Nonlinear spectral blueshift in semiconductor optical amplifiers [PDF]
Optics Letters, 2021 We demonstrate that spectral peak power of negatively chirped optical pulses can acquire a blueshift after amplification by a semiconductor optical amplifier. The central wavelength of a transform limited optical pulse translates over 20 nm towards a shorter wavelength after propagation in a single-mode fiber and semiconductor optical amplifier.
Anastasia Bednyakova +3 more
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CFTs blueshift tensor fluctuations universally [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 Abstract The strong constraints of conformal symmetry cause any nearly-conformal sector to blueshift tensor fluctuations in cosmology. Hidden sectors with approximate conformal symmetry, which may be quite large, are a well-motivated extension of physics beyond the Standard Models of particle physics and cosmology.
Matthew Baumgart +2 more
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Anomalous blueshift of aperture resonance enabled by the loss of a thin film [PDF]
Scientific Reports, 2020 The substrate effects on aperture resonance have been widely studied because the resonance peak position is key for sensing, communications, and field enhancement applications. So far, the theoretical works have focused on the lossless infinite substrate
Jisoo Kyoung
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Origin of the injection-dependent emission blueshift and linewidth broadening of III-nitride light-emitting diodes [PDF]
AIP Advances, 2022 III-nitride light-emitting diodes (LEDs) exhibit an injection-dependent emission blueshift and linewidth broadening that is severely detrimental to their color purity.
Nick Pant +5 more
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Redshifts and blueshifts of OH vibrations [PDF]
International Journal of Quantum Chemistry, 1993 AbstractAb initio calculations of potential energy, dipole moment, equilibrium OH distance, force constants, and anharmonic frequencies, and correlation between these quantities, are presented for a water molecule and an OH− ion in a uniform electric field of varying field strength.
Kersti Hermansson
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Existence of blueshifts in quasispherical Szekeres spacetimes [PDF]
Physical Review D, 2016 In Lema\^ tre -- Tolman (L--T) models, light rays emitted \textit{radially} at the Big Bang (BB) at such radial coordinates $r$ where the bang-time function $t_B(r)$ has $\dril {t_B} r \neq 0$ reach every observer with \textit{infinite blueshift}, $z = -1$. Consequently, there exist rays, emitted soon after the BB, that will reach later observers with
Andrzej Krasiński
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Gravitational redshift/blueshift of light emitted by geodesic test particles, frame-dragging and pericentre-shift effects, in the Kerr–Newman–de Sitter and Kerr–Newman black hole geometries [PDF]
European Physical Journal C: Particles and Fields, 2021 We investigate the redshift and blueshift of light emitted by timelike geodesic particles in orbits around a Kerr–Newman–(anti) de Sitter (KN(a)dS) black hole.
G. V. Kraniotis
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Heat flux induced blueshift of dominant phonon wavelength and its impact on thermal conductivity [PDF]
AIP Advances, 2017 The concept of dominant phonon wavelength is investigated in systems submitted to a heat flux at low temperatures. Using spectral energy distributions, a treatment of two-dimensional and three-dimensional structures is conducted in parallel.
Aymeric Ramiere +2 more
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Gravitational blueshift from a collapsing object
Physics Letters B, 2015 We discuss a counterintuitive phenomenon of classical general relativity, in which a significant fraction of the radiation emitted by a collapsing object and detected by a distant observer may be blueshifted rather than redshifted.
Lingyao Kong +2 more
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GRB 011211: An alternative interpretation of the optical and X-ray spectra in terms of blueshifts [PDF]
, 2009 The redshifts of the gamma ray burst (GRB) GRB 011211 has been determined as 2.14 from several absorption lines seen in the spectrum of its optical afterglow.
D. Basu
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