Title: Broadband Photoconductive Sampling in Gallium Phosphide

Journal Article · · Advanced Optical Materials
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  1. Division of Attosecond Physics Max Planck Institute of Quantum Optics 85748 Garching Germany, Department of Physics Ludwig‐Maximilians‐Universität 85748 Garching Germany
  2. Division of Attosecond Physics Max Planck Institute of Quantum Optics 85748 Garching Germany, Department of Physics Ludwig‐Maximilians‐Universität 85748 Garching Germany, PULSE Institute SLAC National Accelerator Laboratory Menlo Park CA 94025 USA, Applied Physics Department Stanford University Stanford CA 94305 USA

Abstract Direct measurements of the electric field of light enable new observations of light–matter interactions. In the near‐infrared and visible spectral ranges, this typically relies on techniques that exploit nonlinearities in gases or solids, which limits their sensitivity. Here, a method for the detection of broadband near‐infrared fields spanning more than one octave from 110 to 220 THz based on linear absorption in a semiconductor is demonstrated. This technique, which avoids complex vacuum setups and works under ambient conditions, employs linear photoconductive sampling (LPS) in gallium phosphide. Simulations reveal that the response function of LPS is concerned with the intensity envelope of the gate field, in contrast to electro‐optic sampling, relaxing the stringent temporal requirements on the gate pulse.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
US Air Force Office of Scientific Research (AFOSR); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Contributing Organization:
Linac Coherent Light Source (LCLS)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1958691
Journal Information:
Advanced Optical Materials, Journal Name: Advanced Optical Materials Journal Issue: 9 Vol. 11; ISSN 2195-1071
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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