Article
Optics
Takahiko Mizuno, Yoshiaki Nakajima, Yuya Hata, Takuya Tsuda, Akifumi Asahara, Takashi Kato, Takeo Minamikawa, Takeshi Yasui, Kaoru Minoshima
Summary: Dual-comb microscopy (DCM) is an imaging modality based on optical-frequency-comb (OFC) mode, providing scan-less full-field imaging and confocal amplitude and phase imaging. The practicality of DCM is limited by the complexity and costs of fully frequency-stabilized OFC sources. This study introduces a low-complexity OFC source for DCM using a bidirectional single-cavity dual-comb fiber laser (SCDCFL), and demonstrates the effectiveness of computational image correction in reducing image blur. The proposed method enhances DCM generality and practicality, suggesting a possibility to extend computational image correction to dynamic objects.
Article
Physics, Multidisciplinary
J. S. Ochs, D. K. J. Boness, G. Rastelli, M. Seitner, W. Belzig, M. I. Dykman, E. M. Weig
Summary: Phononic frequency combs have been attracting increasing attention as a new type of nonlinear phenomenon and their potential applications. This study demonstrates the generation of a frequency comb by a single nanomechanical mode driven by a resonant monochromatic drive. The observed comb emerges at weak drive conditions, suggesting the presence of a negative nonlinear friction induced by the resonant drive. These findings go beyond the field of nanomechanics and present a new approach to generate tunable frequency combs in single-mode vibrational systems.
Article
Engineering, Multidisciplinary
D. Charczun, A. Nishiyama, G. Kowzan, A. Cygan, T. Voumard, T. Wildi, T. Herr, V Brasch, D. Lisak, P. Maslowski
Summary: This study demonstrates the first dual-comb realization of cavity mode-width and mode-dispersion spectroscopies, achieving high speed and resolution. By interleaving multiple spectra, it is possible to measure simultaneously the loss and dispersion of both the cavity and the intracavity medium, with potential applications in various fields.
Article
Physics, Multidisciplinary
Alejandra L. Collopy, Julian Schmidt, Dietrich Leibfried, David R. Leibrandt, Chin-Wen Chou
Summary: We study the Stark effect in an rf Paul trap to investigate its influence on the uncertainty of field-free rotational transition in a molecular ion. By measuring the changes in transition frequencies under known rf electric fields, we determine the permanent electric dipole moment of CaH+ and find agreement with theory. The rotational transitions in the molecular ion are probed using a frequency comb, with significantly improved coherence achieving a fractional statistical uncertainty as low as 4.6 x 10-13 for a transition line center.
PHYSICAL REVIEW LETTERS
(2023)
Article
Quantum Science & Technology
Beatrice Da Lio, Carlos Faurby, Xiaoyan Zhou, Ming Lai Chan, Ravitej Uppu, Henri Thyrrestrup, Sven Scholz, Andreas D. Wieck, Arne Ludwig, Peter Lodahl, Leonardo Midolo
Summary: This article presents a quantum frequency conversion scheme for converting single photons emitted by quantum dots to the telecommunication C band. The conversion achieves high end-to-end efficiency, purity, and indistinguishability.
ADVANCED QUANTUM TECHNOLOGIES
(2022)
Article
Quantum Science & Technology
Antonio Ortu, Jelena Rakonjac, Adrian Holzapfel, Alessandro Seri, Samuele Grandi, Margherita Mazzera, Hugues de Riedmatten, Mikael Afzelius
Summary: Ensemble-based quantum memories are crucial for overcoming the intrinsic rate limitation in long-distance communication. Rare-earth ion doped crystals, with the ability to utilize time, frequency, and spatial multiplexing, are the main candidates for highly multimode quantum memories. This article focuses on atomic frequency comb (AFC) quantum memories, providing theoretical formulas to quantify their temporal multimode capacity. Experimental analysis and prospects for higher capacity in europium- and praseodymium-doped Y2SiO5 crystals are presented, as well as the potential for spectral and spatial multiplexing to further increase mode capacity.
