Nonlinear spectroscopy in astronomy: assignement of diffuse interstellar absorption bands to L(α) -induced, two-photon absorption by H2 molecules

Abstract Two-photon excited near-infrared fluorescence materials have garnered considerable attention because of their superior optical penetration, higher spatial resolution, and lower optical scattering compared with other optical materials. Herein, a convenient and efficient supramolecular approach is used to synthesize a two-photon excited near-infrared emissive co-crystalline material. A naphthalenediimide-based triangular macrocycle and coronene form selectively two co-crystals. The triangle-shaped co-crystal emits deep-red fluorescence, while the quadrangle-shaped co-crystal displays deep-red and near-infrared emission centered on 668 nm, which represents a 162 nm red-shift compared with its precursors. Benefiting from intermolecular charge transfer interactions, the two co-crystals possess higher calculated two-photon absorption cross-sections than those of their individual constituents. Their two-photon absorption bands reach into the NIR-II region of the electromagnetic spectrum. The quadrangle-shaped co-crystal constitutes a unique material that exhibits two-photon absorption and near-infrared emission simultaneously. This co-crystallization strategy holds considerable promise for the future design and synthesis of more advanced optical materials.

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Nonlinear Spectroscopy on a Single Quantum System: Two-Photon Absorption of a Single Molecule

Science ◽

10.1126/science.271.5256.1703 ◽

1996 ◽

Vol 271 (5256) ◽

pp. 1703-1705 ◽

Cited By ~ 57

Author(s):

T. Plakhotnik ◽

D. Walser ◽

M. Pirotta ◽

A. Renn ◽

U. P. Wild

Keyword(s):

Quantum System ◽

Single Molecule ◽

Nonlinear Spectroscopy ◽

Photon Absorption ◽

Single Quantum ◽

Two Photon Absorption ◽

Two Photon

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Impact of two-photon absorption on second-harmonic generation in CdTe as probed by wavelength-dependent Z-scan nonlinear spectroscopy

Journal of the Optical Society of America B ◽

10.1364/josab.30.002292 ◽

2013 ◽

Vol 30 (8) ◽

pp. 2292 ◽

Cited By ~ 19

Author(s):

J. I. Jang ◽

S. Park ◽

D. J. Clark ◽

F. O. Saouma ◽

D. Lombardo ◽

...

Keyword(s):

Second Harmonic Generation ◽

Harmonic Generation ◽

Second Harmonic ◽

Nonlinear Spectroscopy ◽

Photon Absorption ◽

Two Photon Absorption ◽

Two Photon

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Predictions of Novel Two-Photon Absorption Bands in Fluorescent Proteins

The Journal of Physical Chemistry B ◽

10.1021/jp075545v ◽

2007 ◽

Vol 111 (50) ◽

pp. 14043-14050 ◽

Cited By ~ 34

Author(s):

Riccardo Nifosì ◽

Yi Luo

Keyword(s):

Fluorescent Proteins ◽

Photon Absorption ◽

Absorption Bands ◽

Two Photon Absorption ◽

Two Photon

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Two-Photon Absorption Circular Dichroism: A New Twist in Nonlinear Spectroscopy

Chemistry - A European Journal ◽

10.1002/chem.200902286 ◽

2010 ◽

Vol 16 (11) ◽

pp. 3504-3509 ◽

Cited By ~ 57

Author(s):

Carlos Toro ◽

Leonardo De Boni ◽

Na Lin ◽

Fabrizio Santoro ◽

Antonio Rizzo ◽

...

Keyword(s):

Circular Dichroism ◽

Nonlinear Spectroscopy ◽

Photon Absorption ◽

Two Photon Absorption ◽

Two Photon ◽

Circular Dichroïsm

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Self-Assembled Heterometallic Complexes Showing Enhanced Two-Photon Absorption and Their Distribution in Living Cells

New Journal of Chemistry ◽

10.1039/d0nj05219a ◽

2021 ◽

Author(s):

Qin Jiang ◽

Xinda Yang ◽

Pan Xiang ◽

Marta Dudek ◽

Katarzyna Matczyszyn ◽

...

Keyword(s):

Self Assembly ◽

Living Cells ◽

Photon Absorption ◽

Heterometallic Complexes ◽

Absorption Bands ◽

Visible Absorption ◽

Two Photon Absorption ◽

Two Photon ◽

Self Assembled

Heterometallic binuclear Ru-Pt and trinuclear Zn-Pt complexes were prepared via self-assembly by attaching PtII-tpy (tpy = 2,2’:6’,2”-terpyridine) onto RuII-tpy and ZnII-bis(tpy) moiety. The visible absorption bands for Ru-Pt complexes are...

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