Littérature scientifique sur le sujet « Noice spectroscopy »

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Articles de revues sur le sujet "Noice spectroscopy"

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Chao Shen, Chao Shen, Yujun Zhang Yujun Zhang, and Jiazheng Ni Jiazheng Ni. "Real-time adaptive noise cancelling for signal-to-noise enhancement in direct absorption spectroscopy." Chinese Optics Letters 11, no. 7 (2013): 073001–73004. http://dx.doi.org/10.3788/col201311.073001.

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Lun, Zhichen, Xiaohong Wu, Jiajun Dong, and Bin Wu. "Deep Learning-Enhanced Spectroscopic Technologies for Food Quality Assessment: Convergence and Emerging Frontiers." Foods 14, no. 13 (2025): 2350. https://doi.org/10.3390/foods14132350.

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Nowadays, the development of the food industry and economic recovery have driven escalating consumer demands for high-quality, nutritious, and safe food products, and spectroscopic technologies are increasingly prominent as essential tools for food quality inspection. Concurrently, the rapid rise of artificial intelligence (AI) has created new opportunities for food quality detection. As a critical branch of AI, deep learning synergizes with spectroscopic technologies to enhance spectral data processing accuracy, enable real-time decision making, and address challenges from complex matrices an
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Velichko, E. N., O. I. Kotov, E. K. Nepomnyashchaya, A. N. Petrov, and A. V. Sokolov. "On Basic Requirements to Main Elements of Laser Correlation Spectrometer." Journal of the Russian Universities. Radioelectronics 23, no. 1 (2020): 83–95. http://dx.doi.org/10.32603/1993-8985-2020-23-1-83-95.

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Introduction. Laser correlation spectroscopy is a promising method that allows one to analyze sizes of nanoparticles and to evaluate their shape and dynamics of aggregation in liquids. A limited usage of laser correlation spectroscopy is currently caused by insufficient accuracy of existing instruments and data processing algorithms. The paper described the development of laser correlation spectroscopic hardware complex designed for nanoparticles size determination in liquids. The basic requirements for the elements of the device and the approaches used to calculate the signal-to-noise ratio w
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Hu, Mengyuan, Andrea Ventura, Juliano Grigoleto Hayashi, Francesco Poletti, and Wei Ren. "Mid-Infrared Frequency Modulation Spectroscopy of NO Detection in a Hollow-Core Antiresonant Fiber." Photonics 9, no. 12 (2022): 935. http://dx.doi.org/10.3390/photonics9120935.

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Mid-infrared frequency modulation spectroscopy (FMS) in a tellurite hollow-core antiresonant fiber (HC-ARF) is investigated for gas detection. The spectroscopic system is demonstrated for nitric oxide (NO) detection by exploiting its strong absorption line at 1900.08 cm−1 with a quantum cascade laser (QCL). By modulating the injection current of the QCL at 250 MHz and measuring NO in a 35 cm long HC-ARF, we achieve a noise equivalent concentration of 67 ppb at an averaging time of 0.1 s. Compared to direct absorption spectroscopy with a low-pass filter for etalon noise reduction, the FMS techn
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Tang, Ting, Qing Luo, Liu Yang, Changlun Gao, Caijin Ling, and Weibin Wu. "Research Review on Quality Detection of Fresh Tea Leaves Based on Spectral Technology." Foods 13, no. 1 (2023): 25. http://dx.doi.org/10.3390/foods13010025.

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As the raw material for tea making, the quality of tea leaves directly affects the quality of finished tea. The quality of fresh tea leaves is mainly assessed by manual judgment or physical and chemical testing of the content of internal components. Physical and chemical methods are more mature, and the test results are more accurate and objective, but traditional chemical methods for measuring the biochemical indexes of tea leaves are time-consuming, labor-costly, complicated, and destructive. With the rapid development of imaging and spectroscopic technology, spectroscopic technology as an e
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Aleksandrov, E. B., and V. S. Zapasskii. "Spin Noise Spectroscopy." Journal of Physics: Conference Series 324 (October 21, 2011): 012002. http://dx.doi.org/10.1088/1742-6596/324/1/012002.

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Weng, Kanxing, Bin Wu, Feichen Wang, et al. "The Influence of Temperature on Frequency Modulation Spectroscopy in Atom Gravimeter." Sensors 22, no. 24 (2022): 9935. http://dx.doi.org/10.3390/s22249935.

