Igor Vurgaftman
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Explore the profile of Igor Vurgaftman including associated specialties, affiliations and a list of published articles.
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33
Citations
303
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Recent Articles
1.
Chen T, Markus C, Ober D, Sterczewski L, Huang Y, Lisano M, et al.
J Phys Chem A
. 2025 Jan;
129(5):1452-1458.
PMID: 39854623
We present direct frequency comb cavity ring-down spectroscopy with Vernier filtering as a straightforward approach to sensitive and multiplexed trace gas detection. The high finesse cavity acts both to extend...
2.
Pyles C, Simpkins B, Vurgaftman I, Owrutsky J, Dunkelberger A
J Chem Phys
. 2024 Dec;
161(23).
PMID: 39692498
Significant debate surrounds the origin of nonlinear optical responses from cavity-coupled molecular vibrations. Several groups, including our own, have previously assigned portions of the nonlinear response to polariton excited-state transitions....
3.
Canedy C, Jackson E, Espinola R, Pauli M, Auxier J, Kim C, et al.
Opt Express
. 2023 Oct;
31(21):35225-35244.
PMID: 37859259
We report a resonant cavity infrared detector (RCID) with an InAsSb/InAs superlattice absorber with a thickness of only ≈ 100 nm, a 33-period GaAs/AlGaAs distributed Bragg reflector bottom mirror, and...
4.
Simpkins B, Dunkelberger A, Vurgaftman I
Chem Rev
. 2023 Apr;
123(8):5020-5048.
PMID: 37018158
Here, we review the design of optical cavities, transient and modulated responses, and theoretical models relevant to vibrational strong coupling (VSC). While planar Fabry-Perot cavities remain the most common choice...
5.
Simpkins B, Yang Z, Dunkelberger A, Vurgaftman I, Owrutsky J, Xiong W
J Phys Chem Lett
. 2023 Feb;
14(4):983-988.
PMID: 36727272
This Viewpoint responds to the analysis of 2D IR spectra of vibration cavity polaritons in the study reported in (Duan et al. , 12, 11406). That report analyzed 2D IR...
6.
Dunkelberger A, Simpkins B, Vurgaftman I, Owrutsky J
Annu Rev Phys Chem
. 2022 Jan;
73:429-451.
PMID: 35081324
Molecular polaritons result from light-matter coupling between optical resonances and molecular electronic or vibrational transitions. When the coupling is strong enough, new hybridized states with mixed photon-material character are observed...
7.
Vurgaftman I, Simpkins B, Dunkelberger A, Owrutsky J
J Chem Phys
. 2022 Jan;
156(3):034110.
PMID: 35065567
We examine closely the differences between the densities of vibrational states of bulk, slab, and cavity polariton modes under weak and moderate inhomogeneous broadening. While existing theoretical treatments are often...
8.
Canedy C, Bewley W, Tomasulo S, Kim C, Merritt C, Vurgaftman I, et al.
Opt Express
. 2021 Nov;
29(22):35426-35441.
PMID: 34808977
The high-quality growth of midwave infrared light emitters on silicon substrates will advance their incorporation into photonic integrated circuits, and also introduce manufacturing advantages over conventional devices grown on lattice-matched...
9.
Li N, Tao L, Yi H, Kim C, Kim M, Canedy C, et al.
Opt Express
. 2021 Mar;
29(5):7221-7231.
PMID: 33726228
Midwave infrared interband-cascade light-emitting devices (ICLEDs) have the potential to improve the selectivity, stability, and sensitivity of low-cost gas sensors. We demonstrate a broadband direct absorption CH sensor with an...
10.
Meyer J, Kim C, Kim M, Canedy C, Merritt C, Bewley W, et al.
Sensors (Basel)
. 2021 Jan;
21(2).
PMID: 33467034
We describe how a midwave infrared photonic integrated circuit (PIC) that combines lasers, detectors, passive waveguides, and other optical elements may be constructed on the native GaSb substrate of an...