QUANTUM SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Chenglian Zhu, Malwina Marczak, Leon Feld, Simon C. Boehme, Caterina Bernasconi, Anastasiia Moskalenko, Ihor Cherniukh, Dmitry Dirin, Maryna Bodnarchuk, Maksym Kovalenko, Gabriele Raino
Summary: Attaining pure single-photon emission is crucial for quantum technologies. Over the past 20 years, researchers have developed various solid-state quantum emitters, but most of them require complex techniques. However, using quantum emitters that can operate at room temperature can greatly reduce system complexity.
Article
Multidisciplinary Sciences
Tomohiro Yamazaki, Rikizo Ikuta, Toshiki Kobayashi, Shigehito Miki, Fumihiro China, Hirotaka Terai, Nobuyuki Imoto, Takashi Yamamoto
Summary: The research team successfully demonstrated a polarization entangled biphoton frequency comb (BFC) with over 1400 frequency modes, the largest number to date, by placing a specific waveguide resonator within a Sagnac loop. The polarization entanglement was verified through quantum state tomography with high fidelity in representative frequency mode groups.
SCIENTIFIC REPORTS
(2022)
Article
Optics
J. Pupeikis, B. Willenberg, S. L. Camenzind, A. Benayad, P. Camy, C. R. Phillips, U. Keller
Summary: Single-cavity dual-comb lasers are a new type of ultrafast lasers with wide application potential. The researchers propose a method for multiplexing a single laser cavity to support noise-correlated modes, achieving high-energy, short-pulse, and low-timing-noise laser output.
Article
Optics
D. A. Long, J. R. Stroud, B. J. Reschovsky, Y. Bao, F. Zhou, S. M. Bresler, T. W. Lebrun, D. F. Plusquellic, J. J. Gorman
Summary: This study utilizes a dual optical frequency comb spectrometer to readout a microfabricated cavity optomechanical accelerometer, achieving high accuracy and dynamic range simultaneous measurements. The proposed method achieves a displacement sensitivity of 2 fm Hz(-1/2), a measurement rate of 100 kHz, and a dynamic range of 7.6 x 10(5), which is the highest among microfabricated cavity optomechanical sensors. Comparison with a commercial reference accelerometer shows agreement at the 0.5% level.
Article
Physics, Multidisciplinary
N. Schwegler, D. Holzapfel, M. Stadler, A. Mitjans, I. Sergachev, J. P. Home, D. Kienzler
Summary: This research demonstrates the co-trapping and sideband cooling of a H+2 - 9Be+ ion pair in a cryogenic Paul trap. The chemical lifetime of H+2 is studied in relation to the apparatus temperature, achieving lifetimes of up to 11+6 -3 h at 10 K. Cooling of two translational motion modes is also demonstrated, with an average phonon number corresponding to temperatures of 22(1) and 55(3) mu K, respectively. These results provide a basis for quantum logic spectroscopy experiments of H+2 and other light ions.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
Jia-Jian Chen, Wen-Qi Wei, Jia-Le Qin, Bo Yang, Jing-Zhi Huang, Zi-Hao Wang, Ting Wang, Chang-Yuan Yu, Jian-Jun Zhang
Summary: Multi-wavelength injection locked lasers have been demonstrated on silicon substrates, showing narrow optical linewidths and stable operation, highlighting their great potential as tunable on-chip multi-wavelength light sources.
PHOTONICS RESEARCH
(2022)
Article
Optics
Stijn Cuyvers, Bahawal Haq, Camiel Op de Beeck, Stijn Poelman, Artur Hermans, Zheng Wang, Agnieszka Gocalinska, Emanuele Pelucchi, Brian Corbett, Gunther Roelkens, Kasper Van Gasse, Bart Kuyken
Summary: Research shows that leveraging ultra-low losses of silicon-nitride waveguides to manufacture a III-V-on-silicon-nitride integrated optical comb laser leads to superior performance, high efficiency, and low manufacturing costs.