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Atom gravimeters use locked lasers to manipulate atoms to achieve high-precision gravity measurements. Frequency modulation spectroscopy (FMS) is an accurate method of optical heterodyne spectroscopy, capable of the sensitive and rapid frequency locking of the laser. Because of the effective absorption coefficient, Doppler broadening and susceptibility depend on temperature, and the signal-to-noise ratio (SNR) of the spectroscopy could be affected by temperature. We present a detailed study of the influence of the temperature on FMS in atom gravimeters, and the experimental results show that t
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Paldus, Barbara A., and Alexander A. Kachanov. "An historical overview of cavity-enhanced methods." Canadian Journal of Physics 83, no. 10 (2005): 975–99. http://dx.doi.org/10.1139/p05-054.

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An historical overview of laser-based, spectroscopic methods that employ high-finesse optical resonators is presented. The overview begins with the early work in atomic absorption (1962) and optical cavities (1974) that led to the first mirror reflectivity measurements in 1980. This paper concludes with very recent extensions of cavity-enhanced methods for the study of condensed-phase media and biological systems. Methods described here include cavity ring-down spectroscopy, integrated cavity output spectroscopy, and noise-immune cavity-enhanced optical heterodyne molecular spectroscopy. Given
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Ishibe, Kiyoshiro, Satoru Nakada, Yutaka Mera, and Koji Maeda. "Nanoprobe Fourier-Transform Photoabsorption Spectroscopy Using a Supercontinuum Light Source." Microscopy and Microanalysis 18, no. 3 (2012): 591–95. http://dx.doi.org/10.1017/s1431927612000219.

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AbstractA scheme of photoabsorption spectroscopy based on scanning tunneling microscopy (STM) has been developed by using a supercontinuum light as the wideband light source of a Fourier transform interferometer for spectroscopic measurements. The performance was demonstrated for a sample of GaAs. The proof-of-concept test showed that the use of the supercontinuum light instead of halogen lamps greatly enhances the signal-to-noise ratio due to the high brilliance of the supercontinuum light emitted from a small core of the photonic crystal fiber that enables tight focusing of the spectroscopy
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Peng, Zhimin, Yanjun Du, and Yanjun Ding. "Highly Sensitive, Calibration-Free WM-DAS Method for Recovering Absorbance—Part I: Theoretical Analysis." Sensors 20, no. 3 (2020): 681. http://dx.doi.org/10.3390/s20030681.

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The absorbance is of great importance in the tunable diode laser absorption spectroscopy (TDLAS) as it contains information of both gas properties and spectroscopic parameters. A novel, calibration-free wavelength modulation-direct absorption spectroscopy (WM-DAS) is proposed and experimentally verified in this two-part paper. This method combines the capability of absorbance measurement from DAS and the advantages of enhanced noise rejection and high sensitivity from WMS. In this Part I, we focus on the full theoretical basis and procedures of this method from the following three aspects: the
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Thèses sur le sujet "Noice spectroscopy"

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Costantino, Mauro. "Low-frequency noise spectroscopy as an effective tool for electric transport analysis." Doctoral thesis, Universita degli studi di Salerno, 2018. http://elea.unisa.it:8080/xmlui/handle/10556/4375.

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2016 - 2017<br>In this work, several experiments and analyses performed by means of noise spectroscopy, on a broad typology of materials and compounds, are presented. Structural, DC electrical transport and noise properties are exposed for each investigated sample, and theoretical models and possible explanations of the experimental results are given to unravel physical phenomena. In particular, two distinct types of iron-chalcogenide superconductors are investigated, in their pristine and aged state, suggesting the more likely mechanism which generates the resistance fluctuations and resortin
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Pedurand, Richard. "Instrumentation for Thermal Noise Spectroscopy." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1356.

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La résolution des interféromètres gravitationnels est limitée par le mouvement Brownien - ou bruit thermique - de leurs miroirs dans la partie centrale de leur bande de détection, entre 10Hz et 1kHz. La répartition en fréquence de ce bruit thermique est dictée par les mécanismes de dissipation d'énergie mécanique à l'origine de cette vibration aléatoire, en accord avec le théorème fluctuation-dissipation. Cette dissipation provient principalement des revêtements optiques déposés sur les miroirs pour leur donner leur réflectivité. Dans le but de réduire le bruit thermique, une nouvelle générati
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Liu, Shikang. "Spin noise spectroscopy in metatable helium." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASP051.

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Cette thèse porte principalement sur la spectroscopie de bruit de spin de l'hélium métastable.Nous rapportons pour la première fois dans cette thèse la mesure du bruit de spin spontané d'un ensemble d'atomes d'hélium métastable en utilisant la spectroscopie de bruit de spin non invasive.Nous utilisons un laser hors résonance pour étudier les fluctuations aléatoires des sous-niveaux Zeeman du niveau métastable de l'hélium sous un champ magnétique relativement faible d'environ 1 Gauss. De plus, nous examinons les changements dans le spectre lorsque la sonde s'approche de la résonance.Nous étudio
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Nafaa, Beya. "Etude du bruit électrique basse fréquence dans des technologies CMOS avancées." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC273/document.

