National Repository of Grey Literature 123 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
SMV-2023-36: Wuhan Space
Hrabina, Jan ; Holá, Miroslava ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav
The contractual research was oriented towards the development of optical frequency reference intended for the frequency stabilisation of ultra-compact semiconductor laser sources. This optical reference is based on an absorption cell filled with ultra-pure absorption gases, and it allows precise locking of the lasers with laser spectroscopy methods. The cell will serve as a reference of optical frequencies in systems of laser standards (532-633 nm wavelengths).
SMV-2023-35: NIM Multipass
Hrabina, Jan ; Holá, Miroslava ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav
The contractual research was oriented towards the development of optical frequency references intended for the frequency stabilisation of ultra-compact laser sources. These optical references are based on absorption cells filled with ultra-pure absorption gases and they allow precise locking of the lasers with the methods of laser spectroscopy. The cells will serve as the references of optical frequencies in systems of laser standards (532 nm wavelengths).
SMV-2023-34: ULM2023
Hrabina, Jan ; Holá, Miroslava ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav
The contractual research was oriented towards the development of optical frequency reference intended for the frequency stabilisation of ultra-compact semiconductor laser sources. This optical reference is based on an absorption cell filled with ultra-pure absorption gases, and it allows precise locking of the lasers with laser spectroscopy methods. The cell will serve as a reference of optical frequencies in systems of laser standards (532-633 nm wavelengths).
SMV-2023-31: JAXA 2023
Hrabina, Jan ; Holá, Miroslava ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav
The contractual research was oriented towards the development of optical frequency references intended for the frequency stabilisation of ultra-compact laser sources. These optical references are based on absorption cells filled with ultra-pure absorption gases and allow precise locking of the lasers with laser spectroscopy methods. The cells will serve as the references of optical frequencies in systems of laser standards intended for space-related research (515-633 nm wavelengths).
SMV-2023-33: HeNe2023
Hrabina, Jan ; Holá, Miroslava ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav
The contractual research was oriented towards the development of optical frequency references intended for the frequency stabilisation of ultra-compact laser sources. These optical references were based on absorption cells filled with ultra-pure absorption gases and they allow precise locking of the lasers with the methods of laser spectroscopy. The cells will serve as the references of optical frequencies in systems of primary length standards (633 nm wavelength).
SMV-2023-32: LPP 3LIF
Hrabina, Jan ; Holá, Miroslava ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav
The contractual research was oriented towards the development of optical frequency references intended for laser-induced fluorescence and laser spectroscopy research. These optical references are based on absorption cells filled with ultra-pure absorption gases.
SMV-2023-30: ILA compact
Hrabina, Jan ; Holá, Miroslava ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav
The contractual research was oriented towards the development of optical frequency reference intended for the frequency stabilisation of ultra-compact semiconductor laser sources. This optical reference is based on an absorption cell filled with ultra-pure absorption gases, and it allows precise locking of the lasers with laser spectroscopy methods. The cell will serve as a reference of optical frequencies in systems of laser standards (532-633 nm wavelengths).
Measurement of magnetic field stability using 40Ca+ ion
Pham, Minh Tuan ; Lešundák, Adam ; Čížek, Martin ; Podhora, L. ; Řeřucha, Šimon ; Jedlička, Petr ; Slodička, L. ; Lazar, Josef ; Číp, Ondřej
One of the main limitations in the long-term measurement of the clock transition's absolute frequency is the magnetic field's fluctuation. The time-varying fluctuation of the external magnetic field leads to frequency shifts of the Zeeman components, thereby reducing the optical clock's frequency stability over time. Currently, optical atomic references are usually implemented with the help of a single ion. However, scaling the number of ions to higher values brings an indisputable benefit in the form of a high signal-to-noise ratio and, thus to the efficiency of the entire measurement process. In this case, the ions are spread over a large area, forming so-called ionic Coulomb crystals. In addition to the spatial stability of the magnetic field, the homogeneity of the magnetic field is also significant when working with Coulomb crystals. Excessive magnetic perturbation can be greatly reduced by covering the assembly with a magnetic shield or by using permanent magnets instead of conventionally used magnetic coils. Another method is averaging over multiple-level transitions. This contribution presents a simple method for measuring the stability of the magnetic field at the ion position.
SMV-2022-37: Interferometers for coordinate measurement
Holá, Miroslava ; Hrabina, Jan ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav ; Humeňanská, Jana
The contract research was focused on the development of multi-axis measuring systems using the most accurate method of measurement based on the principle of laser radiation interference. The basic reference is a laser source with a wavelength of 633 nm. Measuring systems are intended for devices requiring measurement accuracy in the order of nanometers.
SMV-2022-34: Multipass cells
Hrabina, Jan ; Holá, Miroslava ; Oulehla, Jindřich ; Pokorný, Pavel ; Lazar, Josef ; Šarlejová, Tatiana ; Šlechtický, Stanislav
The contractual research was oriented towards the development of optical frequency references intended for the frequency stabilisation of ultra-compact laser sources. These optical references are based on absorption cells filled with ultra-pure absorption gases and they allow precise locking of the lasers with the methods of laser spectroscopy. The cells will serve as the references of optical frequencies in systems of laser standards (532 nm wavelengths).

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3 Lazar, Jan
2 Lazar, Jaroslav
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