LASER & PHOTONICS REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Eugenia Pyurbeeva, Chunwei Hsu, David Vogel, Christina Wegeberg, Marcel Mayor, Herre van der Zant, Jan A. Mol, Pascal Gehring
Summary: Single molecules can reveal the presence of microscopic electron transfer dynamics through entropy measurement, and thermoelectric measurement can uncover spin transitions in the redox states of a molecule in a magnetic field. The power of thermoelectric measurements lies in determining the difference in configurational entropy between redox states of a nanoscale system without prior assumptions about its structure or dynamics.
Article
Optics
Yatan Xiong, Jiaqi Zhou, Xinru Cao, Shuzhen Cui, Huawei Jiang, Yan Feng
Summary: This study introduces a high-gain, narrowband, all-polarization-maintaining fiber Brillouin amplifier to address the low power issue of single lines in optical frequency combs (OFCs). Numerical simulations and experiments are conducted to investigate the amplification process for an individual OFC line. The study demonstrates the direct generation of a Watt-level single-mode laser from an OFC, achieving the highest power, signal-to-noise ratio, and side-mode-suppression ratio reported to date.
LASER & PHOTONICS REVIEWS
(2023)
Article
Astronomy & Astrophysics
Caleb I. Canas, Suvrath Mahadevan, William D. Cochran, Chad F. Bender, Eric D. Feigelson, C. E. Harman, Ravi Kumar Kopparapu, Gabriel A. Caceres, Scott A. Diddams, Michael Endl, Eric B. Ford, Samuel Halverson, Fred Hearty, Sinclaire Jones, Shubham Kanodia, Andrea S. J. Lin, Andrew J. Metcalf, Andrew Monson, Joe P. Ninan, Lawrence W. Ramsey, Paul Robertson, Arpita Roy, Christian Schwab, Gudmundur Stefansson
Summary: This study validates the planetary nature of an ultra-short-period planet orbiting the M dwarf KOI-4777. The planet, KOI-4777.01, is the smallest validated ultra-short period planet known and no evidence of additional massive companions has been found.
ASTRONOMICAL JOURNAL
(2022)
Article
Chemistry, Physical
Michael E. Harding, Filippo Lipparini, Juergen Gauss, Dieter Gerlich, Stephan Schlemmer, Ad van der Avoird
Summary: In this study, the vibration-rotation-tunneling (VRT) states of the He-H-3(+) complex were computed using an advanced electronic structure calculation. The results showed the existence of three global minima and five saddle points in the potential energy surface, as well as excited internal rotor states. The theoretical spectra generated from the calculations were in good agreement with the experimental spectra, confirming the accuracy of the computational results.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Optics
Nazanin Hoghooghi, Sida Xing, Peter Chang, Daniel Lesko, Alexander Lind, Greg Rieker, Scott Diddams
Summary: Mid-infrared (MIR) spectrometers are essential for studying molecular fingerprinting and hyper-spectral imaging. However, current GHz MIR dual-comb absorption spectrometers lack the ability to combine high speed, high spectral resolution, and broad optical bandwidth. This study introduces a broadband MIR frequency comb laser platform that overcomes these limitations, enabling accurate characterization of complex, transient events in chemistry, combustion, and microscopy.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Optics
Daniel M. B. Lesko, Kristina F. Chang, Scott A. Diddams
Summary: Non-perturbative and phase-sensitive light-matter interactions have been studied to generate attosecond pulses and control electrical currents. The use of solid state crystals combined with low pulse energy frequency combs and high-sensitivity demodulation techniques allows for the measurement of nonlinear effects dependent on the carrier-envelope phase. This research provides robust and ultra-sensitive methods for studying attosecond nonlinear processes in solid state systems.
Article
Multidisciplinary Sciences
Joel Guo, Charles A. McLemore, Chao Xiang, Dahyeon Lee, Lue Wu, Warren Jin, Megan Kelleher, Naijun Jin, David Mason, Lin Chang, Avi Feshali, Mario Paniccia, Peter T. Rakich, Kerry J. Vahala, Scott A. Diddams, Franklyn Quinlan, John E. Bowers
Summary: This work demonstrates a laser system with a 1.1 Hz linewidth and fractional frequency instability below 10^(-14) in 1 second. By utilizing integrated lasers and microfabricated mirrors, this system achieves low-noise performance and holds potential for high-volume manufacturing.
