Wall depletion effect of population at upper laser level on optical gain in CO2-He waveguide lasers. (USA)

Abstract. The ego depletion effect has been examined by over 300 independent studies during the past two decades. Despite its pervasive influence, recently this effect has been severely challenged and asserted to be a fake. Based on an up-to-date meta-analysis that examined the effectiveness of each frequently used depleting task, we preregistered the current experiment with the aim to examine whether there would be an ego depletion effect when the Stroop task is used as the depleting task. The results demonstrated a significant ego depletion effect. The current research highlights the importance of the depleting task’s effectiveness. That is to say, the “ego” could be “depleted,” but only when initial exertion is “depleting.”

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The Limits of Ego Depletion

Social Psychology ◽

10.1027/1864-9335/a000365 ◽

2019 ◽

Vol 50 (5-6) ◽

pp. 292-304 ◽

Cited By ~ 2

Author(s):

Mario Wenzel ◽

Marina Lind ◽

Zarah Rowland ◽

Daniela Zahn ◽

Thomas Kubiak

Keyword(s):

Research Agenda ◽

Statistical Power ◽

Interindividual Variability ◽

Ego Depletion ◽

Crossover Design ◽

Effect Sizes ◽

Future Research ◽

Future Research Agenda ◽

Depletion Effect ◽

Within Subjects

Abstract. Evidence on the existence of the ego depletion phenomena as well as the size of the effects and potential moderators and mediators are ambiguous. Building on a crossover design that enables superior statistical power within a single study, we investigated the robustness of the ego depletion effect between and within subjects and moderating and mediating influences of the ego depletion manipulation checks. Our results, based on a sample of 187 participants, demonstrated that (a) the between- and within-subject ego depletion effects only had negligible effect sizes and that there was (b) large interindividual variability that (c) could not be explained by differences in ego depletion manipulation checks. We discuss the implications of these results and outline a future research agenda.

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A review of the slip (wall depletion) of polymer solutions, emulsions and particle suspensions in viscometers: its cause, character, and cure

International Journal of Multiphase Flow ◽

10.1016/s0301-9322(97)88450-9 ◽

1996 ◽

Vol 22 ◽

pp. 132 ◽

Cited By ~ 1

Author(s):

H Barnes

Keyword(s):

Polymer Solutions ◽

Particle Suspensions ◽

Wall Depletion

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Transition from gain guiding to index guiding and characterisation of 1.55 μm bridge-contacted ridge-waveguide lasers

IEE Proceedings J Optoelectronics ◽

10.1049/ip-j.1987.0006 ◽

1987 ◽

Vol 134 (1) ◽

pp. 22 ◽

Cited By ~ 1

Author(s):

E. Hartl ◽

G. Müller

Keyword(s):

Ridge Waveguide ◽

Waveguide Lasers ◽

Ridge Waveguide Lasers

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Pump-Probe Measurements Using Silicon Nanocrystal Waveguides

MRS Proceedings ◽

10.1557/proc-770-i3.2 ◽

2003 ◽

Vol 770 ◽

Cited By ~ 1

Author(s):

Nathanael Smith ◽

Max J. Lederer ◽

Marek Samoc ◽

Barry Luther-Davies ◽

Robert G. Elliman

Keyword(s):

Probe Beam ◽

Time Resolution ◽

Pump Beam ◽

Silicon Nanocrystals ◽

Continuous Wave ◽

Optical Gain ◽

Optical Pump ◽

Time Resolved ◽

Pump Probe ◽

Probe Measurements

AbstractOptical pump-probe measurements were performed on planar slab waveguides containing silicon nanocrystals in an attempt to measure optical gain from photo-excited silicon nanocrystals. Two experiments were performed, one with a continuous-wave probe beam and a pulsed pump beam, giving a time resolution of approximately 25 ns, and the other with a pulsed pump and probe beam, giving a time resolution of approximately 10 ps. In both cases the intensity of the probe beam was found to be attenuated by the pump beam, with the attenuation increasing monotonically with increasing pump power. Time-resolved measurements using the first experimental arrangement showed that the probe signal recovered its initial intensity on a time scale of 45-70 μs, a value comparable to the exciton lifetime in Si nanocrystals. These data are shown to be consistent with an induced absorption process such as confined carrier absorption. No evidence for optical gain was observed.

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