Results 241 to 250 of about 137,045 (307)

Deterministic and highly indistinguishable single photons in the telecom C-band. [PDF]

Nat Commun
Hauser N, Bayerbach M, Kaupp J, Reum Y, Peniakov G, Michl J, Kamp M, Huber-Loyola T, Pfenning AT, Höfling S, Barz S.   +10 more
europepmc   +1 more source

Stimulated Raman Spectroscopy Using a Tunable Visible Broadband Probe Pulse Generated by Kerr Instability Amplification. [PDF]

Appl Spectrosc
Drouillard NG, Hammond TJ.
europepmc   +1 more source

Design of a UWB Interference-Rejection LNA Based on a Q-Enhanced Notch Filter. [PDF]

Micromachines (Basel)
Li J, Fan Y, Meng F.
europepmc   +1 more source

Home lighting, blue-light filtering, and their effects on melatonin suppression. [PDF]

Sci Rep
Terán E, Yee-Rendon CM, Sosa-Arámbula HJ, De La Herrán-Arita AK, Woods RL.   +4 more
europepmc   +1 more source

Tunable single- and dual-wavelength lasers around 1.4 μm in Nd:LuGdAG crystal. [PDF]

PLoS One
Huang H, Li Y, Anh NT, Lü Y, Xia J.
europepmc   +1 more source

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Tunable electrooptic rf filter

Applied Optics, 1984
A real time tunable electrooptic rf filter is demonstrated using a multichannel total internal reflection modulator to spatially filter the output of a Bragg cell. The demonstrated filter has a bandwidth to resolution ratio of 28. This ratio can potentially be increased to over 5000 with a like number of individually resolved frequencies.
M B, Chang, J M, Guerin
openaire   +2 more sources

Optically tunable optical filter

Applied Optics, 1995
We experimentally demonstrate an optically tunable optical filter that uses photorefractive barium titanate. With our filter we implement a spectrum analyzer at 632.8 nm with a resolution of 1.2 nm. We simulate a wavelength-division multiplexing system by separating two semiconductor laser diodes, at 1560 nm and 1578 nm, with the same filter.
R T, James, C, Wah, K, Iizuka, H, Shimotahira   +3 more
openaire   +2 more sources

Terahertz antenna with tunable filtering

Applied Optics, 2023
A terahertz (THz) antenna with tunable filtering is designed and numerically studied. A slotted monopole radiator with defected ground structure is used for operating with wideband response with an impedance bandwidth in the range of 3.80–11.98 THz for S 11 ≤ − 10 d B .
Mohd Farman Ali, Zaid Jawed, Vinamra Raj, Gaurav Varshney   +3 more
openaire   +2 more sources

High-performance tunable filter

Applied Optics, 1998
The tuning performance of a liquid-crystal, electro-optically tunable, Lyot filter is described. This filter is widely tunable across the visible region up to a wavelength of approximately 630 nm and has very high performance characteristics that are preserved over the entire tuning range.
J, Staromlynska, S M, Rees, M P, Gillyon
openaire   +2 more sources

Tunable Filters with Extended Tunability

Japanese Journal of Applied Physics, 1992
Filters with extended tunability using waveguide devices are proposed. The first and second types of filters are combinations of a filter with a wide tuning range and a filter with narrow passbands. The first type is composed of cascaded filters and the second type is the filter with a wide tuning range embedded in a resonator.
Hideaki Okayama Hideaki Okayama, Masato Kawahara Masato Kawahara   +1 more
openaire   +1 more source