High mechanical Q-factor measurements on calcium fluoride at cryogenic temperatures
| Autor: | M. Thürk, Sandor Nietzsche, W. Vodel, Ronny Nawrodt, Torsten Koettig, Paul Seidel, A. Zimmer |
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| Rok vydání: | 2007 |
| Předmět: |
business.industry
Analytical chemistry chemistry.chemical_element Binary compound Substrate (electronics) Atmospheric temperature range Tungsten Condensed Matter Physics Temperature measurement Electronic Optical and Magnetic Materials Vibration chemistry.chemical_compound Optics chemistry Q factor Fluorine business Instrumentation |
| Zdroj: | The European Physical Journal Applied Physics. 38:53-59 |
| ISSN: | 1286-0050 1286-0042 |
| Popis: | Mechanical Q -factor measurements of single crystalline calcium fluoride CaF 2 bulk material are presented. Resonant modes between 27 and 100 kHz were investigated on a cylindrical test sample (). For selected modes low temperature measurements of the mechanical Q -factor were done within a temperature range from 5 to 300 K. For the Q -measurements a ring-down technique was used. The substrate was suspended as a pendulum by means of a tungsten wire loop. The highest Q -factor has been achieved around 60 K with 3 × 10 8 which is the highest Q -factor reported on CaF 2 up to now. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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