Artículo
Beating thermal noise in a dynamic signal measurement by a nanofabricated cavity optomechanical sensor
Wang, Mingkang; Perez, Diego Javier
; Ramer, Georg; Pavlidis, Georges; Schwartz, Jeffrey J.; Yu, Liya; Ilic, Robert; Centrone, Andrea; Aksyuk, Vladimir A.
Fecha de publicación:
03/2023
Editorial:
Science Advances is the American Association for the Advancement of Science
Revista:
Science Advances
ISSN:
2375-2548
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Thermal fluctuations often impose both fundamental and practical measurement limits on high-performance sensors, motivating the development of techniques that bypass the limitations imposed by thermal noise outside cryogenic environments. Here, we theoretically propose and experimentally demonstrate a measurement method that reduces the effective transducer temperature and improves the measurement precision of a dynamic impulse response signal. Thermal noise–limited, integrated cavity optomechanical atomic force microscopy probes are used in a photothermal-induced resonance measurement to demonstrate an effective temperature reduction by a factor of ≈25, i.e., from room temperature down as low as ≈12 K, without cryogens. The method improves the experimental measurement precision and throughput by >2×, approaching the theoretical limit of ≈3.5× improvement for our experimental conditions. The general applicability of this method to dynamic measurements leveraging thermal noise–limited harmonic transducers will have a broad impact across a variety of measurement platforms and scientific fields.
Palabras clave:
OPTOMECHANICAL
,
PROBES
,
PHOTONICS
,
PTIR
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Identificadores
Colecciones
Articulos (UE-INN - NODO BARILOCHE)
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Citación
Wang, Mingkang; Perez, Diego Javier; Ramer, Georg; Pavlidis, Georges; Schwartz, Jeffrey J.; et al.; Beating thermal noise in a dynamic signal measurement by a nanofabricated cavity optomechanical sensor; Science Advances is the American Association for the Advancement of Science; Science Advances; 9; 11; 3-2023; 1-11
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