50 research outputs found
Π‘ΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Π²Π·Π°ΠΈΠΌΠ½ΠΎΡΡΠΈ Π΄Π»Ρ ΠΈΠ½ΡΠ΅ΡΡΠ΅ΡΠ΅Π½ΡΠΈΠΎΠ½Π½ΡΡ ΠΏΠΎΠΊΡΡΡΠΈΠΉ
By analyzing the wave equations, the coincidence of the energy reflection and transmission coefficients for the s- and p-polarization waves is herein substantiated when they are incident on the interference coating from opposite directions. The coating can be characterized by an arbitrary spatial profile of the refractive index, the limiting condition is the absence of optical losses in it. Reciprocity relations are obtained for the energy reflection and transmission coefficients of natural light for a structure in the form of a plane-parallel dielectric plate with interference coatings on its opposite sides. It is shown that when a structure with an absorbing plate is illuminated in opposite directions, the energy reflection coefficients can differ, while the energy transmission coefficients always coincide. Reciprocity relations are applied to the calculation of broadband antireflective interference coatings consisting of alternate layers Nb2O5 and SiO2 deposited on a polycarbonate plate. As a result, their correctness is confirmed and it is shown that the optimized antireflection two-sided interference coating provides approximately a five times lower averaged energy reflection coefficient compared to the optimized one-sided coating.Β ΠΡΡΠ΅ΠΌ Π°Π½Π°Π»ΠΈΠ·Π° Π²ΠΎΠ»Π½ΠΎΠ²ΡΡ
ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΉ ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΎ ΡΠΎΠ²ΠΏΠ°Π΄Π΅Π½ΠΈΠ΅ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΎΠ² ΠΎΡΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΈ ΠΏΡΠΎΠΏΡΡΠΊΠ°Π½ΠΈΡ Π΄Π»Ρ Π²ΠΎΠ»Π½ s- ΠΈ p-ΠΏΠΎΠ»ΡΡΠΈΠ·Π°ΡΠΈΠΈ ΠΏΡΠΈ ΠΈΡ
ΠΏΠ°Π΄Π΅Π½ΠΈΠΈ Π½Π° ΠΈΠ½ΡΠ΅ΡΡΠ΅ΡΠ΅Π½ΡΠΈΠΎΠ½Π½ΠΎΠ΅ ΠΏΠΎΠΊΡΡΡΠΈΠ΅ ΡΠΎ Π²ΡΡΡΠ΅ΡΠ½ΡΡ
Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠΉ. ΠΠΎΠΊΡΡΡΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΠΎΠ²Π°ΡΡΡΡ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ»ΡΠ½ΡΠΌ ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π΅Π½Π½ΡΠΌ ΠΏΡΠΎΡΠΈΠ»Π΅ΠΌ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Ρ ΠΏΡΠ΅Π»ΠΎΠΌΠ»Π΅Π½ΠΈΡ, ΠΎΠ³ΡΠ°Π½ΠΈΡΠΈΠ²Π°ΡΡΠΈΠΌ ΡΡΠ»ΠΎΠ²ΠΈΠ΅ΠΌ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΎΡΡΡΡΡΡΠ²ΠΈΠ΅ Π² ΠΏΠΎΠΊΡΡΡΠΈΠΈ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΡΠ΅ΡΡ. ΠΠΎΠ»ΡΡΠ΅Π½Ρ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Π²Π·Π°ΠΈΠΌΠ½ΠΎΡΡΠΈ Π΄Π»Ρ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΎΠ² ΠΎΡΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΈ ΠΏΡΠΎΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π΅ΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠ²Π΅ΡΠ° Π΄Π»Ρ ΡΡΡΡΠΊΡΡΡΡ Π² Π²ΠΈΠ΄Π΅ ΠΏΠ»ΠΎΡΠΊΠΎΠΏΠ°ΡΠ°Π»Π»Π΅Π»ΡΠ½ΠΎΠΉ Π΄ΠΈΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½Ρ Ρ ΠΈΠ½ΡΠ΅ΡΡΠ΅ΡΠ΅Π½ΡΠΈΠΎΠ½Π½ΡΠΌΠΈ ΠΏΠΎΠΊΡΡΡΠΈΡΠΌΠΈ Π½Π° Π΅Π΅ ΠΏΡΠΎΡΠΈΠ²ΠΎΠΏΠΎΠ»ΠΎΠΆΠ½ΡΡ
ΡΡΠΎΡΠΎΠ½Π°Ρ
. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΏΡΠΈ ΠΎΡΠ²Π΅ΡΠ΅Π½ΠΈΠΈ ΡΡΡΡΠΊΡΡΡΡ Ρ ΠΏΠΎΠ³Π»ΠΎΡΠ°ΡΡΠ΅ΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½ΠΎΠΉ Π²ΠΎ Π²ΡΡΡΠ΅ΡΠ½ΡΡ
Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡΡ
ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΡ ΠΎΡΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΌΠΎΠ³ΡΡ ΡΠ°Π·Π»ΠΈΡΠ°ΡΡΡΡ, Π° ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΡ ΠΏΡΠΎΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π²ΡΠ΅Π³Π΄Π° ΡΠΎΠ²ΠΏΠ°Π΄Π°ΡΡ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠΉ Π²Π·Π°ΠΈΠΌΠ½ΠΎΡΡΠΈ Π΄Π»Ρ ΡΠΏΡΠΎΡΠ΅Π½ΠΈΡ Π²ΡΡΠΈΡΠ»Π΅Π½ΠΈΠΉ ΠΏΡΠΎΠΈΠ»Π»ΡΡΡΡΠΈΡΠΎΠ²Π°Π½ΠΎ Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ ΡΠ°ΡΡΠ΅ΡΠ° ΡΠΈΡΠΎΠΊΠΎΠΏΠΎΠ»ΠΎΡΠ½ΡΡ
ΠΏΡΠΎΡΠ²Π΅ΡΠ»ΡΡΡΠΈΡ
ΠΈΠ½ΡΠ΅ΡΡΠ΅ΡΠ΅Π½ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΠΎΠΊΡΡΡΠΈΠΉ, ΡΠΎΡΡΠΎΡΡΠΈΡ
ΠΈΠ· ΡΠ΅ΡΠ΅Π΄ΡΡΡΠΈΡ
ΡΡ ΡΠ»ΠΎΠ΅Π² Nb2O5 ΠΈ SiO2, Π½Π°Π½Π΅ΡΠ΅Π½Π½ΡΡ
Π½Π° ΠΏΠ»Π°ΡΡΠΈΠ½Ρ ΠΈΠ· ΠΏΠΎΠ»ΠΈΠΊΠ°ΡΠ±ΠΎΠ½Π°ΡΠ°. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π΅Π½Π° ΠΊΠΎΡΡΠ΅ΠΊΡΠ½ΠΎΡΡΡ ΡΡΠΈΡ
ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠΉ ΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΎΠΏΡΠΈΠΌΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ΅ ΠΏΡΠΎΡΠ²Π΅ΡΠ»ΡΡΡΠ΅Π΅ Π΄Π²ΡΡ
ΡΡΠΎΡΠΎΠ½Π½Π΅Π΅ ΠΈΠ½ΡΠ΅ΡΡΠ΅ΡΠ΅Π½ΡΠΈΠΎΠ½Π½ΠΎΠ΅ ΠΏΠΎΠΊΡΡΡΠΈΠ΅ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ ΠΏΡΠΈΠΌΠ΅ΡΠ½ΠΎ Π² 5 ΡΠ°Π· ΠΌΠ΅Π½ΡΡΠΈΠΉ ΠΏΠΎ Π²Π΅Π»ΠΈΡΠΈΠ½Π΅ ΡΡΠ΅Π΄Π½ΠΈΠΉ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ ΠΎΡΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ ΠΎΠΏΡΠΈΠΌΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΠΎΠ΄Π½ΠΎΡΡΠΎΡΠΎΠ½Π½ΠΈΠΌ ΠΏΠΎΠΊΡΡΡΠΈΠ΅ΠΌ.
