Applied Physics

53 Two-level masers as heat-to-work converters.

52 Magnetic Levitation Stabilized by Streaming Fluid Flows.

51 Acoustic evolution of old Italian violins from Amati to Stradivari.

50 Ultrafast nonthermal heating of water initiated by an X-ray Free-Electron Laser.

49 A continuous-wave room-temperature maser is demonstrated by combining a cavity with a high Purcell factor with the narrow linewidth of nitrogen–vacancy defect centres in diamond.

48 Wrapping with a splash: High-speed encapsulation with ultrathin sheets.

47 Compressive 3D ultrasound imaging using a single sensor.

46 Quark-level analogue of nuclear fusion with doubly heavy baryons.

45 Highly stable organic polymer field-effect transistor sensor for selective detection in the marine environment.

44 Carbon nanotube transistors scaled to a 40-nanometer footprint.

43 A living mesoscopic cellular automaton made of skin scales.

42 Transition from turbulent to coherent flows in confined three-dimensional active fluids.

41 An intelligent artificial throat with sound-sensing ability based on laser induced graphene.

40 Levitation and three-dimensionally stable trapping of a wide variety of particles in a vacuum through thermophoretic force in the presence of a strong temperature gradien is demonstrated.

39 Diamond Radio Receiver: Nitrogen-Vacancy Centers as Fluorescent Transducers of Microwave Signals.

38 A cryogenic thermal imaging technique that uses a superconducting quantum interference device fabricated on the tip of a sharp pipette can be used to image the thermal signature of extremely low power nanometre-scale dissipation processes.

37 Long-term data storage in diamond.

36 Microresonator soliton dual-comb spectroscopy.

35 Controlling the mode of operation of organic transistors through side-chain engineering.

34 Superflexibility of graphene oxide.

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