Results 301 to 310 of about 319,656 (388)

Ultrahigh-radiance TTA-based OLED with 13 kA cm^-² current injection. [PDF]

Light Sci Appl
Zhao J, Mao Y, Liu W, Peng Z, Wang X, Zou J, Wang J, Chen D, Ma D, Wu H, Hu B, Peng J.   +11 more
europepmc   +1 more source

Simulation-Based Design of a Silicon SPAD with Dead-Space-Aware Avalanche Region for Picosecond-Resolved Detection. [PDF]

Sensors (Basel)
Youh MJ, Chen HL, Pu NW, Liu ML, Chou YP, Li WK, Chou YP.   +6 more
europepmc   +1 more source

Longevity Improvement of Optically Activated, High Gain GaAs Photoconductive Semiconductor Switches

, 2000
A. Már
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Single-exciton optical gain in semiconductor nanocrystals

Nature, 2007
Nanocrystal quantum dots have favourable light-emitting properties. They show photoluminescence with high quantum yields, and their emission colours depend on the nanocrystal size--owing to the quantum-confinement effect--and are therefore tunable. However, nanocrystals are difficult to use in optical amplification and lasing.
Victor I Klimov, Sergei A Ivanov, Jagjit Nanda   +2 more
exaly   +4 more sources

Three-section semiconductor optical amplifier for monitoring of optical gain

IEEE Photonics Technology Letters, 1992
A 1.5- mu m multiquantum well amplifier divided into three sections with short contacts at the input and output facets is described. A simple derivation shows that the amplifier optical gain is proportional to the ratio of voltage changes at the facet contacts induced by the optical signal. Measurements of optical gain and contact voltage as a function
M.A. Newkirk, U. Koren, B.I. Miller, M.D. Chien, M.G. Young, T.L. Koch, G. Raybon, C.A. Burrus, B. Tell, K.F. Brown-Goebeler   +9 more
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Net Coherent Optical Gain in Strongly Pumped Semiconductor Microcavities

physica status solidi (a), 2000
We study the subpicosecond gain dynamics in a high-finesse semiconductor microcavity containing quantum wells by means of degenerate pump-probe spectroscopy. Tuning the optical excitation in resonance with both the exciton and the cavity modes, at high pump fields the probe pulses are strongly amplified near the energy of the empty-cavity mode. At zero
QUOCHI, FRANCESCO, SABA, MICHELE, Ciuti C, Oesterle U, Staehli JL, Deveaud B, BONGIOVANNI, GIOVANNI LUIGI CARLO, MURA, ANTONIO ANDREA   +7 more
openaire   +3 more sources

Transient hot-carrier optical gain in a gain-switched semiconductor laser

Applied Physics Letters, 2013
The transient optical gain was quantitatively determined from the rise time of output pulses of a gain-switched semiconductor laser via impulsive optical pumping. The optical gain for a high carrier density during gain switching was greatly reduced from that during steady-state operation because of hot carriers.
Takashi Ito, Shaoqiang Chen, Masahiro Yoshita, Toshimitsu Mochizuki, Changsu Kim, Hidefumi Akiyama, Loren N. Pfeiffer, Ken W. West   +7 more
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Towards zero-threshold optical gain using charged semiconductor quantum dots

Nature Nanotechnology, 2017
Kaifeng Wu, Young-Shin Park, Jaehoon Lim
exaly   +2 more sources