Results 241 to 250 of about 112,017 (279)

Doppler Lidar Based on Mode-Locked Semiconductor Lasers. [PDF]

Micromachines (Basel)
Chen Y, Zhou M, Ma W, Sun Z, Shi Y, Zou H, Zhang Y.   +6 more
europepmc   +1 more source

Extracting disorder parameters from optical spectra of non-fullerene acceptors.

Mater Horiz
Frederix S, Giannini S, Van Landeghem M, Beljonne D, Vandewal K.   +4 more
europepmc   +1 more source

The mechanical properties of Arabidopsis thaliana roots adapt dynamically during development and to stress

Alonso Baez L, Bjørkøy A, Saffioti F, Morghen S, Amanda D, Tichá M, Besten M, Ivanova A, Sprakel J, Stokke BT, Hamann T.   +10 more
europepmc   +1 more source

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Semiconductor Microlaser Linewidths

Physical Review Letters, 1994
Semiconductor microdisk laser linewidths are measured for cavity volumes near a cubic wavelength. The linewidths remain near the subthreshold values for pump powers well above threshold in agreement with a microscopic theory that includes the coupled dynamics of the optical emission and the nonequilibrium electron-hole gas in the cavity.
, Mohideen, , Slusher, , Jahnke, , Koch
openaire   +2 more sources

Linewidth instabilities in narrow-linewidth flashlamp-pumped dye laser oscillators

Applied Optics, 1988
Linewidth instabilities in double-longitudinal-mode (250 MHz
F J, Duarte, J J, Ehrlich, S P, Patterson, S D, Russell, J E, Adams   +4 more
openaire   +2 more sources

Subhertz-linewidth Nd:YAG laser

Optics Letters, 2004
Light from a Nd:YAG laser at 1064 nm is independently stabilized to two Fabry-Perot etalons situated on separate vibration-isolation platforms. A heterodyne beat measurement shows their relative frequency stability to be at the part-in-10(15) level at 5 s and the relative linewidth to be less than 1 Hz.
Stephen A, Webster, Mark, Oxborrow, Patrick, Gill   +2 more
openaire   +2 more sources

Narrow-linewidth unstable resonator

Optics Letters, 1988
We describe the use of an asymmetric feedback ring in an unstable resonator to obtain arbitrarily narrow-linewidth radiation across the full available aperture. We demonstrate its use with an electric-discharge XeCl laser to produce single-line radiation with a linewidth of 0.15 cm−1.
D, Cooper, L L, Tankersley, J, Reintjes
openaire   +2 more sources

Linewidth narrowing of polaritons

Physical Review B, 1996
Polaritons are formed when the electromagnetic field couples to excitons in a semiconductor. In their high-quality semiconductor quantum microcavities, Fisher et al. observe an unexpected decrease in the polariton linewidth (the full width at half maximum) near resonance.
, Kinsler, , Whittaker
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Linewidth for fluxon oscillators

Physical Review B, 1982
Soliton perturbation theory is used to calculate the fluxon oscillator linewidth arising from fluxon interaction with background radiation. Detailed calculations in the case of an oscillator that is long compared with the Josephson length and for which the radiation field is thermal establish lower bounds for the linewidth of a real oscillator.
SALERNO, Mario, Scott AC
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Continuously linewidth tunable, polarisation maintaining, narrow linewidth fiber laser

Fiber Lasers XVI: Technology and Systems, 2019
High power polarised narrow linewidth sources are of immense importance in coherent beam combining (increased path length accuracy), spectral beam combining (reduced angular spread), non-linear frequency conversion (increased parametric gain) and remote detection.
B. S. Vikram, Vishal Choudhury, Roopa Prakash, Santosh Aparanji, V. R. Supradeepa   +4 more
openaire   +1 more source