ming Mei, Minju Kim, Minwoo Kim, Inhong Kim, Hong Seok Lee, Robert A. Taylor, Kwangseuk Kyhm   +6 more
doaj   +1 more source

A subarcsecond near-infrared view of massive galaxies at z > 1 with Gemini Multiconjugate Adaptive Optics [PDF]

, 2018
We present images taken using the Gemini South Adaptive Optics Imager (GSAOI) with the Gemini Multiconjugate Adaptive Optics System (GeMS) in three 2 arcmin$^2$ fields in the Spitzer Extragalactic Representative Volume Survey.
Afonso, J., Farrah, D., Gonzales-Solares, E., Guarnieri, P., Jagannathan, P., Jarvis, M. J., Lacy, M., Mao, M., Maraston, C., Nielsen, D. M., Nyland, K., Petric, A. O., Pforr, J., Ridgway, S. E., Sajina, A., Surace, J. A., Vaccari, M.   +16 more
core   +3 more sources

Magnetoplasmonic design rules for active magneto-optics

, 2014
Light polarization rotators and non-reciprocal optical isolators are essential building blocks in photonics technology. These macroscopic passive devices are commonly based on magneto-optical Faraday and Kerr polarization rotation.
Aieta F., Alexandre Dmitriev, Armelles G., Armelles G., Banthí J. C., Belotelov V. I., Belotelov V. I., Bi L., Bonanni V., Chen J., Chin J. Y., Ctistis G., Fallahi A., Fang Z., Fredriksson H., Freiser M., González-Díaz J. B., Gullans M., Holloway C. L., Irina Zubritskaya, Johan Åkerman, Ju L., Kildishev A. V., Kristof Lodewijks, Maccaferri N., Maccaferri N., Maccaferri N., Monticone F., Nicolò Maccaferri, Northup T. E., Paolo Vavassori, Papaioannou E. T., Pendry J. B., Peyronel T., Pineider F., Randy K. Dumas, Razdolsky I., Sepúlveda B., Shalaby M., Stadler B. J. H., Tamagnone M., Tavakol Pakizeh, Temnov V. V., Temnov V. V., Temnov V. V., Tuboltsev V., Valev V. K., Vavassori P., Vavassori P., Višn̆ovskýa S., Wang F., Yu N., Yu N., Yu Z.   +53 more
core   +1 more source

ACTIVE OPTICAL CLOCKS

Frequency Standards and Metrology, 2009
This letter presents the principles and techniques of active optical clock, a special laser combining the laser physics of one-atom laser, bad-cavity gas laser, super-cavity stabilized laser and optical atomic clock. As an example, a compact version of active optical clock based on thermal Strontium atomic beam shows a quantum-limited linewidth of 0.51
openaire   +2 more sources

Optical Design and Active Optics Methods in Astronomy

, 2013
Optical designs for astronomy involve implementation of active optics and adaptive optics from X-ray to the infrared. Developments and results of active optics methods for telescopes, spectrographs and coronagraph planet finders are presented.
Lemaitre, Gerard R.
core   +3 more sources

Evaluation of polymer based third order nonlinear integrated optics devices [PDF]

, 1998
Nonlinear polymers are promising materials for high speed active integrated optics devices. In this paper we evaluate the perspectives polymer based nonlinear optical devices can offer. Special attention is directed to the materials aspects.
Blom, F.C., Diemeer, M.B.J., Driessen, A., Hoekstra, H.J.W.M., Horst, F., Krijnen, G.J.M., Lambeck, P.V., Popma, Th.J.A., Schoot, J.B.P. van   +8 more
core   +2 more sources

Two-level laser light statistics [PDF]

, 2002
The statistics of the light emitted by two-level lasers is evaluated on the basis of generalized rate equations. According to that approach, all fluctuations are interpreted as being caused by the jumps that occur in active and detecting atoms. The intra-
Arnaud, Arnaud, Chusseau, F. Philippe, Golubev, J. Arnaud, Kennedy, Khazanov, Koganov, Kolobov, L. Chusseau, Levien, Loudon, Machida, Ralph, Ritsch, Scully, Yamamoto   +17 more
core   +6 more sources

Stimuli‐responsive active materials for dynamic control of light field

Responsive Materials, 2023
The increasing demand for the multidimensional and dynamic control of light has spurred the development of stimuli‐responsive, reconfigurable, and programmable optical systems.
Ren Zheng, Yang Wei, Zi‐Chen Zhang, Ze‐Yu Wang, Ling‐Ling Ma, Yu Wang, Ling Huang, Yan‐Qing Lu   +7 more
doaj   +1 more source

The Palomar Kernel Phase Experiment: Testing Kernel Phase Interferometry for Ground-based Astronomical Observations

, 2015
At present, the principal limitation on the resolution and contrast of astronomical imaging instruments comes from aberrations in the optical path, which may be imposed by the Earth's turbulent atmosphere or by variations in the alignment and shape of ...
Greenbaum, Alexandra, Hinkley, Sasha, Ireland, Michael J., Latyshev, Alexey, Martinache, Frantz, Monnier, John D., Pope, Benjamin, Tuthill, Peter   +7 more
core   +2 more sources

Discrete solitons in coupled active lasing cavities [PDF]

, 2012
We examine the existence and stability of discrete spatial solitons in coupled nonlinear lasing cavities (waveguide resonators), addressing the case of active defocusing media, where the gain exceeds damping in the low-amplitude limit.
Alexey V. Yulin, Egorov, Egorov, Egorov, Jaroslaw E. Prilepsky, Kiselev, Lederer, Magnus Johansson, Peschel, Staliunas, Stanislav A. Derevyanko, Yulin, Yulin   +12 more
core   +3 more sources