Incoherent Mid-Infrared Photon
Echoes With Parametrically
Downconverted Light

We present a simple method to generate mid-infrared photon echoes, using parametrically downconverted incoherent light. The photon echoes generated in this way enable the study of the dynamics of vibrations in the 1.5–4.0 μm wavelength region with subpicosecond time resolution.

Download Full-text

Generation of incoherent mid-infrared photon echoes with parametrically downconverted light

Optics Letters ◽

10.1364/ol.21.001579 ◽

1996 ◽

Vol 21 (19) ◽

pp. 1579 ◽

Cited By ~ 1

Author(s):

Sander Woutersen ◽

Mischa Bonn ◽

Marco J. P. Brugmans ◽

Uli Emmerichs ◽

Huib J. Bakker

Keyword(s):

Mid Infrared ◽

Photon Echoes ◽

Infrared Photon

Download Full-text

ULTRAFAST DEPHASING TIME MEASUREMENT IN CRESYL FAST VIOLET DOPED CELLULOSE BY PHOTON ECHOES WITH TEMPORALLY INCOHERENT LIGHT

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1985791 ◽

1985 ◽

Vol 46 (C7) ◽

pp. C7-511-C7-515

Author(s):

H. Nakatsuka ◽

M. Fujiwara ◽

R. Kuroda

Keyword(s):

Time Measurement ◽

Incoherent Light ◽

Dephasing Time ◽

Photon Echoes

Download Full-text

Simple method for mid-infrared optical frequency comb generation with dynamic offset frequency tuning

APL Photonics ◽

10.1063/5.0038496 ◽

2021 ◽

Vol 6 (2) ◽

pp. 026103

Author(s):

Mikhail Roiz ◽

Krishna Kumar ◽

Juho Karhu ◽

Markku Vainio

Keyword(s):

Frequency Tuning ◽

Frequency Comb ◽

Optical Frequency Comb ◽

Optical Frequency ◽

Simple Method ◽

Mid Infrared ◽

Comb Generation ◽

Offset Frequency

Download Full-text

Silicon photonic devices for mid-infrared applications

Nanophotonics ◽

10.1515/nanoph-2013-0027 ◽

2014 ◽

Vol 3 (4-5) ◽

pp. 329-341 ◽

Cited By ~ 19

Author(s):

Raji Shankar ◽

Marko Lončar

Keyword(s):

Gas Sensing ◽

Wavelength Region ◽

Photonic Devices ◽

Ring Resonators ◽

Space Communications ◽

Mid Infrared ◽

Silicon Photonic ◽

Processing Techniques ◽

Silicon Based

AbstractThe mid-infrared (IR) wavelength region (2–20 µm) is of great interest for a number of applications, including trace gas sensing, thermal imaging, and free-space communications. Recently, there has been significant progress in developing a mid-IR photonics platform in Si, which is highly transparent in the mid-IR, due to the ease of fabrication and CMOS compatibility provided by the Si platform. Here, we discuss our group’s recent contributions to the field of silicon-based mid-IR photonics, including photonic crystal cavities in a Si membrane platform and grating-coupled high-quality factor ring resonators in a silicon-on-sapphire (SOS) platform. Since experimental characterization of microphotonic devices is especially challenging at the mid-IR, we also review our mid-IR characterization techniques in some detail. Additionally, pre- and post-processing techniques for improving device performance, such as resist reflow, Piranha clean/HF dip cycling, and annealing are discussed.

Download Full-text