Π£Π³Π»Ρ ΠΡΡΡΡΠ΅ΡΠ° Π΄Π»Ρ Π΄ΠΈΡΡΠΈΠΏΠ°ΡΠΈΠ²Π½ΠΎΠΉ ΠΏΠ»Π΅Π½ΠΎΡΠ½ΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ
The conditions of converting the reflection coefficients of plane TM or TE for a film-substrate dissipative structure are determined. As a result, the possibilities to maximize the measurement sensitivity by the THz spectroscopy method of the protein concentration in an aqueous solution are established, and the analytical solution to the inverse optical problem of determining the complex permittivity and thickness of a weakly absorbing film located on a weakly absorbing substrate is obtained.ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΡΡΠ»ΠΎΠ²ΠΈΡ ΠΎΠ±ΡΠ°ΡΠ΅Π½ΠΈΡ Π² Π½ΠΎΠ»Ρ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΎΠ² ΠΎΡΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΏΠ»ΠΎΡΠΊΠΈΡ
Π²ΠΎΠ»Π½ Π’Π, Π»ΠΈΠ±ΠΎ Π’Π ΠΏΠΎΠ»ΡΡΠΈΠ·Π°ΡΠΈΠΈ Π΄Π»Ρ Π΄ΠΈΡΡΠΈΠΏΠ°ΡΠΈΠ²Π½ΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ ΠΏΠ»Π΅Π½ΠΊΠ°βΠΏΠΎΠ΄Π»ΠΎΠΆΠΊΠ°. Π‘ ΠΈΡ
ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΌΠ°ΠΊΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΡΠ΅ΡΠ°Π³Π΅ΡΡΠΎΠ²ΠΎΠΉ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΏΡΠΎΡΠ΅ΠΈΠ½Π° Π² Π²ΠΎΠ΄Π½ΠΎΠΌ ΡΠ°ΡΡΠ²ΠΎΡΠ΅ ΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΎ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΠ±ΡΠ°ΡΠ½ΠΎΠΉ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π·Π°Π΄Π°ΡΠΈ ΠΎΠ± ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎΠΉ Π΄ΠΈΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΡΠΎΠ½ΠΈΡΠ°Π΅ΠΌΠΎΡΡΠΈ ΠΈ ΡΠΎΠ»ΡΠΈΠ½Ρ ΡΠ»Π°Π±ΠΎ ΠΏΠΎΠ³Π»ΠΎΡΠ°ΡΡΠ΅ΠΉ ΠΏΠ»Π΅Π½ΠΊΠΈ, Π½Π°Ρ
ΠΎΠ΄ΡΡΠ΅ΠΉΡΡ Π½Π° ΡΠ»Π°Π±ΠΎ ΠΏΠΎΠ³Π»ΠΎΡΠ°ΡΡΠ΅ΠΉ ΠΏΠΎΠ΄Π»ΠΎΠΆΠΊΠ΅
Patientsβ Outcome Expectations Matter in Psychological Interventions for Patients with Diabetes and Comorbid Depressive Symptoms
ROLE OF LIPIDS IN THE EFFECT OF PROSTOGLANDIN'S AND NORADRENALIN ON THE CONDUCTIVITY OF BILAYERS
Lossy mode resonances in photonic crystal fibers
The interaction effect of the fundamental mode in a special photonic crystal fiber (PCF) with a thin-film absorbing coating deposited on a surface of a fiber cladding on the optical transmission of the PCF is theoretically studied. It is shown that the transmission has a multi-peak spectrum that is determined by the resonance capture of the fundamental PCF mode energy by the coating. In some cases, this capture is explained by a resonance coupling between the fundamental core mode and leaky modes of the coating, or between the fundamental PCF mode and cladding modes located between PCF air channels and the coating. Examples are presented of using this effect to develop fiber-optic sensors of refractive index or pressure, and to sense a nanoscale adsorption layer of ammonia molecules deposited on a coating surface contacting air