Article
Physics, Multidisciplinary
May E. Kim, William F. McGrew, Nicholas V. Nardelli, Ethan R. Clements, Youssef S. Hassan, Xiaogang Zhang, Jose L. Valencia, Holly Leopardi, David B. Hume, Tara M. Fortier, Andrew D. Ludlow, David R. Leibrandt
Summary: Comparisons of high-accuracy optical atomic clocks are crucial for precision tests, relativistic geodesy, and the anticipated redefinition of the second. This study demonstrates a new comparison protocol that allows for longer interrogation times, resulting in a significant improvement in comparison instability. The achieved stability represents one of the most stable interspecies clock comparisons to date.
Article
Physics, Applied
Charles A. McLemore, Naijun Jin, Megan L. Kelleher, James P. Hendrie, David Mason, Yizhi Luo, Dahyeon Lee, Peter Rakich, Scott A. Diddams, Franklyn Quinlan
Summary: The best performance from compact, portable, and repeatably manufactured electromagnetic (EM) oscillators has for decades been built upon crystalline quartz resonators operating at radio frequencies. However, meeting demands for increased measurement sensitivity requires pushing beyond a fractional frequency stability of 10-13, typical of the best ovenized quartz. Here we demonstrate the validity of a manufacturable, compact Fabry-Perot reference that improves upon all other centimeterscale oscillators by more than a factor of 10, including those based on solid-state optical resonators as well as quartz.
PHYSICAL REVIEW APPLIED
(2022)
Article
Astronomy & Astrophysics
Shubham Kanodia, Suvrath Mahadevan, Jessica Libby-Roberts, Gudmundur Stefansson, Caleb I. Canas, Anjali A. A. Piette, Alan Boss, Johanna Teske, John Chambers, Greg Zeimann, Andrew Monson, Paul Robertson, Joe P. Ninan, Andrea S. J. Lin, Chad F. Bender, William D. Cochran, Scott A. Diddams, Arvind F. Gupta, Samuel Halverson, Suzanne Hawley, Henry A. Kobulnicky, Andrew J. Metcalf, Brock A. Parker, Luke Powers, Lawrence W. Ramsey, Arpita Roy, Christian Schwab, Tera N. Swaby, Ryan C. Terrien, John Wisniewski
Summary: We report the discovery of TOI-5205b, a transiting Jovian planet orbiting a solar metallicity M4V star. It has one of the highest mass ratios for M-dwarf planets, and its large size results in one of the deepest transits of a confirmed exoplanet orbiting a main-sequence star. TOI-5205b's high mass challenges conventional theories of planet formation and disk scaling relations.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Jessica E. Libby-Roberts, Maria Schutte, Leslie Hebb, Shubham Kanodia, Caleb I. Canas, Guomundur Stefansson, Andrea S. J. Lin, Suvrath Mahadevan, Winter Parts, Luke Powers, John Wisniewski, Chad F. Bender, William D. Cochran, Scott A. Diddams, Mark E. Everett, Arvind F. Gupta, Samuel Halverson, Henry A. Kobulnicky, Adam F. Kowalski, Alexander Larsen, Andrew Monson, Joe P. Ninan, Brock A. Parker, Lawrence W. Ramsey, Paul Robertson, Christian Schwab, Tera N. Swaby, Ryan C. Terrien
Summary: We conducted a thorough analysis of the TOI-3884 system, which is a validated M4-dwarf star with a transiting super-Neptune. Through high-precision light curves and radial velocity observations, we determined the planetary mass and radius of TOI-3884b. We also observed a starspot crossing event after every ingress, revealing wavelength dependence and evolving amplitude and duration over time. This system provides a unique opportunity to study the nature of a misaligned super-Neptune and spot evolution on an active mid-M dwarf.