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Les travaux réalisés pendant cette thèse se focalisent sur l'étude de transistors double grille UTBOX complètement délpétés fabriqués pour le nœud technologique 16 nm. Les performances de ces composants en courant continu et en fonction de la température ont été évaluées. Les pièges localisés dans le film de silicium ont été identifiés à l’aide de la spectroscopie de bruit basse fréquence, donnant ainsi la possibilité d'évaluer les étapes de fabrications afin de les optimiser. Un pic inhabituel de transconductance a été observé dans les caractéristiques de transfert obtenues à faibles températ
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Sung, Youngkyu. "Non-Gaussian noise spectroscopy with superconducting qubits." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120365.

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Thesis: S.M. in Computer Science and Engineering, Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2018.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 91-95).<br>Most quantum control and quantum error-correction protocols assume that the noise causing decoherence is described by Gaussian statistics. However, the Gaussianity assumption break
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Vartabi, Kashanian Samir. "Spectroscopie de bruit avec de grands nuages d'atomes froids." Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4059/document.

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Nuage d'atomes de rubidium refroidi par laser. Ces mesures fournissent des informations sur la sourceet sur le milieu de propagation. Je considère une configuration particulière en transmission, le laserse propageant au travers du nuage atomique. Cette géométrie est pertinente pour étudier différentespropriétés, comme le mouvement des atomes. Cependant, le bruit intrinsèque du laser a unecontribution importante sur les spectres de bruit. Ce bruit technique peut alors devenir gênant pourextraire le signal étudié et une bonne compréhension du phénomène est donc essentielle.Expérimentalement, les
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Dang, Dung Do. "Tuneable Diode Laser Absorption Spectroscopy with Optical Fiber : Noise Analysis and Noise Reduction." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13089.

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A prototype of a fiber based absorptionspectroscopy instrument is built. A single mode fiber pigtailDistributed Feedback laser (DFB) is used to scan a known$mbox{NH}_3$ absorption line near $1512nm$ ($6614cm^{-1}$). $2mm$diameter InGaAs PIN photodiodes are used to convert the light signalto electrical signals by use of special designed transimpedanceamplifiers. Laser modulation, coherent detection at twice themodulation frequency (second harmonic detection), other electronics,and digital signal processing are provided by Norsk Elektrooptikk.bigskip The DFB laser from NEL (NLK1S5EAAA) delivers
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Chen, Zilong 1981. "Towards qubit noise spectroscopy by quantum bang-bang control." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/32721.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, June 2004.<br>Includes bibliographical references (p. 89-91).<br>Quantum bang-bang control is a method of suppressing decoherence in qubits [VKL99, VL98]. To date, mathematically rigorous treatments of quantum bang-bang control offered little intuition. To complement existing approaches and to seek better understanding, I present intuitive pictures to think about quantum bang-bang control. In addition, I develop a formalism for treating phase noise moments of a qubit under quantum bang-bang control. Although the desired pu
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Žáčik, Michal. "Šumová spektroskopie pro biologii." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219949.

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This thesis contains glossary topic of spectroscopic measurement methods in broad bands of frequency. There is designed experimental measurement method for simple samples and biological samples measurements for noise spectroscopy in frequency range of 0,1 – 6 GHz, using broadband noise generator. There is realized the workplace and the measurement method is verified by measuring on selected samples. Measurements a displayed and analyzed.
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程曦敏 and Hei-man Anita Ching. "Detector noise reduction in positron doppler broadening related spectroscopy systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31225846.

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Livres sur le sujet "Noice spectroscopy"

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Florian, Mansfeld, Huet F, Mattos O. R, and Electrochemical Society Corrosion Division, eds. New trends in electrochemical impedance spectroscopy (EIS) and electrochemical noise analysis (ENA): Proceedings of the international symposium. The Electrochemical Society, Inc., 2001.

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Cottis, Robert. Electrochemical impedance and noise. NACE International, 1999.

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Glazov, M. M. Fluctuations of Electron and Nuclear Spins. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198807308.003.0010.

