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Issue 10, 2026
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Accepted articles
Instruments and methods of investigation


Applications of semiconductor quantum wells in femtosecond lasers

 a,  a,  a,  a,  a,  a,  b,  b
a Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, prosp. Lavrent'eva 13, Novosibirsk, 630090, Russian Federation
b Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, prosp. Akad. Lavrent'eva 15B, Novosibirsk, 630090, Russian Federation

An overview of the results of research on semiconductor quantum wells of the first kind is given, you GaAs (001) spread on singular substrates by molecular beam epitaxy (MBE). The cycle of the described works was based on the "pumping—probing" method with temporary resolution 0.13 picoseconds and reflection sensitivity 5 × 10-6. Also described method for increasing the speed of operation of optical gates based on quantum wells, based on charge carrier tunneling between quantum wells; recovery times of linear reflection reaches 0.4 ps. Information on development of compact Yb: KYW laser with pulse duration up to 200 fs, with maximum average output power 2.5 W (optical pumping power 5 W) and with maximum frequency femtosecond pulse repetition 0.98 GHz. Optical shutter failure threshold is not less than 8.87 mJ/cm2. This is double that of the commercial shutter.

Keywords: quantum wells, high-speed A3B5 semiconductor mirrors with absorption saturation, passive laser mode synchronization
DOI: 10.3367/UFNe.2026.10.040214
Citation: Rubtsova N N, Kovalev A A, Ledovskikh D V, Preobrazhensky V V, Putyato M A, Semyagin B R, Kuznetsov S A, Pivtsov V S "Applications of semiconductor quantum wells in femtosecond lasers" Phys. Usp., accepted

Received: 9th, July 2026, revised: 29th, September 2026, 11th, October 2026

Оригинал: Рубцова Н Н, Ковалёв А А, Ледовских Д В, Преображенский В В, Путято М А, Семягин Б Р, Кузнецов С А, Пивцов В С «Применение полупроводниковых квантовых ям в фемтосекундных лазерах» УФН, принята к публикации; DOI: 10.3367/UFNr.2026.10.040214

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