The problem of emotional instability of would-be teachers in higher education

An attempt to interpret some aspects of such integral human property as emotional stability is suggestedCделана попытка осмыслить отдельные аспекты развития такого интегративного качества личности, как эмоциональная устойчивост

Transient Regime of Kerr Frequency Comb Formation

Temporal growth of an optical Kerr frequency comb generated in a microresonator is studied both experimentally and numerically. We find that the comb emerges from vacuum fluctuations of the electromagnetic field on timescales significantly exceeding the ringdown time of the resonator modes. The frequency harmonics of the comb spread starting from the optically pumped mode if the microresonator is characterized with anomalous group velocity dispersion. The harmonics have different growth rates resulting from sequential four-wave mixing process that explains intrinsic modelocking of the comb.Comment: 4 pages, 5 figure

Hard and Soft Excitation Regimes of Kerr Frequency Combs

We theoretically study the stability conditions and excitation regimes of hyper-parametric oscillation and Kerr frequency comb generation in continuously pumped nonlinear optical resonators possessing anomalous group velocity dispersion. We show that both hard and soft excitation regimes are possible in the resonators. Selection between the regimes is achieved via change in the parameters of the pumping light.Comment: 4 pages, 7 figure

Miniature Optical Atomic Clock: Stabilization of a Kerr Comb Oscillator

Mechanical clocks consist of a pendulum and a clockwork that translates the pendulum period to displayed time. The most advanced clocks utilize optical transitions in atoms in place of the pendulum and an optical frequency comb generated by a femtosecond laser as the clockwork. The comb must be stabilized at two points along its frequency spectrum: one with a laser to lock a comb line to a transition in the atom, and another through self referencing to stabilize the frequency interval between the comb lines. This approach requires advanced techniques, so optical atomic clocks are currently laboratory devices in specialized labs. In this paper we leverage unique properties of Kerr comb oscillators for realization of optical atomic clocks in miniature form factors. In particular, we describe a clock based on D1 transition of 87Rb that fits in the palm of the hand, and can be further miniaturized to chip scale.Comment: 4 pages, 4 figure

Evaluation of individual-typological features of students of is professional-pedagogical institute

The article deals with the diagnostics results in the sphere of students’ predisposition to the certain sphere of professional activity; the results of distribution between the students’ population into six types of the personalityАнализируются результаты диагностики предрасположенности студентов к определенной сфере профессиональной деятельности; приводятся результаты распределения популяции обследуемых студентов на шесть типов личност