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In thermal equilibrium, both electron and nuclear spin systems are unpolarized on average, but characterized by nonzero fluctuations. These fluctuations are inevitable due to the quantum-mechanical nature of spin. The physics of spin fluctuations in electron and nucelar systems is studied in this chapter. The intensity and dynamics of these inevitable stochastic fluctuations of spins contain information on spin relaxation and decoherence times, spin precession period, and interactions in spin systems. The theory of spin fluctuations in semiconductor nanosystems as well as experimental advances
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Wichner, Brian D. Conversion of laser phase noise to amplitude noise in a Lummer-Gehrcke interferometer and in oxygen gas. 1998.

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(Editor), Barry C. Syrett, ed. Corrosion Testing Made Easy: Impedance & Noise Analysis. Natl Assn of Corrosion, 2002.

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Hawkes, Peter W. Advances in Electronics and Electron Physics (Advances in Imaging and Electron Physics). Academic Press, 1990.

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Hawkes, Peter W. Advances in Electronics and Electron Physics (Advances in Imaging and Electron Physics). Academic Press, 1988.

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Hawkes, Peter W. Advances in Electronics and Electron Physics (Advances in Imaging and Electron Physics). Academic Press, 1990.

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Hawkes, Peter W. Advances in Electronics and Electron Physics (Advances in Imaging and Electron Physics). Academic Press, 1991.

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Hawkes, Peter W. Advances in Electronics and Electron Physics (Advances in Imaging and Electron Physics). Academic Press, 1986.

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Chapitres de livres sur le sujet "Noice spectroscopy"

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Schimel, David, Philip A. Townsend, and Ryan Pavlick. "Prospects and Pitfalls for Spectroscopic Remote Sensing of Biodiversity at the Global Scale." In Remote Sensing of Plant Biodiversity. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-33157-3_19.

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AbstractImaging spectroscopy is a powerful new approach for observing aspects of the biological diversity of the Earth, conveying information about plant functional traits, habitat, and plant diversity itself. For decades, spectroscopic data suitable for this application have mainly been collected by aircraft. But in the next decade, global coverage from space by high-quality spectroscopic data will become available, preceded by instruments providing “global access”—not wall-to-wall coverage but data from almost anywhere in the world. For decades, scientists have experimented with and discusse
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Kim, Jungsang, Seema Somani, and Yoshihisa Yamamoto. "Sub-Shot-Noise FM Noise Spectroscopy." In Nonclassical Light from Semiconductor Lasers and LEDs. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56814-5_8.

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Giacobino, E., C. Fabre, H. Heidmann, R. Horowicz, S. Reynaud, and G. Camy. "Squeezing Intensity Noise on Laser-like Beams." In Laser Spectroscopy VIII. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-540-47973-4_40.

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Kim, Jungsang, Seema Somani, and Yoshihisa Yamamoto. "Sub-Shot-Noise FM Spectroscopy." In Nonclassical Light from Semiconductor Lasers and LEDs. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56814-5_7.

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Asai, Yoshihiro. "Vibronic Spectroscopy Using Current Noise." In Quantum Theory of Transport Properties of Single Molecules. Jenny Stanford Publishing, 2024. http://dx.doi.org/10.1201/9781003055952-13.

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Chu, Steven. "High-Noise, Low-Resolution Spectroscopy." In Laser Physics at the Limits. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04897-9_8.

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Heidt, Alexander M., Dirk-Mathys Spangenberg, Anupamaa Rampur, Alexander Hartung, and Hartmut Bartelt. "All-Normal Dispersion Fiber Supercontinuum: Principles, Design, and Applications of a Unique White Light Source." In The Supercontinuum Laser Source. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06197-4_6.

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AbstractUltrafast and low-noise supercontinuum (SC) sources based on all-normal dispersion (ANDi) fibers are emerging as key-enabling technology for new applications in spectroscopy, microscopy, and ultrafast photonics. In this chapter we review the fundamental physics, fiber designs, and applications of this unique white light source.
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Aldén, M., P. E. Bengtsson, H. Edner, S. Kröll, D. Nilsson, and D. Sandell. "The Rotational Dual Broadband Approach and Noise Considerations in CARS Spectroscopy." In Laser Spectroscopy VIII. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-540-47973-4_99.

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Meyer-Vernet, Nicole, Sang Hoang, Karine Issautier, et al. "Measuring plasma parameters with thermal noise spectroscopy." In Measurement Techniques in Space Plasmas: Fields. American Geophysical Union, 1998. http://dx.doi.org/10.1029/gm103p0205.

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Fort, Bernard. "On High Signal to Noise Spectroscopy with CCDs." In The Impact of Very High S/N Spectroscopy on Stellar Physics. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2937-1_10.

