Results 71 to 80 of about 157,814 (199)

The Early Spectrophotometric Evolution of V1186 Scorpii (Nova Scorpii 2004 #1)

, 2007
We report optical photometry and optical through mid-infrared spectroscopy of the classical nova V1186 Sco. This slowly developing nova had an complex light curve with multiple secondary peaks similar to those seen in PW Vul.
A. Evans, C. C. Venturini, C. E. Woodward, D. K. Lynch, Evans A., Evans A., Fujii M., G. J. Schwarz, Hummer D. G., J. E. Lyke, J. W. Truran, Koornneef J., L. A. Helton, M. A. Greenhouse, M. F. Bode, Munari U., Osborne J., Osborne J., Osborne J., Pojmanski G., R. D. Gehrz, R. E. Williams, R. J. Rudy, R. M. Wagner, R. W. Russell, R. Zamanov, S. G. Starrfield, S. N. Shore, S. P. Eyres, Schwarz G. J., T. J. O'Brien, T. R. Geballe, T. Temim, van den Bergh S., W. Liller, Williams P. M.   +35 more
core   +1 more source

New Opportunities in Mid-Infrared Emission Control

Sensors, 2015
Tunable laser absorption spectroscopy (TLAS) has been well accepted as a preferred measurement technique for many industrial applications in recent years, especially for in situ applications. Previously, mainly near-infrared lasers have been used in TLAS
Peter Geiser
doaj   +1 more source

Mid-IR plasmon-mediated photoluminescence from gallium-doped zinc oxide bow-tie nanoantennas [PDF]

, 2016
Semiconductor devices that interact with mid-infrared (mid-IR) wavelengths have a variety of applications in communications, sensing, and defense. However, most mid-IR sources, particularly incoherent emitters, are practically limited as a result of ...
Dev, Sukrith U
core  

Electro-optical switching in a nonlinear metasurface

npj Nanophotonics
Nonlinear metasurfaces are multifunctional photonic elements that generate and control light, enabling multiple proof-of-principle applications, such as in nonlinear holography, beam shaping, and nanoscale sources of entangled photon pairs. Active tuning
Matthew D. Feinstein, Alexander Andronikides, Euclides Almeida   +2 more
doaj   +1 more source

A Diverse, Overlooked Population of Type Ia Supernovae Exhibiting Mid-infrared Signatures of Delayed Circumstellar Interaction

The Astrophysical Journal Letters
Type Ia supernovae (SNe Ia) arise from the thermonuclear explosions of white dwarfs in multiple-star systems. A rare subclass of SNe Ia exhibit signatures of interaction with circumstellar material (CSM), allowing for direct constraints on companion ...
Geoffrey Mo, Kishalay De, Eli Wiston, Nayana A. J., Raffaella Margutti, Danielle Frostig, Jesper Sollerman, Yashvi Sharma, Takashi J. Moriya, Kevin B. Burdge, Jacob Jencson, Viraj R. Karambelkar, Nathan P. Lourie   +12 more
doaj   +1 more source

High-Power Mid-Infrared Supercontinuum Light Source Based on High-Quality Fusion of Large-Diameter Silica Fiber and Fluorotellurite Fiber

IEEE Photonics Journal
Mid-infrared supercontinuum (MIR-SC) light sources have garnered significant attention in fields such as material detection and national defence. Currently, mid-infrared lasers suffer from issues including low output power, a narrow spectral range, and a
Xuan Wang, Ying Yang, Chuanfei Yao, Jichen Pan, Yamin Liu, Xuelian Yang, Pingxue Li   +6 more
doaj   +1 more source

Phase Lags in the Optical-Infrared Light Curves of AGB Stars

, 2005
To search for phase lags in the optical-infrared light curves of asymptotic giant branch stars, we have compared infrared data from the COBE DIRBE satellite with optical light curves from the AAVSO and other sources. We found 17 examples of phase lags in
Moffett, Amanda J., Price, Stephan D., Smith, Beverly J.   +2 more
core   +2 more sources

2 μm Broadband Amplification in Tapered Fiber Devices Using PbS Quantum Dots

Photonics
Broadband optical amplifiers operating in the 2 μm spectral region are critical for advancing mid-infrared photonic systems, yet achieving high gain with low noise remains challenging.
Deen Wang, Siyu Wan, Chenxi Wang, Zhiyang Jin, Xiaolan Sun, Alan R. Kost, Seppo Honkanen   +6 more
doaj   +1 more source

Extending PLE models into the mid-IR, far-IR & sub-mm

, 2010
Simple pure luminosity evolution (PLE) models, in which galaxies brighten at high redshift due to increased star-formation rates (SFRs), are known to provide a good fit to the colours and number counts of galaxies throughout the optical and near-infrared.
Adelberger, Alexander, Allamandola, Babbedge, Barger, Baugh, Baugh, Bernardi, Bower, Brown, Bruzual, Bruzual, Busswell, Béthermin, Capak, Chabrier, Chapin, Chary, Cimatti, Cimatti, Cohen, Cole, Cool, Coppin, Cowie, Daddi, Dale, De Lucia, Dekel, Devlin, Dole, Draine, Dunlop, Dunlop, Dunne, Elbaz, Farrah, Fixsen, Franx, Glazebrook, Gonzalez-Perez, Granato, Gregorich, Hauser, Hauser, Heydon-Dumbleton, Hill, Huang, Imai, Iovino, Kang, Kennicutt, Kong, Kümmel, Lacey, Lagache, Lagache, Leger, Lonsdale, Maihara, McCracken, McCracken, McLeod, Metcalfe, Metcalfe, Metcalfe, Michael D. Hill, Nguyen, Oliver, Page, Patanchon, Pilbratt, Pope, Pozzetti, Puget, Pérez-González, Reddy, Roche, Rowan-Robinson, Rowan-Robinson, Rowan-Robinson, Salpeter, Saracco, Scalo, Shanks, Smail, Soifer, Somerville, Steidel, Steidel, Stern, Strateva, Thomas, Tinsley, Tom Shanks, Trager, Väisänen, Wake, Wake, Wirth, Yun   +100 more
core   +1 more source

Synthesizing gas-filled anti-resonant hollow-core fiber Raman lines enables access to the molecular fingerprint region

Nature Communications
The synthesis of multiple narrow optical spectral lines, precisely and independently tuned across the near- to mid-infrared region, is a pivotal research area that enables selective and real-time detection of trace gas species within complex gas mixtures.
Yazhou Wang, Lujun Hong, Cuiling Zhang, Joseph Wahlen, J. E. Antonio-Lopez, Manoj K. Dasa, Abubakar I. Adamu, Rodrigo Amezcua-Correa, Christos Markos   +8 more
doaj   +1 more source