Results 21 to 30 of about 372,055 (343)

Optical MEMS for advanced spectrometers [PDF]

, 2022
S.117-118Optical MEMS based spectrometers capable to perform time resolved measurements from VIS to NIR are presented. They are based on high frequency scanning gratings with V-groove-structure and translational mirrors for Fourier-Transform ...
Kenda, A., Schenk, H., Zimmer, F., Grüger, H., Scherf, W.   +4 more
core   +1 more source

Integrated photodetectors for compact Fourier-transform waveguide spectrometers

Nature Photonics, 2022
Extreme miniaturization of infrared spectrometers is critical for their integration into next-generation consumer electronics, wearables and ultrasmall satellites.
Matthias J. Grotevent, S. Yakunin, Dominik Bachmann, C. Romero, J. R. Vázquez de Aldana, Matteo Madi, Michel Calame, M. Kovalenko, I. Shorubalko   +8 more
semanticscholar   +1 more source

On-chip spectrometers using stratified waveguide filters

Nature Communications, 2021
We present an ultra-compact single-shot spectrometer on silicon platform for sparse spectrum reconstruction. It consists of 32 stratified waveguide filters (SWFs) with diverse transmission spectra for sampling the unknown spectrum of the input signal and
Ang Li, Y. Fainman
semanticscholar   +1 more source

Recent Advances in Portable and Handheld NIR Spectrometers and Applications in Milk, Cheese and Dairy Powders

Foods, 2021
Quality and safety monitoring in the dairy industry is required to ensure products meet a high-standard based on legislation and customer requirements. The need for non-destructive, low-cost and user-friendly process analytical technologies, targeted at ...
Yuanyuan Pu, D. Pérez-Marín, N. O'Shea, A. Garrido-Varo   +3 more
semanticscholar   +1 more source

Sequential fusion of information from two portable spectrometers for improved prediction of moisture and soluble solids content in pear fruit.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2021
Near infrared (NIR) spectroscopy allows rapid estimation of quality traits in fresh fruit. Several portable spectrometers are available in the market as a low-cost solution to perform NIR spectroscopy. However, portable spectrometers, being lower in cost
P. Mishra, F. Marini, Bastiaan Brouwer, J. Roger, A. Biancolillo, E. Woltering, E. Echtelt   +6 more
semanticscholar   +1 more source

Diffuse Reflectance Spectrophotometers Based on C12880MA and C11708MA Mini-Spectrometers Hamamatsu

Приборы и методы измерений, 2022
Diffuse reflection spectroscopy with spatial resolution is a promising direction of non-destructive control of the properties of a number of scattering fine-dispersed materials, including food products.
V. A. Firago, N. V. Levkovich, K. I. Shuliko   +2 more
doaj   +1 more source

The Radiance Standard RASTA of DLR's calibration facility for airborne imaging spectrometers [PDF]

, 2012
The German Aerospace Center (DLR) operates the Calibation Home Base (CHB) as a facility for the calibration of airborne imaging spectrometers and for field spectrometers.
T. Schwarzmaier, A. Baumgartner, K. Lenhard, Gege, Peter, P. Gege, Lenhard, Karim, Baumgartner, Andreas, Köhler, Claas, Schwarzmaier, Thomas, C. Köhler   +9 more
core   +1 more source

Precise Blaze Angle Adjustment of Echelle Grating by Self-Shadowing Rotating Mask

IEEE Photonics Journal, 2018
Angular precision of 0.1° for the blaze angle of echelle gratings is an important technical requirement for spectral instruments with echelle gratings.
Bin Sheng, Jiaojiao Fan, Yuanshen Huang, Junjun Guo, Haoyu Lyu, Dawei Zhang, Songlin Zhuang   +6 more
doaj   +1 more source

The Miniball spectrometer [PDF]

The European Physical Journal A, 2013
The Miniball germanium detector array has been operational at the REX (Radioactive ion beam EXperiment) post accelerator at the Isotope Separator On-Line facility ISOLDE at CERN since 2001. During the last decade, a series of successful Coulomb excitation and transfer reaction studies have been performed with this array, utilizing the unique and high ...
Cocolios, Thomas, Warr, N., Van de Walle, J., Albers, M., Ames, F., Bastin, B., Bauer, C., Bildstein, V., Blazhev, A., Bönig, S., Bree, N., Bruyneel, B., Butler, P. A., Cederkäll, J., Clément, E., Cocolios, T. E., Davinson, T., De Witte, H., Delahaye, P., DiJulio, D. D., Diriken, J., Eberth, J., Ekström, A., Elseviers, J., Emhofer, S., Fedorov, D. V., Fedosseev, V. N., Franchoo, S., Fransen, C., Gaffney, L. P., Gerl, J., Georgiev, G., Gernhäuser, R., Grahn, T., Habs, D., Hess, H., Hurst, A. M., Huyse, M., Ivanov, O., Iwanicki, J., Jenkins, D. G., Jolie, J., Kesteloot, N., Kester, O., Köster, U., Krauth, M., Kröll, T., Krücken, R., Lauer, M., Leske, J., Lieb, K. P., Lutter, R., Maier, L., Marsh, B. A., Mücher, D., Münch, M., Niedermaier, O., Pakarinen, J., Pantea, M., Pascovici, G., Patronis, N., Pauwels, D., Petts, A., Pietralla, N., Raabe, R., Rapisarda, E., Reiter, P., Richter, A., Schaile, O., Scheck, M., Scheit, H., Schrieder, G., Schwalm, D., Seidlitz, M., Seliverstov, M., Sieber, T., Simon, H., Speidel, K. H., Stahl, C., Stefanescu, I., Thirolf, P. G., Thomas, H. G., Thürauf, M., Van Duppen, P., Voulot, D., Wadsworth, R., Walter, G., Weißhaar, D., Wenander, F., Wiens, A., Wimmer, K., Wolf, B. H., Woods, P. J., Wrzosek-Lipska, K., Zell, K. O.   +94 more
openaire   +4 more sources

Broadband miniaturized spectrometers with a van der Waals tunnel diode [PDF]

Nature Communications
Here, the authors report a high-performance broadband spectrometer based on a van der Waals heterostructure tunnel diode containing MoS_2 and and black phosphorus, leveraging their electrically tunable photoresponse and advanced computational algorithms ...
Md Gius Uddin, Susobhan Das, Abde Mayeen Shafi, Lei Wang, Xiaoqi Cui, F. Nigmatulin, F. Ahmed, A. Liapis, Weiwei Cai, Zongyin Yang, H. Lipsanen, T. Hasan, H. Yoon, Zhipei Sun   +13 more
semanticscholar   +1 more source