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Actes de conférences sur le sujet "Noice spectroscopy"

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Jia, Tonghua, Guangxu Cheng, Sheng Chen, and Jiacong Yang. "Research on decoupling Cl2 and PM slow-changing noise in open-path UV-DOAS detection." In Optical Spectroscopy and Applications, edited by Zongyin Yang. SPIE, 2024. https://doi.org/10.1117/12.3045656.

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Herman, Daniel I., Mathieu Walsh, Molly Kate Kreider, et al. "Quantum-Enhanced Dual-Comb Spectroscopy Beyond the Shot Noise Limit." In 3D Image Acquisition and Display: Technology, Perception and Applications. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/3d.2024.jtu5a.3.

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Soliton squeezing suppresses the amplitude noise of a frequency comb by &gt;3 dB. Dual-comb interferometry enables mode-resolved spectroscopy of H2S with signal-to-noise ratio ∼2.6 dB beyond the shot noise limit.
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Jiao, Jie, Sidy Ndiongue, Dylan Dao, Maria A. Betty, Lindsay Kuramoto, and Ofer Levi. "Speckle noise reduction in coherent spatial frequency domain imaging." In Optical Tomography and Spectroscopy of Tissue XVI, edited by Sergio Fantini and Paola Taroni. SPIE, 2025. https://doi.org/10.1117/12.3043327.

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Cicek, Erdem, Jason L. Johnson, Ant Ural, Gijs Bosman, Massimo Macucci, and Giovanni Basso. "Defect Noise Spectroscopy Results for GaN Nanowires." In NOISE AND FLUCTUATIONS: 20th International Conference on Noice and Fluctuations (ICNF-2009). AIP, 2009. http://dx.doi.org/10.1063/1.3140404.

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Macku, R., P. Koktavy, P. Skarvada, et al. "Diagnostics of Forward Biased Silicon Solar Cells Using Noise Spectroscopy." In NOISE AND FLUCTUATIONS: 20th International Conference on Noice and Fluctuations (ICNF-2009). AIP, 2009. http://dx.doi.org/10.1063/1.3140416.

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Lakeev, Sergey G., Nina N. Peschanskaya, Vitalii V. Shpeiizman, et al. "Flickering Noise Spectroscopy as a Powerful Tool for Investigation the Dynamics of the Deformation Processes in Solids." In NOISE AND FLUCTUATIONS: 20th International Conference on Noice and Fluctuations (ICNF-2009). AIP, 2009. http://dx.doi.org/10.1063/1.3140417.

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Sparapassi, Giorgia, Jonathan Owen Tollerud, Filippo Glerean, and Daniele Fausti. "Noise Correlation Spectroscopy for spectroscopic measurements of low energy modes." In CLEO: Applications and Technology. OSA, 2018. http://dx.doi.org/10.1364/cleo_at.2018.ath3o.7.

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Orrit, M., and J. Bernard. "Single Molecule Spectroscopy : Photon Correlation And Electric Field Effect." In Spectral Hole-Burning and Luminescence Line Narrowing: Science and Applications. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/shbl.1992.ma3.

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The first single molecule detection, by Moerner and colleagues [1] in the system pentacene in p-terphenyl crystal via absorption, has been extremely difficult due to photon noise. In our paper [2], we demonstrated for the first time single molecule lines in fluorescence excitation spectra of the same system. This much simpler method provides a dramatic improvement of the signal/noise ratio. It opened the way for a true single molecule spectroscopy (SMS). Since then, several experiments performed using this technique [3-8] have shown the power and promise of this new spectroscopic method. In th
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Cruz, Maria-Luisa. "Layer-oriented CGH with attenuated speckle noise in focused-layers and reduced defocus noise." In Applied Industrial Spectroscopy. OSA, 2021. http://dx.doi.org/10.1364/ais.2021.jtu5a.24.

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Koktavy, Bohumil, and Pavel Koktavy. "Noise Spectroscopy of Mechanically Stressed Insulating Materials." In NOISE AND FLUCTUATIONS: 19th International Conference on Noise and Fluctuations; ICNF 2007. AIP, 2007. http://dx.doi.org/10.1063/1.2759687.

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Rapports d'organisations sur le sujet "Noice spectroscopy"

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Roy, Dibyendu, Yan Li, Alex Greilich, Yu Pershin, Avadh B. Saxena, and Nikolai Sinitsyn. Spin noise spectroscopy of quantum dot molecules. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1079572.

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Buckingham, Michael J. Deep-Water Ambient Noise Profiling; Marine Sediment Acoustics; and Doppler Geo-Acoustic Spectroscopy. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada542068.

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Buckingham, Michael J. Deep-Water Ambient Noise Profiling; Marine Sediment Acoustics; and Doppler Geo-Acoustic Spectroscopy. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada574805.

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