ASTRONOMICAL JOURNAL
(2023)
Article
Optics
Megan L. Kelleher, Charles A. Mclemore, Dahyeon Lee, Josue Davila-Rodriguez, Scott A. Diddams, Franklyn Quinlan
Summary: We have developed and demonstrated a compact portable Fabry-Perot optical reference cavity with a volume of less than 6 mL. The laser locked to the cavity achieves a thermal noise-limited fractional frequency stability of 2 x 10-14. By utilizing an electro-optic modulator for broadband feedback control, our design achieves near thermal-noise-limited phase noise performance from 1 Hz to 10 kHz offset frequencies. The low vibration, temperature, and holding force sensitivity of our design make it suitable for various out-of-the-lab applications such as optically derived low noise microwave generation, compact and mobile optical atomic clocks, and environmental sensing through deployed fiber networks.
Article
Astronomy & Astrophysics
Andrea S. J. Lin, Jessica E. Libby-Roberts, Jaime A. Alvarado-Montes, Caleb I. Canas, Shubham Kanodia, Te Han, Leslie Hebb, Eric L. N. Jensen, Suvrath Mahadevan, Luke C. Powers, Tera N. Swaby, John Wisniewski, Corey Beard, Chad F. Bender, Cullen H. Blake, William D. Cochran, Scott A. Diddams, Robert C. Frazier, Connor Fredrick, Michael Gully-Santiago, Samuel Halverson, Sarah E. Logsdon, Michael W. McElwain, Caroline Morley, Joe P. Ninan, Jayadev Rajagopal, Lawrence W. Ramsey, Paul Robertson, Arpita Roy, Christian Schwab, Guomundur Stefansson, Daniel J. Stevens, Ryan C. Terrien, Jason T. Wright
Summary: TOI-1899 b is a rare exoplanet, a temperate warm Jupiter orbiting an M dwarf. By accurately measuring its orbital period, radius, planet mass, and eccentricity, we can gain a better understanding of the characteristics and formation mechanisms of this planet.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Caleb I. Canas, Shubham Kanodia, Jessica Libby-Roberts, Andrea S. J. Lin, Maria Schutte, Luke Powers, Sinclaire Jones, Andrew Monson, Songhu Wang, Gudmundur Stefansson, William D. Cochran, Paul Robertson, Suvrath Mahadevan, Adam F. Kowalski, John Wisniewski, Brock A. Parker, Alexander Larsen, Franklin A. L. Chapman, Henry A. Kobulnicky, Arvind F. Gupta, Mark E. Everett, Bryan Edward Penprase, Gregory Zeimann, Corey Beard, Chad F. Bender, Knicole D. Colon, Scott A. Diddams, Connor Fredrick, Samuel Halverson, Joe P. Ninan, Lawrence W. Ramsey, Arpita Roy, Christian Schwab
Summary: We confirm the planetary nature of two gas giants discovered by TESS that transit M dwarfs with stellar companions at wide separations. TOI-3984 A is an M4 dwarf hosting a short-period gas giant with a wide-separation white dwarf companion. TOI-5293 A is an M3 dwarf hosting a short-period gas giant with a wide-separation M dwarf companion.
ASTRONOMICAL JOURNAL
(2023)
Article
Optics
Ziguang Lin, Yiheng Lin, Wei Yi
Summary: This paper proposes a theoretical scheme that significantly impacts the external motion of a single trapped ion through the non-Hermitian skin effect (NHSE) and demonstrates its competition and potential applications.
Article
Optics
Xinxing Yuan, Yue Li, Mengxiang Zhang, Chang Liu, Mingdong Zhu, Xi Qin, Nikolay V. Vitanov, Yiheng Lin, Jiangfeng Du
Summary: A proof-of-principle experiment demonstrates the use of dynamical decoupling to protect superpositions in multilevel systems (qudits) from environmental magnetic field interference, significantly prolonging coherence. This experiment opens up possibilities for long coherence quantum memory, metrology, and information processing with qudits.
Article
Chemistry, Physical
Juana Vazquez Quesada, Jiri Chmela, Jean-Francois Greisch, Wim Klopper, Michael E. Harding
Summary: This study analyzes the influence of long-range interactions on the structure of complexes of Eu(iii) with four 9-hydroxy-phenalen-1-one ligands and one alkaline earth metal dication. It is found that considering dispersion corrections does not always yield structures that are consistent with experimental findings.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
