Ilmuwan EPFL perkecil laser ultracepat ke dalam chip fotonik

Jumat, 05 Juni 2026

Dilaporkan oleh AI

Para peneliti di EPFL telah menciptakan laser ultracepat berskala chip pertama yang menyamai performa laser femtodetik meja tradisional. Perangkat ini menghasilkan pulsa sesingkat 147 femtodetik dengan energi sebesar 1,05 nanojoule.

Terobosan yang dilaporkan dalam jurnal Nature ini dipimpin oleh Profesor Tobias J. Kippenberg. Teknologi ini menggunakan arsitektur osilator Mamyshev pada chip silikon nitrida yang didoping erbium. Rongga laser tersebut berukuran 42 sentimeter namun dilipat ke dalam chip seukuran kepala korek api. Desain ini menghindari komponen yang sulit dibuat pada chip fotonik dan tahan terhadap efek nonlinier yang tidak stabil. Rekan penulis Zheru Qiu mencatat bahwa pendekatan ini memungkinkan manufaktur skala wafer untuk lebih dari 1.000 perangkat sekaligus. Penelitian ini juga melibatkan para peneliti dari Helmholtz-Zentrum Dresden-Rossendorf. Potensi aplikasinya mencakup diagnostik medis, pengindraan lingkungan, spektroskopi, dan jam atom optik yang ringkas.

MIT builds terahertz microscope to observe quantum motions in superconductors

Rabu, 18 Maret 2026 Dilaporkan oleh AI Gambar dihasilkan oleh AI

Physicists at MIT have developed a new microscope using terahertz light to directly observe hidden quantum vibrations inside a superconducting material for the first time. The device compresses terahertz light to overcome its wavelength limitations, revealing frictionless electron flows in BSCCO. This breakthrough could advance understanding of superconductivity and terahertz-based communications.

Scientists unveil camera capturing trillionth-of-a-second events

Researchers at East China Normal University have developed a new imaging technique that captures ultrafast events in trillionths of a second, revealing both brightness and structural changes in a single shot. The method, called compressed spectral-temporal coherent modulation femtosecond imaging (CST-CMFI), tracks phenomena like plasma formation and electron movement. Yunhua Yao, the team leader, described it as a major advance for physics, chemistry, and materials science.

China unveils Jiuzhang 4.0 photonic quantum prototype

Kamis, 14 Mei 2026 Dilaporkan oleh AI

Researchers at the University of Science and Technology of China have developed the Jiuzhang 4.0 photonic quantum computing prototype, which manipulates 3,050 photons and sets a new record.

Teknologi

University of Chicago team simplifies creation of entangled quantum states

Asia

Chinese optical clock reaches 10^{-19} precision level

Ilmu Pengetahuan

Physicists create first butterfly-shaped ultracold molecule

Researchers design first quantum grandfather clock

Scientists have created the first complete design for a quantum version of a pendulum clock using a single atom, mirrors and light. The device could advance understanding of timekeeping at the quantum scale.

Scientists teleport photon state across 270 meters

Jumat, 01 Mei 2026 Dilaporkan oleh AI

An international team of researchers has achieved a milestone in quantum communication by teleporting the polarization state of a single photon between two separate quantum dots over a 270-meter open-air link. The experiment, conducted at Sapienza University of Rome, demonstrates the potential for quantum relays in future quantum networks. The findings were published in Nature Communications.

23 Mei 2026 08.07